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174 Cards in this Set
- Front
- Back
Which of the following primary teeth is most likely to have an oblique ridge?
- Maxillary canine - Maxillary first molar - Maxillary second molar - Mandibular first molar - Mandibular second molar |
Maxillary second molar
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When compared to the primary mandibular first molar, the primary mandibular second molar normally exhibits a greater number of which of the following?
- Oblique ridges - Roots - Cusps - Cervical ridges - Transverse ridges |
Cusps
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In an indeal intercuspal relation, the mesiofacial cusp of the maxillary first molar opposed which morphologic entitiy of the mandibular first molar?
- Central fossa - Lingual groove - Distofacial groove - Mesiofacial groove |
Mesiofacial groove
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The occlusal outline of a mandibular first molar is similar to a:
- circle - square - hexagon - pentagon - rhomboid |
pentagon
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Which of the following statements is correct with respect to mastication of food?
- Food is masticated primarily in a border movement - Food is masticated primarily in lateral contacting movement - An ideal occlusion is requisite for masticatory efficiency - Proper incisor contact is a requisite for masticatory efficiency - Indigestion is generally related to inadequate mastication of food |
Food is masticated primarily in lateral contacting movement
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Which of the following factors most influences the lingual concavity of the maxillary anterior teeth and groove direction of the posterior teeth?
- Anterior guidance - Angle of the eminence - Curve of occlusion - Sideshift of the mandible (Bennett movement) - Direction of movement of the rotating condyle |
Sideshift of the mandible (Bennett sideshift)
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On the crown of the primary maxillary first molar, the mesial surface normally:
- is larger than the distal surface of the same tooth - exhibits a concave lingual outline - is wider occlusocervically than buccolingually - exhibits a straight cervical line - is wider buccolingually at the occlusal table than at the cervical third |
is larger than the distal surface of the same tooth
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Which of the following describes the contact relationship between a maxillary central incisor and a maxillary lateral incisor?
- Contact is offset to the lingual - Contact is centered incisocervically - Lingual embrasure is larger than the facial embrasure - Incisal embrasure is the largest of all the embrasures |
Lingual embrasure is larger than the facial embrasure
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Mesial and distal pulp horns are more likely to be found in which of the following teeth?
- Maxillary central incisors - Mandibular central incisors - Mandibular canines - Maxillary first premolars - Mandibular first premolars |
Maxillary central incisors
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When the mandible moves to the right, the mesiolingual cusp of the maxillary right first molar passes through which groove of the mandibular right first molar?
- Mesiomarginal - Distofacial - Mesiofacial - Lingual - Central |
Lingual
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In unilateral balanced occlusion, contact between lower buccal cusps and upper buccal cusps, along with simultaneous contact between lower lingual cusps and upper lingual cusps, will most likely occur in which of the following types of mandibular movement?
- Laterotrusive - Mediotrusive - Straight retrusive - Straight protrusive |
Laterotrusive
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The apex of the horizontal plane Gothic-arch tracing represents which of the following positions?
- Maximum opening - Centric relation - Lateral protrusive - Rest position |
Centric relation
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Initiation of calcification for the mandibular central incisor normally occurs at:
- 3 to 4 months of age - 1 year of age - 2 to 3 years of age - 4 to 5 years of age - 6 to 7 years of age |
3 to 4 months of age
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Of the primary maxillary teeth, the cervical ridge would stand out most prominently as a distinct entity in which surface of which molar?
- First molar, Distofacial surface - First molar, Mesiofacial surface - Second molar, Distofacial surface - Second molar, Mesiolingual surface - Second molar, Distolingual surface |
First molar, Mesiofacial surface
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During endodontic therapy, one will usually find two pulp canals in which of the following?
- Mandibular canine - Distofacial root of a maxillary molar - Distal root of a mandibular first molar - Mesial root of a mandibular first molar - Lingual root of a maxillary first molar |
Mesial root of a mandibular first molar
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The movement in the upper compartment of the temporomandibular joint is rotation and translation. The movement in the lower compartment is translation.
- Both statements are true - Both statements are false - The first statesment is true, and the second is false - The first statement is false, and the second is true |
Both statements are false
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The non-working condyle performs which of the following movements?
- Straight forward - Forward and downward - Downward, forward, and lateral - Downward, backward, and medial - Downward, forward, and medial |
Downward, forward, and medial
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Which of the following teeth represents the one most likely to present with three roots?
- Mandibular central incisor - Mandibular second premolar - Mandibular canine - Maxillary first premolar - Maxillary second premolar |
Maxillary first premolat
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Which of the following best describes a centric holding cusp of a mandibular left second molar?
- It is the distofacial cusp and occlude in the embrasure between maxillary first and second molars - It is the distofacial cusp and occludes in the central fossa of a maxillary second molar - It is the distolingual cusp and occludes in the embrasure between maxillary first and second molars - It is the distolingual cusp and occludes in the central fossa of a maxillary second molar |
It is the distofacial cusp and occludes in the central fossa of a maxillary second molar
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Each of the following can be found in the dental pulp exceot one, Which one is this exception?
- Nerve tissue - Blood vessels - Cementoblasts - Lymph vessels |
Cementoblasts
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The spacing between anterior teeth in the primary dentition is most frequently causes be:
- thumb sucking - tongue thrusting - transseptal gingival fibers - the growth of the dental arches - the pressure from succedaneous teeth |
the growth of the dental arches
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In the intercuspal position, which of the following anterior teeth has the potential of contacting both anterior and posterior antagonists?
