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22 Cards in this Set
- Front
- Back
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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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In an ideal occlusion, the facial cusps of the posterior mandibular teeth oppose which landmark of the maxillary dentition?
Facio-occlusal line Central fossa line Linguo-occlusal line Curve of Spee Curve of Wilson |
Central fossa line
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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 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 ranks the roots of the maxillary 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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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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The occlusal outline of a mandibular first molar is usually similar to a
circle. square. rhomboid. pentagon. |
Pentagon
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The occlusal table of any posterior tooth makes up what percent of the total buccolingual dimension of the tooth?
25-35 percent 40-50 percent 55-65 percent 70-80 percent |
55-65 percent
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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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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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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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Viewed from the occlusal, the basic coronal outline of a mandibular second premolar is
square. circular. rhomboidal. pentagonal. rectangular |
pentagonal
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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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When compared with the incisal embrasure between the maxillary central and lateral incisors, the incisal embrasure between the maxillary central incisors is
larger. 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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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 |
Apical to the cementoenamel junction
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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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Some degree of protection for tips, cheeks, and tongue is afforded by the
contact of adjacent teeth. deflecting function of triangular ridges. facial and lingual heights of contour of the teeth. horizontal and vertical overlapping of the teeth |
horizontal and vertical overlapping of the teeth
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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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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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