Anterior Tooth Comparisons

Question 1

MAXILLARY INCISORS FACIAL VIEW

! The central incisor: _____ form-overall _____
! The lateral incisor: more _____-overall trapezoid
! The lateral incisor: facial outline less symmetric and has the most _____ in shape (of all the teeth except the third molars)

Answer 1

squarer
trapezoid
oblong
variation

Question 2

MAXILLARY INCISORS FACIAL VIEW
! The lateral incisor: crown is smaller mesiodistally by about _____
! The lateral incisor: crown is shorter incisocervically by _____

Answer 2

2 millimeters

1-2 millimeters

Question 3

MAXILLARY INCISORS FACIAL VIEW
! The central incisor: MI angle almost a _____ angle
“ The lateral incisor is more _____
! The lateral incisor: proximal surfaces are more _____
! The lateral incisor: root apex is _____ and curves _____

Answer 3

90deg
rounded

convex
sharper
distally

Question 4

MAXILLARY INCISORS FACIAL VIEW
! The central incisor: I edge is _____ M-D
! The lateral incisor: M contact (HOC) is located more _____ than central incisor’s M contact
! The lateral incisor: D contact (HOC) located more _____ than the central incisor’s D contact

Answer 4

straighter
cervical
cervical

Question 5

MAXILLARY INCISORS FACIAL VIEW

! The lateral incisor: MF and DF transitional line angles: much more rounded on the _____

Answer 5

lateral incisor

Question 6

MAXILLARY INCISORS LINGUAL VIEW
! The _____: cingulum is larger and rounder
! The _____: M and D marginal ridges are more prominent
! Lateral Incisor: Deeper _____

Answer 6

central incisor
lateral incisor
lingual fossa

Question 7

MAXILLARY INCISORS LINGUAL VIEW
! Lateral incisor: lingual fossa _____ in size
! Lateral incisor: _____ is more common
! Lateral incisor: more likely to have a _____

Answer 7

smaller
lingual pit
linguogingival groove

Question 8

MAXILLARY INCISORS PROXIMAL VIEW
! _____: F-L crown dimension is greater
! The Central incisor: _____ (CEJ) has the most curvature towards the incisal
! Both: Wedge/ Triangular shaped

Answer 8

central incisor

mesial

Question 9

MAXILLARY INCISORS INCISAL VIEW
! The central incisor: incisal outline form is considered _____
! The lateral incisor: more _____ in outline form
“ F and L surfaces more convex

Answer 9

triangular

rounded or oval (still triangular)

Question 10

MANDIBULAR INCISORS FACIAL VIEW
! Central incisor: almost _____
! Lateral incisor: crown is larger M-D and I-C than _____
! Lateral incisor: incisal edge may slope cervically toward the _____

Answer 10

bilaterally symmetrical
central incisor
distal

Question 11

MANDIBULAR INCISORS FACIAL VIEW
! _____: DI angle of is more rounded
! Lateral incisors: D contact located further _____ than the mesial contact; unlike the mandibular central incisor

Answer 11

lateral incisor

cervically

Question 12

MANDIBULAR INCISORS FACIAL VIEW
! The lateral incisor: D crown outline is more _____
! The _____: root is longer and wider M-D

Answer 12

convex

lateral incisor

Question 13

MANDIBULAR INCISORS PROXIMAL VIEW
! The lateral incisor: larger _____ crown and _____
“ _____ root
! Both: Wedge/ Triangular shaped

Answer 13

F-L
root dimension
longer

Question 14

MANDIBULAR INCISORS INCISAL VIEW
! The _____: I edge is perpendicular to a line that bisects the crown F-L
! The lateral incisor: I edge tilts towards the lingual in the _____ of the tooth

Answer 14

central incisor

distal

Question 15

MANDIBULAR INCISORS INCISAL VIEW
! The central incisor: _____
! The _____: crown appears to be “twisted” on root

Answer 15

bilaterally symmetric

lateral incisor