- Maxillary lateral incisors - Mandibular lateral incisor - Maxillary canine - Mandibular canine |
Maxillary canine
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On a maxillary first molar, the occlusal outline contains two obtuse and two acute angles. The acute line angles are:
- mesiolingual and distolingual - mesiofacial and distolingual - mesiolingual and distofacial - mesiofacial and distofacial - distofacial and distolingual |
mesiofacial and distolingual
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Ordinarily, a 6-year-old child would have which of the following teeth clinically visible?
- All primary teeth only - All primary teeth and permanent first molars - Primary posterior teeth, permanent first molars, and central incisors - Primary canines, permanent first molars, and permanent mandibular incisors |
All primary teeth and permanent first molars
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In an ideal intercuspal position, the distoincisal aspect of a mandibular central incisor opposes which structure of which maxillary incisor?
- Lingual fossa of a lateral - Mesial marginal ridge of a lateral - Distal marginal ridge of a central - Mesial marginal ridge of a central - Lingual fossa of a central |
Lingual fossa of a central
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In an ideal intercuspal position, the distolingual cusp of a maxillary first molar opposes the:
- central fossa of the mandibular first molar - lingual sulcus of the mandibular first molar - mesial fossa of the mandibular second molar - mesial marginal ridge of the mandibular second molar - facial embrasure between the mandibular first and second molars |
mesial marginal ridge of the mandibular second molar
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Which of the following best describes the occlusal outline of a maxillary first molar from an occlusal view?
- Ovoid - Square - Reactangular - Pentagonal - Rhomboidal |
Rhomboidal
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Which of the following represents the total number of teeth int he permanent dentition that normally possess a cingulum?
- 4 - 6 - 8 - 12 - 16 |
12
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Which of the following best describes the normal root of the mandibular canine, in cross section at the CEJ?
- Circular, symmetrical - Triangular, symmetrical - Ovoid, symmetrical - Ovoid, but wider mesiodistally at the lingual - Ovoid, but wider mesiodistally at the labial |
Ovoid, but wider mesiodistally at the labial
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Identify the anterior tooth that most frequently exhibits a bifurcated root and identify the positions of the roots.
- Maxillary lateral incisor, Mesial and distal - Maxillary lateral incisor, Facial and lingual - Maxillary canine, Facial and lingual - Mandibular canine, Facial and lingual |
Mandibular canine, Facial and lingual
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Which of the following teeth is the least likely tooth to have a bifurcation of the root?
- Mandibular canine - Mandibular central incisor - Maxillary central incisor - Mandibular lateral incisor - Maxillary second premolar |
Maxillary central incisor
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Which of the following represents the slight incisocervical concavity on the labial crown surface of the canines that is found in the incisal third, just mesial to the labial ridge?
- Mesial fossa - Mesiolingual fissa - Mesial marginal ridge - Mesiolabial line angle - Mesiolabial developmental depression |
Mesiolabial developmental depression
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Compared to a maxillary second premolar, a maxillary first premolar has:
- two roots, one facial and one lingual - three developmental grooves - one root containing two root canals - a shorter central groove - two roots, one mesial and one distal |
two roots, one facial and one lingual
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A pronounced developmental groove is usually present on a marginal ridge of which of the following teeth?
- Maxillary canine - Maxillary first premolar - Mandibular second premolar - Mandibular first molar - Maxillary second molar |
Maxillary first premolar
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Which of the following represents the number and the location of cusps on the Y-type mandibular second premolar?
- No lingual and one facial - One lingual and one facial - One lingual and two facial - Two lingual and one facial - Two lingual and two facial |
Two lingual and one facial
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Whihc of the following primary teeth is usually bilaterally symmetrical when view favially and incisally?
- Mandibular central incisor - Maxillary central incisor - Maxillary lateral incisor - Mandibular lateral incisor - Mandibular canine |
Mandibular central incisor
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The marginal ridges are more prominent on the lingual surface of which of the following incisors?
- Maxillary central - Mandibular central - Maxillary lateral - Mandibular lateral |
Maxillary lateral
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Where is the lingual height of contour located on a mandibular first premolar?
- Occlusal third - Junction of the occlusal and middle thirds - Middle third - Junction of the middle and cervical thirds - Cervical third |
Middle third
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Which of the following teeth has the greatest cervico-occlusal crown height?
- Maxillary first premolar - Mandibular second premolar - Maxillary first molar - Mandibular second molar - Maxillary second molar |
Maxillary first premolar
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The oblique ridge of the maxillary molars extends between which two cusps?
- Mesiofacial and distofacial - Mesiolingual and distolingual - Mesiolingual and distofacial - Mesiofacial and mesiolingual - Mesiofacial and distolingual |
Mesiolingual and distofacial
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Each of the following muscles is constrained in function due to swelling at the angle of the mandible and the lateral neck except one. Which one is this exception?
- Digastric - Mylohyoid - Geniohyoid - Medial pterygoid - Lateral pterygoid |
Medial pterygoid
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A radiograph of Tooth #32 shows two well-formed roots. When sectioning this tooth to separate the roots and simplify extraction, which of the following best describes how the cut should be made?
