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162 Cards in this Set
- Front
- Back
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Shape of Maxillary Central Incisor - Labial View
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Trapezoidal or rectangular in shape.
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Maxillary Central Incisors are longer _____ than wide _____, but when compared to other permanent incisors, they are close to equal
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Longer Incisocervically
Wider mediodistally |
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Maxillary Central Incisors are _____ incisocervically than _____ mesiodistally, but...
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Longer incisocervically
Wider mesiodistally But may be closer to equal than any other permanent incisor. |
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What represents the division of the three labial lobes of maxillary central incisors in Labial view?
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The mesiolabial and distolabial developmental depressions makes the 3 labial lobes.
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For permenent maxillary central incisors, which side is more convex, distal or mesial?
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Distal is more convex than mesial
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Where are the contact areas of permanent maxillary central incisors?
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Mesial: Incisal 1/3 near incisal edge
Distal: Near junction of incisal 1/3 and middle 1/3 |
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Describe the mesioincisal angle for Maxillary Central Incisors.
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The mesioincisal angle is sharp.
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Describe the distoincisal angle for Maxillary Central Incisors.
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The distoincisal angle is rounded.
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Which tooth has the longest crown in the maxillary arch?
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Maxillary Central Incisors.
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What is the shape of the Maxillary Central Incisor in Lingual View?
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Trapezoidal/rectangular in shape
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Location of cingulum in Permanent Maxillary Central Incisors?
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Cingulum is located in the cervical third, distally.
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Shape of Maxillary Central Incisors - Proximal View
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Triangular in shape
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Where does the incisal edge of Maxillary Central Incisors lie?
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It lies on the long axis of the tooth.
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Define: Incisal Edge
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The cutting edge of the incisors
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Where is the height of contour of Maxillary Central Incisors in Proximal View?
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Facially: Located in the cervical 1/3 and flattens out in the incisal 1/3.
Lingually: Located in the cervical 1/3 due to bulging of cingulum. |
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What is the area of greatest convexity on the lingual aspect of Maxillary Central Incisors?
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The cervical 1/3 due to prominence of the cingulum.
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Which tooth exhibits the greatest depth of curvature of any tooth surface in the mouth - mesial view cervical aspect?
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Maxillary Central Incisors
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Shape of Maxillary Central Incisor from Incisal Aspect
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Triangular
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Which incisor tooth has the widest incisal edge mesiodistally
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Maxillary Central Incisors
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Which marginal ridge is longer in Maxillary Central Incisors?
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The mesial marginal ridge is longer because the cingulum is offset to the distal
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What is the root:crown length of the Maxillary Central Incisors?
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The root length is 1:1.5 times the length of the crown.
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Which incisor has the poorest root:crown ration?
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Maxillary Central Incisors. It is 1:1.5 root to crown.
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What is the function of Maxillary Central Incisors?
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Cutting, shearing food
More profound role in aesthetics and phonetics than the posterior dentition. |
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When does Calcification begin for Maxillary Central Incisors?
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3-4 months
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When does Calcification end for Maxillary Central Incisors?
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4-5 years old
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When does Eruption occur for Maxillary Central Incisors?
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7-8 years old
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When does Root Completion occur for Maxillary Central Incisors?
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3 years following eruption
or at 10 years old. |
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What is the root shape of Maxillary Central Incisors from cervical to apical?
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It goes from conical near the cervical edge to ovoid towards the apical edge
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What is the shape of Maxillary Central Incisors root tips?
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It is blunt with NO distal deflection
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Which CEJ curvature is greater for Maxillary Central Incisors -
Facial vs Lingual Mesial vs Distal |
Facial > Lingual
Mesial > Distal |
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Where is the incisal edge located in relation to the root bisecting axis?
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The incisal edge is located LABIAL to the axis, due to its wear on the lingual during occlusion with Mandibular Incisors
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Where are arching imbrication lines found in Maxillary Central Incisors?
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Cervical 1/3 of Facial Aspect
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Which line angle is more rounded in the Incisal aspect of Maxillary Central Incisors?
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The distofacial angle is more rounded than the mesiofacial line angle.
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Which tooth has the greatest mesial CEJ curvature of the entire dentition?
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Maxillary Central Incisors
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Which neighboring teeth has their mesial surfaces in contact with each other?
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All 4 Maxillary and Mandibular Central Incisors
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How do you distinguish Right from Left in Maxillary Central Incisors?
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Incisal Angle: Mesio-incisal angle is shaper than Disto-incisal angle
CEJ Curvature: Mesial is greater than Distal |
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How do you distinguish a Maxillary Central Incisors from Mandibular?
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Maxillary Central Incisors has:
Larger crown, Shorter root (therefore smaller crown:root ratio), Greater depth of CEJ curvature, Smoother lingual anatomy |
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Which tooth is the second most likely to have an anomaly?
