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Dental Anatomy
EXAM1
| Question | Answer |
|---|---|
| Widest Anterior tooth mesial-distally | Maxillary central incisor |
| maxillary central incisor mesial contact | incisal 1/3 |
| maxillary central incisor distal contact | junction of incisal/middle 1/3 |
| relationship of MMR to DMR on maxillary central incisors | MMR > DMR |
| Which tooth has the greatest CEJ curvature? Which side? | Maxillary central incisor on the mesial side |
| Heights of contour for lingual and facial side of maxillary central incisor | both are in gingival 1/3 |
| shape of view of maxillary central incisor from facial view? | trapezoid |
| shape of view of maxillary central incisor from lingual view? | triangle |
| shape of root of maxillary central incisor | cone shaped with blunted apex |
| first evidence of calcification of maxillary central incisor | 3-4 months old |
| eruption of maxillary central incisor | 7-8 years old |
| root completion of maxillary central incisor | 10 years old |
| how many developmental lobes does the maxillary central incisor have | 4 |
| second longest crown in the mouth | maxillary central incisor |
| which tooth is more convex? max central incisor or max lateral incisor | maxillary lateral incisor |
| mesial contact on maxillary lateral incisor | junction of incisal and middle 1/3 |
| distal contact on maxillary lateral incisor | middle 1/3 |
| which anterior teeth can have root dilacerations? | maxillary lateral incisors |
| relationship between MMR and DMR on maxillary lateral incisor | MMR > DMR because the incisal edge slopes up as you move distally on the tooth |
| location of cingulum on maxillary lateral incisor | center of tooth |
| distinct feature of max lateral incisor that is related to caries | typically see lingual pits due to "squeezing" of tooth into small space. Related to the tooth's very distinct lingual anatomy |
| palatoradicular groove | groove that extends from the lingual surface up the root of the maxillary lateral incisor. Typically starts at cingulum or lingual pit. Potential problem with scaling/cleaning this area due to calculus build-up |
| shape of maxillary lateral incisor crown? | trapezoid |
| 2nd most congenitally missing tooth | maxillary lateral incisor |
| 2nd most likely tooth to show crown abnormalities | maxillary lateral incisor |
| facial height of contour for max lateral incisor | gingival 1/3 |
| which anterior tooth has the most defined anatomy? | maxillary lateral incisor |
| Lingual height of contour for maxillary lateral incisor | gingival 1/3 |
| proximal shape of maxillary lateral incisor | triangle |
| first evidence of calcification of maxillary lateral incisor | 1 year old |
| eruption of maxillary lateral incisor | 8-9 years old |
| root completion of maxillary lateral incisor | 11 years old |
| only anterior tooth with cusp tip | canines |
| mesial contact of maxillary canine | junction of incisal and middle 1/3 |
| distal contact of maxillary canine | middle 1/3 |
| relationship of MCR and DCR in maxillary canine | MCR < DCR |
| location of cusp tip in maxillary canine | middle of tooth, able to draw line from cusp ridge that would bisect the root apex |
| distinct feature ofincisal edge on maxillary canine via proximal view | incisal edge is labial to line that bisects the root |
| which tooth has dual convexities of coronal and radicular segments | maxillary canine |
| anterior tooth with distal concavity? where is it located? | maxillary canine, located apical to distal contact in cervical 1/3 |
| longest tooth from cusp tip to root apex | maxillary canine |
| benefits of how convex and bulbous the maxillary canine is | lots of self cleansing features |
| 3 longest crowns in mouth | 1. mandibular canine 2. maxillary central 3. maxillary canine |
| widest anterior tooth from facial-lingual | maxillary canine ("fattest" tooth) |
| facial height of contour for maxillary canine | gingival 1/3 |
| lingual height of contour for maxillary canine | gingival 1/3 |
| last succedaneous tooth to erupt | maxillary canines |
| mesial contact on mandibular central incisor | incisal 1/3 |
| distal contact on mandibular central incisor | incisal 1/3 |
| first succedaneous tooth to erupt | mandibular central incisors |
| first permanent tooth to erupt | mandibular first molar |
| only tooth with same mesial and distal contact areas | mandibular central incisor |
| characteristic of mandibular central incisor's roots | developmental depressions on mesial and distal sides. sometimes distal is more pronounced. help to stabilize tooth in arch |