- Bucco lingually through the crown and fircation - Bucco lingually through the pulp horns - Mesio distally through the crown and furcation - Mesio distally through the crown at the level of the CEJ |
Bucco lingually through the crown and furcation
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Prior to extracting Tooth #32, surgery is done to expose the entire crown of the tooth. Which of the following should the dentist expect to see?
- The buccal lingual dimension of the crown is greater than the mesial distal dimension - The mesial distal dimension of the crown is greater than the buccal lingual dimension - The buccal lingual and mesial distal dimensions of the crown are the same - The crown of Tooth #32 is smaller than the crown of Tooth #1 |
The mesial distal dimension of the crown is greater than the buccal lingual dimension
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On a panoramic radiograph of a 7-year-old, the dentist will expect to see each of the following features except one. Which one is this exception?
- Primary maxillary lateral incisors with partially resorbed roots - Partially eruped maxillary central incisors with incomplete root closure at the apex - Partially erupted mandibular lateral incisors with incomplete root closure at the apex - Fully erupted mandibular central incisors with complete root formation and closure at the apex - Fully erupted mandibular first molars with incomplete root formation and non closure at the apex |
Fully eruped mandibular central incisors with complete root formation and closure at the apex
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A radiograph of the maxillary central incisors in a 7-year-old reveals a small, calcified radiopaque mass between the roots of Teeth #8 and #9. Which of the following is the most likely reason for this mass?
- Distodens - Mesiodens - Talon cusp - Dens in dente - Peg lateral incisor |
Mesiodens
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With fracture of hte left condyle, the condylar head remains in the mandibular fossa due to which of the following ligaments?
- Periodontal - Otomandibular - Stylomandibular - Sphenomandibular - Temporomandibular |
Temporomandibular
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Clinical examination reveals that the lingual cusp on Tooth #5 is broken off. This is most likely due to which of the following mandibular movements during trauma?
- Left mesiotrusive - Right mesiotrusive - Protrusive - Left laterotrusive - Right laterotrusive |
Left mesiotrusuve
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Which of the following primary teeth has a distinctly prominent facial cervical ridge that makes it different from other teeth?
- Maxillary canine - Mandibular canine - Mandibular first molar - Maxillary second molar - Maxillary central incisor |
Mandibular first molar
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As viewed from the lingual, the lingual cusp of a maxillary first premolar is inclined:
- distally - mesially - distofacially - mesiolingually - directly over the center mesiodistally |
mesially
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The cusp of Carabelli occurs with sufficient frequency to be considered normal in which of the following molars?
- Primary maxillary first - Primary maxillary second - Mandibular first - Maxillary second |
Primary maxillary second
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Which of the following temporomandibular joint ligaments restricts the movement of the disc away from the condyle during function?
- Discal - Stylomandibular - Temporomandibular - Sphenomandibular |
Discal
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The presence of mamelons in a 10-year-old patient suggests which of the following conditions?
- Fluorosis - Malnutrition - Malformation - Anterior open bite - Retained primary teeth |
Anterior open bite
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When viewed from the incisal aspect, each of the following features of an incisor is visible except one. Which one is this exception?
- Cingulum - Lingual fossa - Cervical line - Marginal ridges - Mesiofacial developmental depression |
Cervical line
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In an ideal intercuspal position, the mesiofacial groove of a mandibular first molar opposed which part of the maxillary first molar?
- Tip of the distofacial cusp - Tip of the mesiofacial cusp - Triangular ridge of the distofacial cusp - Triangular ridge of the mesiofacial cusp |
Triangular ridge of the mesiofacial cusp
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The condyle on the laterotrusive side generally rotates about a:
- sagittal axis only - horizontal axis only - horizontal axis and translates laterally - vertical axis and translates laterally |
vertical axis and translates laterally
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Which teeth occlude with only one opposing tooth?
- Maxillary canines - Mandibular lateral incisors - Mandibular central incisors - Maxillary first premolars - Mandibular third molars |
Mandibular central incisors
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The developmental groove between the distofacial cusp and the distal cusp of a mandibular first molar is the:
- facial - distal - distofacial - mesiofacial - distal oblique |
distofacial
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Which of the following permanent roots is thin mesiodistally, wide faciolingually, and concave on both mesial and distal surfaces?
- Maxillary central incisor - Mandibular central incisor - Mandibular second premolar - Facial root of a maxillary first premolar - Lingual root of a maxillary first molar |
Mandibular central incisor
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Which of the following represents the structure in the maxillary alveolar bone that maxillary premolar roots occasionally penetrate?
- Antrum - Nasal septum - Frontal sinus - Zygomatic arch - Mandibular fossa |
Antrum
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The contact ares of anterior teeth are incisal to the middle thirds in each of the following except one. Which one is this exception?
- Distal contact of the maxillary canine - Mesial contact of the maxilary canine - Mesial contact of the maxillary lateral incisor - Mesial contact of the mandibular lateral incisor - Distal contact of the mandibular lateral incisor |
Distal contact of the maxillary canine
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Which of the following features helps to distinguish a maxillary lateral incisor from a mandibular lateral incisor? The maxillary lateral has:
- a thinner incisal ridge - a crown more twisted on the root - a more pronounced lingual fossa - a root that is flattened mesiodistally - a mesioincisal angle that is sharped |
a more pronounced lingual fossa
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When compared to a maxillary first molar, the roots of a maxillary second molar:
- are longer - are more divergent - are fewer in number - have less potential for fusion - are greater in distal inclination |
are greater in distal inclination
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In right laterotrusive movement, the lingual cusp of a maxillary right second premolar passes through which of the following mandibular structures?
