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100 Cards in this Set
- Front
- Back
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Where is the buccal height of contourl on all posterior teeth?
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Gingival 1/3 (same as anteriors)
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Where is the lingual height of contour on all posterior teeth?
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Middle 1/3
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To what axis are the marginal ridges perpendicular to on all posterior teeth?
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Horizontal/long axis of the tooth
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To which direction(s) do all mandibular posterior crowns lean on their roots?
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They lean lingually and distally on their roots
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Which teeth do not taper towards the lingual in occlusal view?
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Maxillary 1st Molars
AND 3 cusp Mandibular 2nd Premolars |
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When is the initiation of calcification for Maxillary 1st Molars?
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Birth
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When is the completion of enamel of Maxillary 1st Molars?
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2.5-3 years
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When is the eruption of Maxillary 1st Molars?
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6-7 years
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When is the completion of root for Maxillary 1st Molars?
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9-10 years
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When is the eruption of Maxillary 2nd Molars?
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12-15 years
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When is the completion of root for Maxillary 2nd Molars?
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14-16 years
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When is the initiation of calcification for Maxillary 2nd Molars?
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2.5-3 years
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When is the completion of enamel for Maxillary 2nd Molars?
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7-8 years
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When is the completion of enamel for Maxillary 2nd Molars?
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12-16 years
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When is the initiation of calcification for Maxillary 3rd Molars?
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7-9 years
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When is the eruption of Maxillary 3rd Molars?
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17-21 years
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When is the completion of root for Maxillary 3rd Molars?
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18-25 years
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What are the functions of the Molars?
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Mastication of Food
Maintain vertical dimension of the face Keeps chin at proper distance from nose Minor role in aesthetics Maintains continuity within the dental arches keeping other teeth in alignment |
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In comparison to all other crowns, in what direction are molar crowns shorter?
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Shorter cervico-occlusally than all other crowns
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Which direction is larger in the crowns of mandibular teeth - mesiodistally or cervico-occlusally?
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Mesiodistal > Cervico-occlusal
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Which direction is larger in the crowns of maxillary teeth - mesiodistally or cervico-occlusally?
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Mesiodistal > Cervico-occlusal
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What is the curve of wilson?
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The lingual cusp tips are at a lower level than the buccal cusps in the mouth due to the lingual tilt of the root axis in the mandible and the lingual tilt of the crown on the root axis
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Which cusp tips are higher in molars - Buccal or lingual?
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Lingual cusps are higher than buccal when viewing extracted teeth with root axis held vertically
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Which tooth has the most equal Faciolingual and mesiodistal dimension of any maxillary posterior tooth?
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Maxillary 1st Molars
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Which tooth exhibits at nonfunctional 5 cusp called the cusp of Carabelli?
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Maxillary 1st Molars
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Which Maxillary tooth/teeth exhibits a distolingual groove?
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Maxillary 1st Molars
AND Maxillary 2nd Molars |
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How many triangular ridges does the Mesiolingual cusp have in Maxillary Molars have?
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The mesiolingual cusp has 2 triangular ridges
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Which molars exhibit oblique ridges?
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All maxillary molars
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Which teeth in entire dentition exhibit centered distal contact?
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Maxillary Lateral Incisors
Maxillary Canines Maxillary 1st Molars Maxillary 2nd Molars Mandibular 2nd Molars |
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Which tooth has the shortest occluso-cervical crown dimension in the entire dentition?
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Maxillary 3rd Molars
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Which tooth exhibits the greatest morphological variation of any tooth?
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Maxillary 3rd Molars
Mandibular 3rd Molars |
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Which Maxillary tooth has the shortest root?
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Maxillary 3rd Molars
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Which Maxillary tooth exhibits the most distal root inclination?
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Maxillary 3rd Molars
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When is the initiation of calcification in Mandibular 1st Molars?
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Birth
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When is the completion of enamel in Mandibular 1st Molars?
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2.5-3 years
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When is the eruption for Mandibular 1st Molars?
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6-7 years
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When is the completion of root for Mandibular 1st Molars?
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9-10 years
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When is the eruption for Mandibular 2nd Molars?
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11-13 years
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When is the completion of root for Mandibular 2nd Molars?
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14-15 years
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When is the completion of enamel for Mandibular 2nd Molars?
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7-8 years
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When is the initiation of calcification for Mandibular 2nd Molars?
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2.5-3 years
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When is the initiation of calcification for Mandibular 3rd Molars?
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8-10 years
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When is the completion of enamel for Mandibular 3rd Molars?
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12-16 years
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When is the eruption of Mandibular 3rd Molars?
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17-21 years
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When is the completion of root for Mandibular 3rd Molars?
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18-25 years
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Which tooth has the largest mesiodistal crown dimension in entire dentition?
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Mandibular 1st Molars
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Which Mandibular tooth has the largest faciolingual crown dimension
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Mandibular 1st Molars
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Which Mandibular molar has the largest occluso-cervical crown dimension?
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Mandibular 1st Molars
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How many facial cusps does the Mandibular 1st Molars exhibit?
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3 cusps
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Which molar has the longest root?
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Mandibular 1st Molars
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Which tooth has the greatest Mesio-distal root separation in entire dentition?
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Mandibular 1st Molars
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Which tooth has the greatest mesial root facio-lingual dimension?
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Mandibular 1st Molars
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Which mandibular molar exhibits a mesiofacial crown prominence?
