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40 Cards in this Set
- Front
- Back
what incisal feature is missing from primary incisors but is seen in unworn incisal edges of permanent incisors?
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mamelons
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for a maxillary central arrange M-D, F-L, and I-C dimensions from greatest to smallest
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MD>IC>FL
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which anterior tooth has a M-D crown width greater than I-C crown height?
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maxillary central*
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How does the maxillary central incisor compare to the permanent central incisor?
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- M and D outlines exhibit more convexity than permanent
- Cingulum more prominent - Lingual ridge a possibility - Lingual fossa deeper - Marginal ridges more prominent - root is longer relative to crown height |
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in which anterior teeth are facial developmental depressions rare?
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all the anteriors
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for the anterior teeth which way is the root deflected?
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facially; mandibular lateral root is deflected facially and distally
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for maxillary anteriors, where is the incisal edge located in comparison to the mid-root axis?
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slightly facially
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for mandibular anteriors, where is the incisal edge located in comparison to the mid-root axis?
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in line w/ it
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for the anterior teeth, the lingual CE line is located more _______ than the facial
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apical
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maxillary lateral is similar to central except for what?
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- crown is narrower M-D than I-C
- has more incisal angle rounding - more prominent marginal ridges (deeper fossa) - I-C>M-D>F-L |
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what is unique about the dimensions of the maxillary canine?
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the M-D, F-L, and I-C dimensions are all nearly the same*
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what is unique about the M and D heights of contour for the maxillary canine?
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they are at the same level*
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compare the relative lengths of the mesial and distal cusp ridges of the maxillary canine
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M cusp ridge longer than D cusp ridge* - cusp tip offset distally
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what lingual anatomy does the maxillary canine show?
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cingulum and lingual ridges prominent - ML and DL fossa
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what tooth does the maxillary 1st molar resemble?
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premolar, does not resemble any other molar*
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how many sides does the maxillary 1st molar have from an occlusal view?
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5
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is the maxillary 1st molar wider M-D or F-L?
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F-L
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in the maxillary 1st molar, the ML and DB cusps are connected by what?
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oblique ridge
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facial CE line of the maxillary and mandibular 1st molar has depth of curvature towards ______
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mesial*
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which 2 cusps are prominent and which 2 are diminished in a primary maxillary 1st molar? which of the 4 cusps might not be evident at all?
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MB and ML cusps are the largest; DL and DB are more diminished and the DL might be greatly diminished
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in the maxillary 1st molar, a transverse ridge connects what?
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MB and ML cusps
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how many fossa and pits does the maxillary 1st have?
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3 - mesial>central>distal
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describe the roots of the maxillary 1st molar
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- slender and flared
- no root trunk (or very small) - 3 (largest to smallest: L, MB, DB) |
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maxillary 2nd molar resembles what permanent tooth?
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maxillary 1st molar
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which tooth has a cusp of carabelli?
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maxillary 2nd molar
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is the maxillary 1st or 2nd molar larger?
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2nd
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how do the F-L dimensions of the mandibular central compare with the permanent
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relatively greater
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compare the M and D sides of the mandibular central
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symmetrical - evenly convex
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mandibular lateral incisor is similar to the mandibular central except for what?
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- not as symmetrical
- DI corner more rounded, slight twist to lingual - cingulum bulges towards distal - marginal ridges more prominent, deeper fossa than central |
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mandibular canine is similar to the maxillary except for?
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- much narrower F-L
- M-D narrower than I-C - M cusp ridge shorter than D cusp ridge |
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which tooth has a crown unlike any other primary or permanent tooth?
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mandibular 1st molar* - wider M-D than F-L
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describe the roots of the mandibular 1st molar
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2 - M and D (mesial much longer and wider); F and L root surfaces parallel
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compare the cusps of the mandibular 1st molar
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largest to smallest: MB, ML, DB, DL
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IN the mandibular 1st molar the mesial outline of the crown is _______ and the Mesial HOC is more _______ than the distal
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straight; cervical*
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which tooth has a prominent facial cervical ridge
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mandibular 1st
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T or F The mandibular 1st has a prominent mesial transverse ridge
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T *
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in the mandibular 1st molar, is the occlusal table wider mesially or distally?
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distally
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Describe the fossae and pits of the mandibular 1st molar
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3 fossae: mesial, central, distal (?)
2 pits: mesial and central |
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T or F The mandibular 1st molar does not have a MB bulge
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F
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mandibular second molar resembles what permanent tooth?
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permanent mandibular 1st molar except:
- all 3 facial cusps are more similar in size* - occlusal table narrower F-L - M root much longer and wider than D root - F and L surfaces of M root nearly parallel |