- Facial groove of the right first molar - Lingual groove of the right first molar - Embrasure between the right first premolar and the right second premolar - Embrasure between the right second premolar and the right first molar |
Embrasure between the right second premolar and the right first molar
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On the lingual crown surface of maxillary canines, which of the following is the structure located immediately mesial to the distolingual fossa?
- Cingulum - Lingual ridge - Mesiolingual fossa - Mesial marginal ridge - Distal marginal ridge |
Lingual ridge
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Which of the following are the teeth whose masticatory function is primarily biting?
- Incisors and canines - Incisors and premolars - Canines and premolars - Premolars and molars |
Incisors and canines
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Which of the following best represents the structure on the crown of the maxillary canine which normally lies directly distal to the mesiolingual fossa?
- Lingual ridge - Distal fossa - Distolingual fossa - Distal marginal ridge - Mesial marginal ridge |
Lingual ridge
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When an adult with normal occlusion moves the mandible from maximum intercuspation to right lateral relation, which of the following cusps of maxillary left teeth moves through the facial embrasure between the mandibular left premolars?
- Lingual cusp of first premolar - Facial cusp of second premolar - Lingual cusp of second premolar - Mesiofacial cusp of first molar - Distofacial cusp of first molar |
Lingual cusp of first premolar
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The tissue present between the articulating bones of the temporomandibular joint is called the:
- articular disc - fibrous capsule - synovial membrane - joint capsule - bilaminar zone |
articular disc
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From a frontal view, which of the following describes the plane of occlusion of the mandibular arch in a normal dentition?
- It is flat - It is a convex curve - It is a concave curve - It is the result of uniform perpendicular alignment of the teeth |
It is a concave curve
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Which of the following teeth normally has the longest root?
- Maxillary canine - Mandibular canine - Maxillary central incisor - Mandibular first premolar - Maxillary second premolar |
Maxillary canine
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Which of the following mandibular molar proximal crown surfaces normally exhibits the largest size?
- Mesial of the first - Distal of the first - Mesial of the second - Distal of the second - Mesial of the third |
Mesial of the first
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In a cusp to fossa contacting relationship in intercuspal position, the maxillary first premolar is most likely to articulate with which of the following mandibular teeth?
- Lateral incisor - Lateral incisor and canine - First premolar - Canine and first premolar - First premolar and second premolar |
First premolar
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The major grooves of the mandibular second molar form which of the following patterns?
- H - Y - X - + - - |
+
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If the maxillary and mandibular incisors are in crossbite, then the contacting surfaces, during maximum intercuspation, would be:
- mandibular lingual and maxillary facial - mandibular facial and maxillary facial - mandibular lingual and maxillary lingual - mandibular facial and maxillary lingual |
mandibular lingual and maxillary facial
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As distinguished from a maxillary canine, a mandibular canine typically has:
- a sharper facial cusp tip - contact areas located more incisally - a more pronounced cingulum - a more convex mesial border, when viewed facially |
contact areas located more incisally
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Which of the following teeth has its mesial marginal ridge located more cervically than its distal marginal ridge?
- Mandibular first premolar - Maxillary first premolar - Maxillary first molar - Primary mandibular first molar - Mandibular second molar |
Mandibular first premolar
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Which of the following represents the ridge on the occlusal surface of the maxillary first molar that normally forms the distal boundary of the central fossa?
- Oblique - Distal marginal - Mesial marginal - Mesial cusp ridges of the MF cusp - Distal cusp ridges of the DF cusp |
Oblique
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A transverse ridge results from the union of:
- Mesial and distal marginal ridges - Facial and lingual cusp ridges - Facial and lingual triangular ridges - Marginal and triangular - Cusp ridge and triangular ridge |
Facial and lingual triangular ridges
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Which of the following is normally exhibited by maxillary second premolars?
- Two roots - A mesial concavity of the crown - A facial crown contour that is greatly inclined to the lingual - A lingual height of contour in the cervical third of the crown - A crown that is wider faciolingually than mesiodistally |
A crown that is wider faciolingually than mesiodistally
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Which of the following teeth possess three cusps?
- Maxillary second premolar and maxillary first molar - Maxillary second premolar and mandibular first premolar - Maxillary first molar and mandibular second molar - Maxillary second molar and mandibular first premolar - Maxillary second molar and mandibular second premolar |
Maxillary second molar and mandibular second premolar
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A mandibular first molar usually has how many roots and canals?
- Two roots, Two canals - Two roots, Three canals - Three roots, Two canals - Three roots, Three canals |
Two roots, Three canals
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Which of the following roots most likely has two canals?
- Facial root of the maxillary first premolar - Palatal root of the maxillary first molar - Distofacial root of the maxillary first molar - Mesiofacial root of the maxillary first molar - Distal root of the mandibular first molar |
Mesiofacial root of the maxillary first molar
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The mixed dentition stage is normally initiated by the:
- exfoliation of the primary maxillary central incisor - exfoliation of the primary maxillary second molar - exfoliation of the primary mandibular second molar - eruption of the maxillary first molar - eruption of the mandibular first molar |
eruption of the mandibular first molar
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At age 8, the maxilary first molar has:
- a mesial contact with the primary first molar - a distal contact with the second molar - no mesial contact - no distal contact - not yet erupted |
no distal contact
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A patient reports breaking a lower right central incisor while eating a cookie. Which of the following mandibular movements was the patient most likely making when this occured?