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Maxillary Lateral Incisors.
They are peg shaped |
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Maxillary Lateral Incisors are longer _____ than _____.
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Longer incisocervically than mesiodistally.
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Maxillary Lateral Incisors are _____ incisocervically than mesiodistally.
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Longer
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How is the Maxillary Lateral Incisors a more rounded tooth than the Maxillary central Incisors?
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It is convex more mesiodistally and incisalcervically
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Which incisor has very prominent marginal ridges, fossa and cingulum?
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Maxillary Lateral Incisors
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Which incisor can you find linguocervical groove and fissure?
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Maxillary Lateral Incisors
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Where is the height of contour located in Maxillary Lateral Incisors - Lingual View?
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Located in cervical 1/3
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When does Calcification begin for Maxillary Lateral Incisors?
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1 year old
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When does Calcification end for Maxillary Lateral Incisors?
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4-5 years old
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When does Eruption occur for Maxillary Lateral Incisors?
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8-9 years old
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When does Root Completion occur for Maxillary Lateral Incisors?
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3 years following eruption
or 11 years old |
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What is the first most common tooth with anomalies and variation in development and form
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Maxillary 3rd Molars
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What is the crown shape of Maxillary Lateral Incisors - Facial Aspect?
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Trapezoidal
It is greater Incisalcervically than Mesiodistally |
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What is the crown shape of Maxillary Lateral Incisors - Lingual Aspect?
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Trapezoidal
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What is the crown shape of Maxillary Lateral Incisors - Proximal Aspect?
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Triangular Wedge
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What is the root shape of Maxillary Lateral Incisors going cervically to apical?
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Goes from conical shape at cervix to ovoid shape towards apex
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What is the shape of Maxillary Lateral Incisors root tips?
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The root tips are pointy WITH distal deflection
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What is the CEJ curvature of Maxillary Lateral Incisors -
Facial vs Lingual Mesial vs Distal |
Facial > Lingual
Mesial > Distal |
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Where is the incisal edge in relation to the root bisecting axis for Maxillary Lateral Incisors?
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The incisal edge is located LABIAL to the axis, due to its wear on the lingual during occlusion with Mandibular incisors
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Where is the Mesial Contact point of Maxillary Lateral Incisors?
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Located at junction of middle and incisal 1/3
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Where is the distal contact point located for Maxillary Lateral Incisors?
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Located at junction of middle and incisal 1/3.
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Where is the height of contour of facial and lingual aspects in the proximal view?
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Both are located in cervical third.
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Where is the cingulum located in Maxillary Lateral Incisors?
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It is located CENTRAL in cervical third
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What is the shape of Maxillary Lateral Incisors - Incisal View
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Round
It is more rounded than Maxillary Central Incisors triangular shape. |
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How do you distinguish right from left Maxillary Lateral Incisors?
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Incisal Line Angle: Mesioincisal angle is sharper than distoincisal angle,
Distal deflection of root, CEJ Curvature: Mesial > Distal |
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How to you distinguish Maxillary Lateral Incisors from Maxillary Central Incisors?
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Maxillary Lateral Incisors:
Smaller crown Longer root (Therefore larger crown:root ratio) More general roundness Exaggerated lingual anatomy Lesser depth of CEJ curvature |
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When does Calcification begin for Mandibular Central Incisors?
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3-4 months
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When does Calcification end for Mandibular Central Incisors?
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4-5 years old
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When does Eruption occur for Mandibular Central Incisors?
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6-7 years old
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When does Root Completion occur for Mandibular Central Incisors?
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3 years following eruption
or 9 years old |
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What are the most bilaterally symmetrical teeth with the least variation in development and form in the entire dentition?
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Mandibular Central Incisors
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What is the crown shape of Mandibular Central Incisors in Facial View?
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Trapezoidal - close to rectangle.
It is longer incisocervically than mesiodistally |
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What is the crown shape of Mandibular Central Incisors in Proximal view?
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Triangular wedge
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What is the root shape of Mandibular Central Incisors going from cervical to apical?
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It starts conical and goes to ovoid towards the apex
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What is the shape of Mandibular Central Incisors root tips?
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They are pointy WITH distal deflection
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What is the CEJ Curvature of Mandibular Central Incisors -
Facial vs Lingual Mesial vs Distal |
F > L
M > D |
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Where is the incisal edge located for Mandibular Central Incisors in relation to the root bisecting axis?
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The incisal edge is located LINGUAL to the axis, to the the wear on the labial side during occlusion with Maxillary incisors
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Describe the incisal line angles for Mandibular Central Incisors
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Mesioincisal and distoincisal angles are very similar sharp shape, and are similar in height.
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Where is the mesial contact point located for Mandibular Central Incisors?
