Dental Anatomy Ch16 Flashcards Preview

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Flashcards in Dental Anatomy Ch16 Deck (60)
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1

permanent anterior teeth include

incisors and canines

2

four developmental lobes

labial lobes: mesiolabial, middle labial, and distolabial
lingual lobe

3

two vertical labial________outline the separations among the labial developmental lobes

developmental depressions

4

each one replaces the primary tooth of the same type

succedaneous

5

from labial and lingual, the crown outline is

trapezoidal, or four sided

6

when viewed from the proximal the crown outline is

triangular

7

crest of curvature

height of contour

8

rounded raised boarders on mesial and distal parts of lingual surface of anteriors

marginal ridges

9

raised and rounded area on the cervical third of lingual surface on anteriors

cingulum

10

shallow, wide depressions on lingual surface

fossa or fossae

11

pits on lingual surface of anteriors

developmental pits

12

primary groove that marks junction among developmental lobes on lingual surface of anteriors

developmental groove

13

secondary groove on lingual surface of anteriors

supplemental groove

14

patients may have difficulty in maintianing homecare of anteriors because of their

dental arch

15

dental arch position

may allow lips to overhang the teeth. patients can clean only incisal two-thirds of crown

16

grooves on the lingual surface of anteriors may present

areas for dental biofilm retention

17

rounded enamel extensions on the incisal ridge from the labial or lingual views

mamelons

18

incisors are only permanaent teeth with two_______formed from the incisal ridge or incisal edge of each proximal surface

incisal angals

19

a linear elevation on the masticatory or incisal surface when newly erupted

incisal ridge

20

wearing away of a tooth surface caused by tooth-to-tooth contact

attrition

21

disturbance leaves the tooth with a deep lingual pit resulting from invagination of the enamel organ into the dental papilla. may lead to pupal exposure. may be hereditary. most common w/ maxillary lateral incisor

dens in dente

22

pregnant woman w/ syphilis can cause baby to have localized enamel hypoplasia during tooth development

hutchinson's incisors

23

maxillary central incisor

8 & 9

24

maxillary central incisor crown featurs

widest crown MD
greatest CEJ curve & height of contour
distal offset cingulum
shallow lingual fossa
marginal ridges

25

incisors height of contor

cervical third

26

incisors mesial contact

incisal third

27

maxillary central incisors distal contact

junction of incisal and middle thirds

28

distinguishing right from left on incisors

sharper MI angle, rounder DI angle, more pronounced mesial CEJ curvature

29

incisors root featurs

single rooted

30

maxillary insisor root features

conical shape, no proximal root concavities, rounded apex, triangular in cross section