- Protrusive - Retrusive - Straight closure - Right working - Left working |
Protrusive
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When viewed from the sagittal plane, the axial inclination of the anterior teeth:
- remains vertical - inclines facially - inclines mesially - inclines distally - inclines lingually |
inclines facially
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A radiograph of the maxillary posterior teeth in a 10-year-old should demonstrate which of the following calcifications completed?
- First premolar root - Second premolar root - First molar root - third molar crown |
First molar root
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To properly align the maxillary central incisor and the maxillary lateral incisor, an orthodontist will ensure that the distal surface of the maxillary central incisor contacts what area of the mesial surface of the maxillary lateral incisor?
- Cervical line - Mesio incisal line angle - Incisal third - Middle third - Cervical third |
Incisal third
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Which of the following best describes the occlusal classification when the disto buccal cusp of the mandibular first molar rests in the central fossa of the maxillary first molar?
- Class I - Class II, division I - Class II, division II - Class III |
Class I
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Which of the following best describes the most likely presentation of pulp canals in tooth #30?
- Two canals, one in each root - Three canals, two in the mesial root and one in the distal root - Three canals, one in the mesial root and two in the distal root - Four canals, two in each root |
Three canals, two in the mesial root and one in the distal root
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If a patient and dentist elect to extract Tooth #30, sectioning of the tooth will be required. The dentist should be aware of which of the following furcations on this tooth?
- One - Two, mesial and distal - Two, facial and lingual - Three, mesial distal and facial - Three, facial mesial and lingual |
Two, facial and lingual
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If the mandibular right posterior teeth are extracted, then the maxillary right posterior teeth will likely show signs of:
- attrition - abfraction - ankylosis - mesial drift - supraeruption |
supraeruption
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Which of the following are the last primary teeth to erupt?
- Maxillary canines - Mandibular canines - Mandibular first molar - Maxillary second molars - Mandibular second molars |
Maxillary second molars
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Which of the following is the correct sequence of dental tissues from softest to hardest?
- Dentin, cementum, enamel - Cementum, dentin, enamel - Dentin, enamel, cementum - Cementum, enamel, dentin |
Cementum, dentin, enamel
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The crown of which premolar is wider faciolingually than mesiodistally, and has two cusps that are approximately equal in height?
- Maxillary first - Mandibular first - Maxillary second - Mandibular second |
Maxillary second
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In the intercuspal position, the lingual cusp of a mandibular first premolar usually occludes:
- with the mesial marginal ridge of the maxillary second premolar and the distal marginal ridge of the first premolar - in the lingual embrasure between maxillary canine and first premolar - with the lingual surface of the maxillary first premolar - in the lingual embrasure between maxillary premolars - with no maxillary tooth |
with no maxillary tooth
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Through which of the following groove of the mandibular first molar does the maxillary mesiolingual cusp pass in a lateral excursive movement on the working side?
- Facial - Lingual - Central - Distofacial |
Lingual
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In an ideal occlusion, the facial cusps of the posterior mandibular teeth oppose which landmark of the maxillary dentition?
- Facio occlusal line - Central fossa aline - Linguo occlusal line - Curve of Spee - Curve of Wilson |
Central fossa line
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The upper compartment of the temporomandibular joint is that space between the:
- condylar head and the disc - inferior and superior retrodiscal lamina - retrodiscal tissue and capsular ligament - disc and the articular fossa and eminence |
disc and the articular fossa and eminence
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If a maxillary first molar has a fourth pulp canal, it is located in which of the following roots?
- Mesiofacial - Distofacial - Palatal - Fourth |
Mesiofacial
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Which of the following represents the general crown form of canines, as viewed from the labial aspect?
- Hexagonal - Triangular - Rhomboidal - Pentagonal - Diamond shaped |
Pentagonal
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On the crown of the maxillary canine, the height of contour is normally located in the cervical third of which of the following surfaces?
- Labial - Lingual - Both labial and lingual - Neither labial nor lingual |
Both labial and lingual
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Which of the following surfaces of a tooth is always next to an adjacent tooth?
- Distal - Facial - Palatal - Occlusal - Proximal |
Proximal
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The protrusive pathway of the mandibular cusps on the maxillary posterior teeth is toward the:
- mesial - facial - distal - lingual |
mesial
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The non working pathway of the maxillary cusps on the mandibular posterior teeth is toward the:
- distofacial - distolingual - mesiofacial - mesiolingual |
distofacial
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When compared to the maxillary central incisor, the maxillary canine normally exhibits which of the following?
- Shorter root - Wider crown mesiodistally - Thicker crown labiolingually - Longer crown incisogingivally - Shorter crown and shorter root length |
Thicker crown labiolingually
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Which of the following teeth have proximal contact areas at approximately the same levels cervicoincisally, or cervico occlusally, on the mesial and the distal?
- Maxillary central incisors - Mandibular central incisors - Maxillary canines - Mandibular canines |
Mandibular central incisors
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In the intercuspal position, the facial aspect of the mesial cusp ridge of a mandibular canine opposes which of the following maxillary structures?