| first evidence of calcification for mandibular central incisor | 3-4 months old |
| eruption of mandibular central incisor | 6-7 years old |
| root completion of mandibular central incisor | 9 years old |
| first evidence of calcification for maxillary canines | 4-5 months old |
| eruption of maxillary canine | 11-12 years old |
| mesial proximal contact for mandibular lateral incisor | incisal 1/3 |
| distal proximal contact for mandibular lateral incisor | incisal 1/3 (but slightly more cervical than mesial proximal contact) |
| **root length of mandibular central and lateral incisors | root is longer on the mandibular lateral incisor |
| location of cingulum on mandibular lateral incisor | slightly distal |
| facial height of contour on mandibular lateral incisor | gingival 1/3 |
| lingual height of contour on mandibular lateral incisor | gingival 1/3 |
| first evidence of calcification of mandibular lateral incisor | 3-4 months old |
| eruption of mandibular lateral incisor | 7-8 years old |
| root completion of mandibular lateral incisor | 10 years old |
| shape of mandibular lateral incisor root when viewed in cross section | oval to elliptical shape |
| canals in mandibular lateral incisor | 45% chance of having two canals in the single root |
| **crown of mandibular vs. maxillary canines | crown of mandibular canine is longer than maxillary canine, though the maxillary canine is the longest tooth root-crown in mouth |
| DCR vs. MCR in mandibular canine | DCR > MCR |
| mesial proximal contact for mandibular canine | incisal 1/3 |
| distal proximal contact for mandibular canine | middle 1/3 |
| location of incisal edge on mandibular canine | lingual to labiolingual midpoint |
| **special characteristic of mandibular canine roots | can be bifurcated, only anterior tooth with this feature |
| **where are the bifurcated roots located in mandibular canine? | facial and lingual |
| **view of outline of mandibular canine from cusp tip to root apex | one continuous arc |
| facial height of contour for mandibular canine | gingival 1/3 |
| lingual height of contour for mandibular canine | gingival 1/3 |
| **root depressions in maxillary and mandibular canines | maxillary: depression is deeper on distal side, mandibular: depression is deeper on mesial side |
| eruption of mandibular canine | 9-10 years old |
| first evidence of calcification of mandibular canine | 4-5 months old |
| root completion of mandibular canine | 13 years old |
| MBCR and DBCR relationship on maxillary first premolar | MBCR > DBCR (only permanent tooth with this relationship) |
| facial shape of maxillary first premolar | trapezoid |
| characteristic on maxillary first premolars that allows you to distinguish #5 from #12 | mesial marginal ridge groove that crosses over the marginal ridge from the mesial pit |
| shape of maxillary first premolar from mesial view | trapezoid |
| facial height of contour for maxillary first premolars | cervical 1/3 |
| lingual height of contour for maxillary first premolars | middle 1/3 |
| shape of maxillary first premolar occlusal table | trapezoid |
| shape of crown profile of maxillary first premolar from occlusal | hexagonal |
| **what shape does the cross section of the root of the maxillary first molar resemble? | figure 8 |
| first evidence of calcification of the maxillary first premolar | 1 1/2 - 1 3/4 years old |
| tooth eruption of maxillary first premolar | 9-10 years old |
| root completion of maxillary first premolar | 13 years old |
| mesial contact of maxillary first premolars | middle third |
| distal contact of maxillary first premolars | middle third |
| how many lobes does the maxillary first premolar develop from? | 4 lobes |
| MBCR and DBCR relationship between maxillary second premolars | MBCR < DBCR |
| % of maxillary second premolars with two root canals | 40% of maxillary second premolars have two root canals in the single root |
| shape of crown of maxillary second premolar | trapezoid |
| facial height of contour for maxillary second premolars | gingival 1/3 |
| lingual height of contour for maxillary second premolars | middle 1/3 |
| Root depression relationships on maxillary and mandibular second premolars | maxillary: distal root depression is deeper mandibular: mesial root depression is deeper |
| crown profile shape of maxillary second premolar | ovoid |
| first evidence of calcification of maxillary second premolar | 2 years old |
| eruption of maxillary second premolar | 10-12 years old |
| root completion of maxillary second premolar | 13 years old |
| mesial contact of maxillary second premolar | middle 1/3 |