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Incisal 1/3 at incisal angle
Same as distal |
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Where is the distal contact point located for Mandibular Central Incisors?
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Incisal 1/3 at incisal angle
Same as mesial |
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Describe the crown outline for Mandibular Central Incisors
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The outline is very straight.
The mesial crown outline equals the distal crown outline |
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Where is the cingulum located in Mandibular Central Incisors
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The cingulum is located CENTRAL in the cervical third
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What is the shape of the crown of Mandibular Central Incisors?
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It is a diamond shaped crown with bilateral symmetry
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What are the only anterior teeth that occlude with one tooth in the opposing arch?
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Mandibular Central Incisors
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What are the smallest teeth in all dimensions of the entire dentition
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Mandibular Central Incisors
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What are the first permanent teeth to erupt?
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Mandibular Central Incisors
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How do you distinguish right from left Mandibular Central Incisors?
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Distal deflection of root,
CEJ curvature - M > D, Developmental root depressions - D > M |
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How do you distinguish Mandibular Central Incisors from Lateral?
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Mandibular Central Incisors are bilaterally symmetrical
They are smaller than laterals |
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When does Calcification begin for Mandibular Lateral Incisors?
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3-4 months
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When does Calcification end for Mandibular Lateral Incisors?
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4-5 years old
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When does Eruption occur for Mandibular Lateral Incisors?
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7-8 years old
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When does Root Completion occur for Mandibular Lateral Incisors?
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3 years following Eruption
or 10 years old |
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What is the major anomaly found in Mandibular Lateral Incisors?
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2 pulp canals
1 root |
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What is the crown shape of Mandibular Lateral Incisors - Facial View?
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Trapezoidal - close to rectangular
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What is the crown shape of Mandibular Lateral Incisors - Proximal View?
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Triangular Wedge
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What is the root shape of Mandibular Lateral Incisors from cervical to apical?
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Root shape goes from conical to ovoid
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What is the shape of Mandibular Lateral Incisors root tips
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Pointy with distal deflection
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Where is the mesial contact area for Mandibular Lateral Incisors?
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Incisal 1/3 near incisal angle
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Where is the distal contact area for Mandibular Lateral Incisors?
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Incisal 1/3 but more cervical
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Describe the incisal edge slope of Mandibular Lateral Incisors.
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It slopes downward from mesial to distal
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Describe the incisal edge slope of Mandibular Central Incisors.
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There is no slope. It is straight from mesial to distal.
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Where is the cingulum in Mandibular Lateral Incisors
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Distally in the cervical third
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Which anterior tooth exhibits a distal twist of the crown on its root axis?
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Mandibular Lateral Incisors
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Which view allows you to see more lingual anatomy of Mandibular Lateral Incisors - Mesial or Distal?
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Mesial view allows you to see more lingual anatomy due to distal twist of the crown on its root axis.
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Describe the developmental root depressions of Mandibular Lateral Incisors
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Distal > Mesial
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Describe the shape of the crown of Mandibular Lateral Incisors from Incisal View
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Diamond shape
NO bilateral symmetry F-L > M-D |
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Why does the Mandibular Lateral Incisors exhibit a distal twist?
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To follow the curvature of the dental arch
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How do you distinguish right from left in Mandibular Lateral Incisors
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Incisal edge slopes downwards from mesial to distal,
Mesioincisal angle is sharper than Distoincical angle Distal Twist of crown Distal Developmental root depressions > Mesial CEJ Curvature: M >D |
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How do you distinguish Mandibular Lateral Incisors from Mandibular Central Incisors?