- DL of a canine - DF of a canine - ML of a lateral incisor - DL of a lateral incisor - DL of a central incisor |
DL of a lateral incisor
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For an amalgam restoration, it will be most difficult to obtain close matrix-band adaptation on which of the following surfaces?
- Mesial of a maxillary first premolar - Distal of a maxillary first premolar - Mesial of a maxillary second premolar - Distal of a mandibular second premolar - Mesial of a mandibular first molar |
Mesial of a maxillary first premolar
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From an occlusal view, the arrangement of permanent teeth of the maxillary and mandibular arches are parabolic in shape. In one segment of the dentition, however, four teeth are aligned in a straight line. In what region is this segment located?
- Maxillary anterior - Maxillary posterior - Mandibular anterior - Mandibular posterior |
Mandibular posterior
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A posterior tooth has a faciolingual crown dimension greater than its mesiodistal crown dimension. In addition, it has two roots. This tooth is most likely a:
- maxillary first premolar - mandibular first premolar - mandibular second premolar - mandibular first molar - maxillary second molar |
maxilary first premolar
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Which primary molar typically has a transverse ridge, an oblique ridge, and a distolingual groove?
- Maxillary first - Maxillary second - Mandibular first - Mandibular second |
Maxillary second
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In the sagittal plane, which of the following represents the thickest section of the articular disc?
- Anterior border - Posterior border - Bilaminar zone - Intermediate zone - Retrodiscal area |
Posterior border
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Which of the following anterior teeth exhibits the most deviation in crown morphology?
- Maxillary central incisor - Maxillary lateral incisor - Mandibular lateral incisor - Maxillary canine - Mandibular canine |
Maxillary lateral incisor
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Which of the following periodontal ligament fibers provide the major support to the tooth during function?
- Apical - Oblique - Horizontal - Alveolar crest - Interradicular |
Oblique
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Which premolar poses the greatest problem when root canal therapy or extraction are being considered?
- Mandibular first - Mandibular second - Maxillary first - Maxillary second |
Maxillary first
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Which of the following ranks the roots of the maxilary first molar in order from largest to smallest?
- Palatal, mesiobuccal, distobuccal - Palatal, distobuccal, mesiobuccal - Mesiobuccal, palatal, distobuccal - Distobuccal, mesiobuccal, palatal |
Palatal, mesiobuccal, distobuccal
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In an ideal intercuspal relation, which of the following maxillary cusps will oppose the mesiofacial groove of the mandibular first molar?
- Facial cusp of the second premolar - Mesiofacial cusp of the first molar - Distofacial cusp of the firstmolar - Mesiolingual cusp of the first molar - Distolingual cusp of the first molar |
Mesiofacial cusp of the first molar
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When proximal surfaces of adjacent teeth diverge from an area of contact, an embrasure is formed:
- lingually only - lingually and facially only - lingually and occlusally only - lingually, facially, occlusally, and cervically |
lingually, facially, occlusally, and cervically
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The pulp chamber of a mature tooth contains:
- cells that continue to form primary dentin - an enamel lining for thermal protection - blood vessels and nerves - cementoblasts - ameloblasts |
blood vessels and nerves
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Between which of the followign teeth int he primary dention is the mandibular "primate" space usually found?
- Central incisors - Central and lateral incisors - Lateral incisor and canine - Canine and first molar - First and second molars |
Canine and first molar
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During a lateral movement of the mandible, the articular disc is tightly attached to the head of the condyle by which of the following ligaments?
- Superior retrodiscal - Inferior retrodiscal - Sphenomandibular - Stylomandibular - Collateral |
Collateral
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Which of the following teeth has its distal proximal contact area located entirely in the incisal or the occlusal one-third?
- Maxillary canine - Mandibular canines - Maxillary lateral incisor - Mandibular lateral incisor - Mandibular second premolar |
Mandibular lateral incisor
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Which of the following teeth is most likely to have a bifurcated root?
- Maxillary central incisor - Maxillary lateral incisor - Mandibular lateral incisor - Maxillary canine - Mandibular canine |
Mandibular canine
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The occlusal table of any posterior tooth makes up what percent of the total buccolingual dimension of the tooth?
- 25 to 35 percent - 40 to 50 percent - 55 to 65 percent - 70 to 80 percent |
55 to 65 percent
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How many pulp horns would be expected on a newly erupted Tooth #18?
- 2 - 3 - 4 - 5 |
4
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In which of the following areas of a healthy mouth is the alveolar process the thinnest?
- Lingual to the maxillary central incisors - Facial to the mandibular central incisors - Lingual to the maxillary canines - Lingual to the mandibular first molars - Facial to the maxillary second molars |
Facial to the mandibular central incisors
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On which of the following surfaces of permanent teeth is pit and fissure caries most likely to occur?
- Facial surfaces of maxillary first molars - Lingual surfaces of maxillary first molars - Facial surfaces of mandibular first premolars - Lingual surfaces of mandibular first molars - Proximal surfaces of mandibular incisors |
Lingual sirfaces of maxillary first molars
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When in its proper position relative to the plane of occlusion, the crown of a mandibular second molar inclines:
- distally and facially - mesially and facially - mesially and lingually - distally and lingually |
mesially and lingually
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In an ideal intercuspal realtion, which of the following maxillary teeth have single antagonists?
