Incisors

Question 1

Sulcular groove

Answer 1

Formed by the area in the central grooves which the two triangular ridges meet

Question 2

Class 1

Answer 2

72%
Normal
Mesiobuccal cusp of the maxillary first molar meet the mesiobuccal groove of the mandibular first molar
Incisors are close but don’t touch

Question 3

Class 2

Answer 3

Retort attic profile when the chin is pushed back

Occlusal is too far distal for the mandibular molars
22%

Question 4

Class 3

Answer 4

Prob attic profile is when the chin is too far forward
6%
Occlusion is too far mesial for the mandibular molars

Question 5

Diastema

Answer 5

Small space between 8 and 9
Like Michael Strahan
Too much free gingival
Too much frenum

Question 6

Mamelon lobes maxillary incisors

Answer 6

Mesial middle distal developmental lobes
The fourth is the maxillary pit
Create 3 lobes and 2 developmental grooves on the enamel

Question 7

Incisors

Answer 7

CEJ curves towards apex facial
Root longer than crown
Lingual surface narrows
Marginal ridges converge towards cingulum
Lingual fossa pit
Height of contour in cervical third labial/facially

Proximal CEJ curves incisally
Labial surface is less convex than lingual

Question 8

Mandibular vs maxillary

Answer 8

Root to crown ratio is larger
Flatter proximal outlines
Contacts closer to Incisal third
Less curvature to Incisal edge
Wider crowns faciolingually ratio
Smoother lingual surface
Incisal edge tilts lingual

Question 9

Incisal wear

Answer 9

More Incisal ridge wear on the mandibular teeth from the maxillary incisors

Question 10

Maxillary central vs Maxillary lateral

Answer 10

Straighter mesioincisal and distoincisal line angles
Contacts in the Incisal and middle junction
Lateral contacts are more cervical
Centralhave similar root size so a smaller ratio
Lateral root bends dismally
Cross section is triangular vs oval
Cingulum of centrals is shift distal
Cingulum of laterals is central
Lateral is more convex faciolingually

Question 11

Distolingual twist of the Incisal edge

Answer 11

Maxillary central incisors

Mandibular lateral incisors

Question 12

Mandibular lateral vs central

Answer 12

Larger, root to crown ratio are the same at 1.4
Distoincisal angle more round than mesioincisal angle
Lateral has mesial contact more Incisal
Central contacts are even on Incisal third
Distal bend to roots
Lateral cingulum is distal
Both have larger distal root depressions than mesial
Both have CEJ curve larger on mesial than distal
Mandibular roots look like kidney shapes