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Mandibular Lateral Incisors are Larger in size than Centrals
Exhibit incisal edge slope Longer and wider root |
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Function of Canines
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Hybrid anterior and posterior mastication functions
Cosmetic value Supports shape of face and lips Self-cleansing Canine guidance Canine eminence |
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Define Canine Guidance
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Guides the teeth into intercuspal occlusion, relieving posterior teeth during lateral excursions
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Define Canine Eminence
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Extra anchorage in the Maxillary bone providing superior stability
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How many developmental lobes make up Maxillary Canines
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4 lobes
3F + 1L |
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When does Calcification begin for Maxillary Canines
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4-5 months
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When does Calcification end for Maxillary Canines
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6-7 years old
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When does Eruption occur for Maxillary Canines
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11-12 years old
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When does Root Completion occur for Maxillary Canines
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3 years after eruption
or 13-15 years old |
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Describe the shape of the crown of Maxillary Canines in Facial View
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Pentagon
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Describe the shape of the crown of Maxillary Canines in Proximal View
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Triangular Wedge
Extremen Facial-Lingual thickness |
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Describe the root shape of Maxillary Canines from cervical to apical
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Conical to ovoid
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Describe the shape Maxillary Canines root tips
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Blunt WITH distal deflection
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Where is the incisal edge located of Maxillary Canines in relation to root-bisecting axis
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Located labial to axis, due to its wear on the lingual during occlusion with Mandibular canines
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Where is the Mesial Contact point of Maxillary Canines
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Junction of middle and incisal 1/3
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Where is the Distal contact point of Maxillary Canines
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Middle 1/3
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Describe the mesial and distal crown outlines from Facial view of Maxillary Canines
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Mesial: Crown outline is straight
Distal: Crown outline bulges out |
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Describe the incisal slopes of Maxillary Canines
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Mesial incisal slope shorter
Distal incisal slope longer |
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Describe the orientation of the cusp tip to root in Maxillary Canines
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Cusp tip is centered over the root
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Where is the cingulum located in Maxillary Canines
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Centrally in cervical 1/3
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Describe the developmental root depressions of Maxillary Canines
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Distal > Mesial
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Which anterior tooth has the greatest Faciolingual vs mesiodistal dimension
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Maxillary Canines
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Describe the shape of Maxillary Canines in Incisal View
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Diamond shaped crown
Faciolingual is longer than Mesiodistal |
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Which anterior tooth exhibits a Distal bulge
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Maxillary Canines
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Which anterior tooth exhibits a Distal Pinch of the crown's facial surface
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Maxillary Canines
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Which roots are ribbon shaped?
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Mandibular Incisors because cross section is wider faciolingually
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Which anterior tooth is the least likely to have more than one canal
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Maxillary Central Incisors
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Which canine has a more pronounce labial ridge?
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Maxillary Canines
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Which anterior tooth exhibits a lingual ridge?
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Maxillary Canines and Mandibular Canines
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Which tooth has the longest root length in the entire dentition?
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Maxillary Canines
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Which tooth has the longest overall crown:root length in entire dentition?
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Maxillary Canines
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Which anterior tooth exhibits canine eminence?
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Maxillary Canines
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How do you distinguish right from left in Maxillary Canines?
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Incisal line angles: Mesioincisal angle is shorter than distoincisal,
Distal bulge seen from labial view, Distal pinch of facial surface seen from incisal view |
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How do you distinguish Maxillary Canines from Mandibular canines?
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Maxillary Canines
Erupts AFTER premolars Shorter crown than mandibular - called squatty, Longer root than mandibular, Labial cusp tip, Central cingulum, canine eminence present |
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When does Calcification begin for Mandibular Canines?
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4-5 months
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When does Calcification end for Mandibular Canines
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6-7 years old
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When does Eruption occur for Mandibular Canines
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9-10 years old
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When does Root Completion occur for Mandibular Canines
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12-14 years old
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Which anterior tooth can be found with the anomaly of 2 roots?
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Mandibular Canines
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Describe the crown shape of Mandibular Canines in Facial View
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Pentagon
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Describe the shape of Mandibular Canines root tips
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Blunt with NO mesial delfection
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Where is the mesial contact points for Mandibular Canines
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Incisal 1/3 below mesioincisal angle
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Where is the distal contact point for Mandibular Canines
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Junction of middle and incisal 1/3
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Which canine exhibits prominent Mesial, distal, labial ridges and well defined roots and pits
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Maxillary Canines
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Describe the shape of Mandibular Canines developmental root depressions
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Distal > Mesial
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Which canine exhibits a S-shaped lingual outline more prominently?
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Maxillary Canines
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Which anterior tooth exhibits a C-shape arc with the labial root outline
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Mandibular Canines
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Which tooth has the longest crown length in the entire dentition?
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Mandibular Canines
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Describe the crown outline of Mandibular Canines from Labial view.
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Mesial crown outline is straight and flush with Mesial root outline
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How do you distinguish right from left in Mandibular Canines?
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Incisal angle: Mesioincisal angle is shorter than distoincisal angle,
Crown outline: Mesial outline is straight and flush with Mesial root outline from Labial view, C-Shape of Facial crown outline that matches Facial root outline from Proximal view. |
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How do you distinguish Mandibular Canines from Maxillary?
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Mandibular Canines
Erupts BEFORE premolars Longer crown than Maxillary Shorter root than Maxillary Lingual cusp tip Distally located cingulum No Canine eminence |
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Which anterior tooth exhibits rare mesial deflection?
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Mandibular Canines
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Which canine has the arch trait where the mesial side of the crown does not project beyond the root outline
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Mandibular Canines
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Which canine exhibits the mesial half of facial outline to be convex and the distal outline to be concave - Incisal view
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Maxillary Canines
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Which anterior tooth has an oblong shape from incisal view
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Mandibular Canines
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Define: Perikymata
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Rounded extensions of enamel on the incisal ridge of recently erupted incisors
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Define: Marginal ridges
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Mesial and distal terminations of the lingual surface
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