- Central incisors - Lateral incisors - First premolars - First molars - Third molars |
Third molars
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Which of the following represents the structure on the crown of a maxillary canine which is located immediately to the mesial of the mesiolingual fossa?
- Lingual ridge - Mesial marginal ridge - Distal marginal ridge - Distolingual fossa - Mesioal developmental groove |
Mesial marginal ridge
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The epithelial attachment is always an actual part of the tooth's:
- anatomical crown - clinical crown - gingival line - cervical line - periodontium |
periodontium
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The dentition of a normally developed 6.5-year-old child usually consists of which of the following teeth?
- 8 primary and 8 permanent - 10 primary and 10 permanent - 18 primary and 6 permanent - 20 primary |
18 primary and 6 permanent
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Which of the following represents the movement of a tooth through the surrounding tissue so that the clinical crown gradually appears longer?
- Eruption - Attrition - Mastication - Exfoliation - Longitudinal development |
Eruption
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In a protrusive movement, the maxillary left central incisor can potentially come in contact with which of the following mandibular teeth?
- #22 and #23 - #23 and #24 - #24 and #25 - #25 and #26 |
#23 and #24
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Which primary molar has a crown somewhat resembling a permanent premolar, but the rot form is typical of a permanent molar?
- Maxillary first - Maxillary second - Mandibular first - Mandibular second |
Maxillary first
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Which of the following plays the greatest role in disoccluding the posterior teeth in lateroprotrusive movements?
- Anterior guidance - Posterior guidance - Bennett side shift - Intercondylar distance |
Anterior guidance
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Which of the following represents the earliest age by which the roots of the maxillary first premolar are completely formed?
- 8 to 9 years - 10 to 11 years - 12 to 13 years - 14 to 15 years |
12-13 years
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Viewed from the occlusal, the basic coronal outline of a mandibular second premolar is:
- square - circular - rhomboidal - pentagonal - rectangular |
pentagonal
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Which of the following best describes the location of the cervical line on a mandibular lateral incisor?
- On the distal, it is more apical than on the mesial - On the lingual, it is more incisal than on the facial - On the mesial, it is more apical than on the distal - On the facial, it is more apical than on the lingual - On the facial and the lingual, it is at the same level |
On the distal, it is more apical than on the mesial
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Ligaments associated with the TMJ serve to:
- inhibit the normal masticatory cycle - protect surrounding and supporting tissues from damages - assist musculature in producing movement - allow for retrusive movement to occue - provide elastic potential to allow for border movements |
protect surrounding and supporting tissue from damages
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From a facial view, where would the cementoenamel junction be most apically positioned on the crown of a primary mandibular first molar?
- Mesial one third - Middle one third - Distal one third - Equally positioned in all thirds |
Mesial one third
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Enamel rods in a primary tooth extend:
- from the dentinoenamel junction apically in the cervical third of the crown - from the dentinoenamel junction occlusally in the cervical third of the crown - in the same direction as in a permanent tooth in the cervical third, but not in the incisal or occlusal thirds of the crown - in a diffused and gnarled manner in the cervical third of the crown |
from the dentinoenamel junction occlusally in the cervical third of the crown
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Which of the following molars has the largest mesiodistal measurement of its crown?
- Maxillary first - Mandibular first - Maxillary second - Mandibular second |
Mandibular first
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Which of the following teeth would most likely be congenitally absent?
- Maxillary central incisor - Mandibular central incisor - Maxillary lateral incisor - Mandibular lateral incisor - Maxillary canine |
Maxillary lateral incisor
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Which of the following describe the proximal contact relationship between a maxillary central incisor and a maxillary lateral incisor?
- Contact is offset to the lingual - Contact is centered incisocervically - Lingual embrasure is larger than the facial embrasure - Incisal embrasure is the largest of all the embrasures |
Lingual embrasure is larger than the facial embrasure
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The crown of a mandibular lateral incisor, compared to the crown of a mandibular central incisor in the same mouth, is best described as:
- wider mesiodistally - narrowed mesiodistally - more symmetrical - having a smoother lingual surface |
wider mesiodistally
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Which of the following characteristics of a mandibular first molar distinguished this tooth from a mandibular second molar?
- Number of roots - Number of lingual cusps - Presence of a lingual groove - Position of the lingual cusps - Number of developmental grooves |
Number of developmental grooves
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When compared with the incisal embrasure between the maxillary central and lateral incisors, the incisal embrasure between the maxillary central incisors is:
- large - smaller - the same size - determined by the position of the epithelial attachment - determined by the height of curvature of the cervical line |
smaller
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From the facial view, which premolar has a mesial cusp ridge longer than its distal cusp ridge?
- Maxillary first - Maxillary second - Mandibular first - Mandibular second |
Maxillary first
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Which of the following characteristics is common to maxillary first and second premolars?
- The lingual cusp tip is offset to the mesial - The lingual cusp tip is offset to the distal - The facial and lingual cusps are equal in size and prominence - The mesial root concavity extends across the cervical line onto the cervical third of the crown - The lingual height of contour is in the cervical third of the crown |
The lingual cusp tip is offset to the mesial
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In a molar, where do root canals usually join the pulp chamber?
