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2nd year hell > prelims oral ana > Flashcards

prelims oral ana Flashcards

1
Q

external parts of tooth

A

crown and root

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2
Q

tissues of tooth

A
  1. enamel
  2. dentin
  3. pulp
  4. cementum
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3
Q

the supporting structures of the teeth are collectively called _______

A

periodontium

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4
Q

the periodontium consists of?

A
  1. alveolar process
  2. periodontal ligament
  3. cementum
  4. gingiva
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5
Q

the portion of the maxillae or mandible in which the roots of the teeth are embedded and by which tooth roots are supported

A

alveolar process

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6
Q

the alveolar process consists of?

A
  1. outer cortical bone
  2. spongy bone
  3. lamina dura
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7
Q

a compact layer of bone’s surface

A

outer cortical bone

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8
Q

a thin, dense layer of bone that lines tooth sockets

A

lamina dura

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9
Q

the less dense bone representing the alveolar process’ central mass

A

spongy bone

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10
Q

a thin, fibrous ligament connecting a tooth to the lamina dura of the bony socket

A

periodontal ligament

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11
Q

the specialized mucous membrane covering the alveolar processes and anchoring the necks of the teeh

A

gingiva

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12
Q

function of gingiva

A

aids in the support of teeth; protects the alveolar process and periodontal ligament from bacterial invasion

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13
Q

main parts of gingiva

A

free and attached

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14
Q

gingiva that is not tightly bound to anything underneath it

A

free gingiva

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15
Q

the gap/space between the tooth and free gingiva

A

gingival sulcus

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16
Q

what joins the free gingiva to the surface of the tooth

A

epithelial attachment

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17
Q

the portion of the free gingiva that fills the proximal spaces below the contact areas of the adjacent teeth

A

interdental papilla

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18
Q

function of free gingiva

A

helps prevent food from packing between teeth

19
Q

part of the gingiva that is firmly fixed to underlying bone

A

attached gingiva

20
Q

formed during the development of the root

A

cementum

21
Q

function of cementum

A

serves as an area of attachment for periodontal ligament fibers

22
Q

most internal structure of the tooth; surrounded by dentin

A

pulp

23
Q

forms the main mass of the tooth

A

dentin

24
Q

dentin function

A

supports the enamel and acts as shock absorber when eating

25
Q

one of the primary anatomical divisions of a crown

A

lobe

26
Q

small, rounded projections of enamel from the incisal edges of newly erupted anterior teeth

A

mamelons

27
Q

a convex mount of enamel localized to the cervical one-third of the crown

A

cingulum

28
Q

a pointed or rounded elevation of enamel found on cuspids and on chewing surfaces of bicuspids and molars

A

cusps

29
Q

a linear, rounded border of enamel that forms the mesial and distal margins of teeth

A

marginal ridge

30
Q

the ridge of the enamel that extends from the cingulum to the cusp tip on the lingual surface of most cuspids

A

lingual ridge

31
Q

how many cusp ridge does each cusp have

A

4

32
Q

the sloping area found on the cusp ridges

A

cusp inclines

33
Q

unites the triangular ridge of the distobuccal cusp and the mesiolingual cusp

A

oblique ridge

34
Q

unites the buccal and lingual triangular ridge that crosses the surface of a posterior tooth transversely

A

transverse ridge

35
Q

**

an irregular rounded concavity bound by the mesial and distal marginal ridge, cingulum, and incisal edge of the lingual surface of an incisor tooth

A

lingual fossa

36
Q

these are located adjacent to marginal ridges on the occlusal surfaces of posterior teeth

A

triangular fossa

37
Q

centrally located depression or concavity found on the occlusal surface of molars

A

central fossa

38
Q

an elongated valley or depression in the surface of a tooth formed by the inclines of adjacent cusps or ridges

A

sulcus

39
Q

minor, auxiliary groove that branches off from a much more prominent developmental groove

A

supplemental groove

40
Q

a linear fault that sometimes occurs in a developmental groove

A

fissure

41
Q

a small, pinpoint fault on the surface of a tooth

A

pit

42
Q

where are pits founds

A

usually at the end of a developmental groove; or at a place where two fissures intersect

43
Q

separates free gingiva from attached gingiva

A

gingival groove

44
Q

separates attached gingiva from alveolar mucosa

A

mucogingival junction

2nd year hell (13 decks)

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