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Mandibular 2nd Molars
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Which mandibular tooth has the smallest occluso-cervical crown dimension?
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Mandibular 3rd Molars
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Which mandibular tooth has the most bulbous crown form?
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Mandibular 3rd Molars
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Which mandibular tooth has the greatest distal root inclination
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Mandibular 3rd Molars
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Which mandibular tooth has the shortest root?
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Mandibular 3rd Molars
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Which molar strays away from the norm of tapering from mesial to distal?
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Maxillary 1st Molars with large distolingual cusps
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Which molar strays away from the norm of lingual convergence?
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Maxillary 1st Molars with large distolingual cusps
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What are the mesial and distal contact points for all molars?
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Mesial - Junction
Distal - Middle 1/3 |
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Which tooth is the largest and strongest teeth in each arch?
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Both Maxillary and Mandibular 1st Molars
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Where are 1st Molars located in the arch?
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They are located near the center of each arch, anteroposterioly
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Which tooth has the broadest occlusal surface?
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Both Maxillary and Mandibular 1st Molars
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What is the arch trait that distinguishes Maxillary from Mandibular molar roots?
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Maxillary - 3 roots
Mandibular - 2 roots |
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What is the outline shape of maxillary molars from occlusal view?
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Rhomboidal
OR Twisted parallelogram |
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What is the outline shape of mandibular molars from occlusal view?
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Rectangular shape
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Where are the acute angles on maxillary molars?
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Mesiobuccal and distolingual
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Where are the obtuse angles on maxillary molars?
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Mesiolingual and distobuccal
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What direction does the obtuse angle on maxillary molars travel?
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From mesiolingual to distobuccal
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How many lobes make up the Maxillary 1st Molars?
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4 lobes
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How many lobes make up the Mandibular 1st Molars?
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5 lobes
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Which root is banana shaped?
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Maxillary 1st molars have a banana shaped lingual root
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In which proximal view can you view the other root in Mandibular molars?
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From distal side, you can view the mesial root
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Which buccal root is shorter on Maxillary Molars?
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Distobuccal root is slightly shorter than mesiobuccal root
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Which arch has longer molar root trunks?
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Maxillary molar root trunks are longer than on mandibular molars
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How many fossae do Mandibular molars have?
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3 fossae
-large central -mesial triangular fossa -smallest distal triangular fossa |
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What are the major grooves on Mandibular 1st Molars?
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Mesiofacial
Distofacial Lingual |
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What cusps does the distofacial groove on Mandibular 1st Molars separate?
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The distal cusp and the distobuccal cusp
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How many fossae are on Maxillary Molars?
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4 fossae
-Large central -Mesial triangular fossa -Long distal fossa (like groove) -Smallest distal triangular fossa |
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What are the types of occlusal patterns found on Mandibular Molars?
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Type Y - Mandibular 1st
Type + - 4 cusp Mandibular 1st and Mandibular 2nd Type X - Mandibular 2nd |
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What is the occlusal outline shape of Mandibular 1st Molars?
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Pentagon shape
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Which tooth has the largest mesiodistal dimension of any tooth?
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Mandibular 1st Molars
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What is the order of cusp size from largest to smallest in Mandibular 1st Molars?
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Mesiobuccal > Mesiolingual > Distolingual > Distobuccal > Distal
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What is the order of cusp lengths from longest to shortest in Mandibular 1st Molars?
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Mesiolingual > Distolingual > Mesiobuccal > Distobuccal > Distal
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Which tooth exhibits a heart shaped occlusal outline?
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3 cusp Maxillary 2nd Molar
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What is the order of cusp size from largest to smallest in Maxillary 1st Molars?
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Mesiolingual > Mesiobuccal > Distobuccal > Distolingual
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Which tooth is the shortest of all teeth?
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Maxillary 3rd Molars
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Describe the occlusal table in Mandibular 3rd Molars?
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Narrow occlusal table
Buccal and lingual cusp tips are closer together More of the buccal surface can be seen from occlusal view |
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How many canals are in Mandibular molar roots?
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There are 3 canals
2 canals in mesial root 1 canal in distal root |
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What is the root lengths from longest to shortest in Maxillary Molars?
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Palatal > Mesiobuccal > Distobuccal
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Which tooth can develop Mulberry Molars due to congenital syphyllis?
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Maxillary 1st Molars
AND Mandibular 1st Molars |
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What shape is the buccal outline of Maxillary 1st Molars?
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Trapezoidal
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Which tooth roots curve to resemble a pair of pliers?
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Maxillary 1st Molars
MB curves distally DB curves mesially |
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Which marginal ridge is located higher occlusally - mesial or distal?
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MM ridge is located higher occlusally than DM ridge
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What happens to the root trunks as you progress posteriorly?
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The root trunks get progressively longer as your travel posteriorly
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What is the lingual root apex in line with in Maxillary 2nd Molars?
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In line with the disto-lingual cusp tip
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What is the occlusal crown outline of Mandibular 1st Molars?
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Hexagonal
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How many lobes do 3 cusp varieties of Maxillary 2nd and 3rd Molars develop from?
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They develop from 3 lobes
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All roots normally have one root canal except which teeth?
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Mesial roots of mandibular Molars
Mesiobuccal roots of maxillary molars |
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Which teeth have shorter lingual embrasures than facial embrasures?
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Maxillary 1st Molars
Some 3 cusp Mandibular 2nd Premolars |