- At the level of the furcation - At varying levels, dependent upon age - Within the middle third of the crown - Within the cervical third of the crown |
Apical to the cementoenamel junction
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The lingual aspect of a mandibular first molar presents with:
- a lingual groove extending onto the lingual surface and ending in the cervical third of the crown - a large mesiolingual cusp and much smaller distolingual cusp - the lingual surface of each cusp possessing a slightly convex shape i the occlusal third - three lingual cusps - two lingual cusps |
the lingual surface of each cusp possessing a slightly convex shape in the occlusal third
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The transseptal group of periodontal fibers travel from one root to an adjacent root surface. This pathway occurs via the facial aspect of the alveolus.
- Both statements are true - Both statements are false - The first statement is true, the second is false - The first statement is false, the second is true |
The first statement is true, the second is false
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During an endodontic procedure on Tooth #21, clinical symptoms lead the dentist to suspect the presence of a second pulp canal. Which direction is the most likely location for the suspected canal?
- Facial - Distal - Lingual - Mesial |
Lingual
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When the posterior teeth are in a crossbite relationship, which of the following cusps are considered supporting cusps?
- Maxillary facial and mandibular facial - Maxillary facial and mandibular lingual - Maxillary lingual and mandibular facial - Maxillary lingual and mandibular lingual |
Maxillary facial and mandibular lingual
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The central pit of the maxillary first molar is formed at the bases of the triangular ridges of which cusps?
- Mesiobuccal, mesiolingual, and distobuccal - Mesiobuccal, mesiolingual, and distolingual - Mesiobuccal, distobuccal, and distolingual - Mesiolingual, distobuccal, and distolingual |
Mesiobuccal, mesiolingual, and distobuccal
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Which of the following grooves on a mandibular first premolar originates in an occlusal pit and extends onto a proximal surface?
- Mesiolingual developmental - Distolingual developmental - Mesial marginal - Linguogingival |
Mesiolingual developmental
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The physiologic rest position of the mandible is established when the:
- muscles of mastication are in tonic equilibrium - maxillary and mandibular teeth make the greatest occlusal contact - condyles are in their most retruded position - condyles are in their most protruded position |
muscles of mastication are in tonic equilibrium
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In an ideal intercuspal relation, the mesiolingual cusps of maxillary molars occlude with which of the following anatomic structures of mandibular molars?
- Mesial fossae - Distal fossae - Central fossae - Mesial marginal ridges |
Central fossae
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Which of the following structures calcifies first in an anterior tooth?
- Cingulum - Cervical ridge - Marginal ridge - Incisal ridge - Root apex |
Incisal ridge
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When compared to a maxillary first molar, the crown of a second molar normally exhibits a:
- larger distofacial cusp - shorter distolingual groove - greater mesiodistal crown width - greater occlusocervical crown width |
shorter distolingual groove
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Which of the following are the principal muscle fibers that retrude the mandible?
- Superficial masseter - Posterior belly of the digastric - Posterior fibers of the temporal - Posterior fibers of the internal pterygoid |
Posterior fibers of the temporal
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Excessive calcified tissue formation at the root apices is known as which of the following?
- Concrescence - Enamel pearls - Hypercementosis - Cemental pearls |
Hypercementosis
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In the midroot cross-section, which root of a first molar has the largest area?
- The distofacial of a maxillary - The mesiofacial of a maxillary - The lingual of a maxillary - The mesial of a mandibular - The distal of a mandibular |
The mesial of a mandibular
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Which of the following teeth usually has the steepest cusp inclines?
- Maxillary first premolar - Maxillary first molar - Mandibular second premolar - Mandibular first molar - Mandibular second molar |
Maxillary first premolar
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In the diagram of the envelope of motion, the maximum opening position is the most:
- centrally located - anterior - superior - posterior - inferior |
inferior
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The primary mandibular first molar normally exhibits which of the following?
- An oblique ridge - A facial pit - Three roots - A distal groove - A distal triangular fossa |
A distal triangular fossa
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When a patient moves from maximum intercuspal position to pace the anterior teeth into an edge-to-edge relationship, the condyles of the mandible have moved:
- backward - forward - downward - forward and backward - backward and downward |
forward and downward
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The third tooth form the midline normally erupts prior to the fourth tooth from the midline in:
- the mandibular arch of the primary dentition - the maxillary arch of the primary dentition - the mandibular arch of the permanent dentition - the maxillary arch of the permanent dentition |
the mandibular arch of the permanent dentition
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At what age is a primary maxillary canine usually exfoliated?
- 6 to 7 years - 8 to 9 years - 10 to 11 years - 12 to 13 years - 14 to 15 years |
10 to 11 years
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Which of the following groove on a maxillary first molar runs from the mesial pit to the central pit on the occlusal surface?
- Transverse of the oblique ridge - Distal oblique - Distolingual - Faciolingual - Central |
Central
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The maxillary lateral incisor is usually equal to or larger than the maxillary central incisor in which dimensions?
- Root width (faciolingually) - Crown width (mesiodistally) - Crown width (faciolingually) - Root length (cervicoapically) - Crown length (cervicoincisally) |
Root length (cervicoapically)
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Which of the following canines is the last anterior tooth to erupt and at what age does it erupt?
- Mandibular, 9 to 10 years - Maxillary, 9 to 10 years - Mandibular, 11 to 12 years - Maxillary, 11 to 12 years |
Maxillary, 11 to 12 years
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