Incisors

Question 1

What kind of crown shapes are incisors?

Answer 1

Rectangular

Question 2

Are incisors longer incisogingivally or mesiodistally?

Answer 2

Incisogingivally

Question 3

Are crown outlines more convex on distal or on the mesial?

Answer 3

More convex on the distal

Except for mandibular central incisors

Question 4

Where are contact areas located for incisors?

Answer 4

Incisal 1/3

distal contacts are more cervical

Question 5

If roots are bent in incisors, then which direction will they bend in?

Answer 5

Roots will bend to the distal.

Question 6

Are roots or crowns longer for the incisor class?

Answer 6

Roots are slightly to considerably longer than crowns.

Question 7

Where do mesial and distal marginal ridges converge in incisor class?

Answer 7

Mesial and distal marginal ridges converge to the cingulum.

Question 8

Cervical lines on facial and lingual surfaces make what kind of curve toward which direction?

Answer 8

Curve = convex

toward apically

Question 9

What is the shape of proximal outlines?

Answer 9

Wedge shape

Question 10

Where are crests of curvature located facially and lingually?

Answer 10

Located in the cervical 1/3

Question 11

Proximal cervical lines make what kind of curve toward which direction?

Answer 11

Curve = convex
Toward incisally

More on the mesial cervical line than on the distal cervical line

Question 12

2 Main features of incisors found lingually?

Answer 12

Concave lingual fossa

Convex cingulum

Question 13

Which tooth has cone shaped blunt root?

Answer 13

Maxillary central

Question 14

Which tooth has the largest incisor crown?

Answer 14

Maxillary central

Question 15

Which tooth’s crown is thinner mesiodistally and faciolingually than central?

Answer 15

Maxillary lateral

Question 16

Which incisor has pointed root which is wider faciolingually than mesiodistally?

Answer 16

Maxillary lateral

Question 17

Which incisor has straight root and symmetrical crown?

Answer 17

Mandibular central

Question 18

Which incisor is larger than mandibular central with DL twist from incisal?

Answer 18

Mandibular lateral

Question 19

Which incisor is mostly likelly to have two canals and two roots?

Answer 19

Mandibular lateral incisor

Question 20

Which anterior teeth do not have longitudinal root depressions?

Answer 20

Maxillary central incisor on both mesial and distal

Maxillary lateral incisor only on the distal

Question 21

Which is the only tooth that has equal facial and lingual embrasures?

Answer 21

Mandibular central incisors

Question 22

Which anterior tooth is most likely to have multiple canals?

Answer 22

Mandibular central incisor