| distal contact of maxillary second premolar | middle 1/3 |
| how many lobes does the maxillary second premolar develop from? | 4 lobes |
| MBCR and DBCR relationship in mandibular first premolar | MBCR < DBCR |
| shape of facial profile of mandibular first premolar | trapezoid |
| location of buccal cusp on mandibular first premolar | slightly mesial to center of tooth |
| where is a distinct groove found on the mandibular first premolar | distinct mesiolingual developmental groove |
| MMR and DMR relationship in mandibular first premolars | MMR < DMR |
| shape of occlusal profile of mandibular first premolar | diamond |
| which buccal surface is more convex? mandibular or maxillary first premolars? | mandibular |
| proximal outline shape of posterior teeth | rhomboidal in shape |
| facial height of contour of mandibular first premolar | cervical 1/3 |
| lingual height of contour of mandibular first premolar | middle 1/3 |
| first evidence of calcification of mandibular first premolar | 1 1/4 - 2 years old |
| eruption of mandibular first premolar | 10-12 years old |
| root completion of mandibular first premolar | 13 years old |
| which lingual cusp is larger on mandibular second premolars? | mesial lingual cusp > distal lingual cusp |
| occlusal shape of mandibular second premolar | square |
| shape of occlusal table with 3 cusps | "Y" shape |
| shape of occlusal table with 2 cusps | "H" shape |
| on which premolar is there a definite central pit | mandibular second premolar |
| mesial contacts of mandibular second premolar | middle 1/3 |
| distal contacts of mandibular second premolar | middle 1/3 |
| which premolar has the roundest root in cross-sectional view? | mandibular second premolar |
| facial height of contour of mandibular second premolar | middle 1/3 |
| lingual height of contour of mandibular second premolar | middle 1/3 |
| first evidence of calcification of mandibular second premolar | 2 1/4 - 2 1/2 years old |
| eruption of mandibular second premolar | 11-12 years old |
| root completion of mandibular second premolar | 12-14 years old |
| when viewing from occlusal, location of proximal contacts faciolingually on (1) anterior teeth (2) posterior teeth | (1) centered faciolingually (2) located buccal to the center of teeth |
| which way to contact areas move from anterior to posterior in each quadrant? | cervically |
| occlusal contacts of mandibular teeth | contact their class counterpart and the tooth mesial |
| occlusal contacts of maxillary teeth | contact their class counterpart and the tooth distal |
| **shape of interdental areas, what makes up each side? | triangle, base is alveolar bone, sides are mesial and distal proximal surfaces of adjacent teeth, apex is proximal contact area |
| names of embrasures when looking from a facial or lingual view | cervical/gingival embrasures and incisal/occlusal embrasures |
| names of embrasures when looking from an occlusal view | buccal/labial embrasures and lingual embrasures |
| **feature of incisal/occlusal embrasure size as you move from anterior to posterior teeth | increase in size |
| **feature of cervical embrasure size as you move from anterior to posterior teeth | decrease in size |
| lingual vs. facial embrasures | lingual are larger than facial embrasures |
| which embrasure is the greatest/longest | incisal embrasure of maxillary lateral/canine |
| which embrasure is the widest | incisal embrasure of maxillary canine/1st premolar |
| height of contour in anterior tooth on facial surface | cervical 1/3 |
| height of contour in anterior teeth on lingual surface | cervical 1/3 |
| height of contour in posterior teeth on buccal surface | gingival 1/3 |
| height of contour in posterior teeth on lingual surface | middle or occlusal 1/3 |
| depth of curvature on CEJ: mesial vs. distal | depth of curvature is greater on mesial than on distal aspect |
| which way is CEJ curved on facial/lingual aspect of tooth? | curved toward apex |
| which way is CEJ curved on mesial/distal aspect of tooth? | curved toward occlusal surface |
| depth of curvature on CEJ: anterior vs. posterior | depth of curvature on CEJ is greater on anterior teeth and decreases toward the posterior |
| ***from level of occlusion the curve of spee of the maxillary arch is | convex |
| ***from the level of occlusion the curve of spee of the mandibular arch is | concave |
| alignment of cusp tips of posterior teeth produces | linear curve called curve of spee |
| curve created by ____ inclination of posterior teeth's _______ | curve of wilson, lingual inclination, occlusal surfaces |
Created by:
amarmon