L4: upper permanent maxillary incisors

Question 1

what are the major functions of the upper central incisors?

Answer 1

Their major function is to cut food however there other functions as; Help in speech, Support upper lip, Appearance and Guide the mandible during final closing movement.

Question 2

what is the difference between the incisal ridge and incisal edge ?

Answer 2

the incisal ridge is the incisal portion in a newly erupted incisor, the incisal edge is essentially a worn down incisal ridge

Question 3

what are the only 2 neighboring teeth with mesial surfaces in contact ?

Answer 3

2 central incisors

Question 4

what is the eruption time of the upper central incisors ?

Answer 4

7-8 years

Question 5

what is the eruption time of upper lateral incisors ?

Answer 5

8-9 years

Question 6

developmental grooves are most appaernt on which maxillary incisor?

Answer 6

upper central

Question 7

root of upper lateral incisor is shifted___

Answer 7

distally

Question 8

the distal contact area is _____ the mesial contact area in almost all teeth

Answer 8

more cervical

Question 9

which marginal ridge is shorter ?

Answer 9

distal marginal ridge

Question 10

the cingulum of the upper central incisor is shifted ____

Answer 10

distally

Question 11

which tooth contains the linual/ palatal pit ?

Answer 11

upper lateral incisor

Question 12

which surface is shorter , the distal or mesial surface

/?

Answer 12

distal

Question 13

mesiodistal and labiolingual measurements are almost equal in lateral upper incisors which is why its shape from the incisal aspect is _

Answer 13

circle

Question 14

mesiodistally the central upper incisor is much larger than it is labiolingually , which is why its shape from the incisal aspect is a __

Answer 14

triangle