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Morphology > Unit 1 > Flashcards

Unit 1 Flashcards

1
Q

Dental Arch

A

teeth, gingiva, and associated bone

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2
Q

Does the mandible or maxillary arch move?

A

MANDIBLE ONLY

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3
Q

Which teeth are primary teeth missing?

A

Premolars

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4
Q

What is the crown covered with

A

Enamel

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5
Q

What is the root covered with

A

Cementum

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6
Q

Enamel

A

Dense hydroxyapatite surface of the crown

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7
Q

Dentin

A

Inner hard layer of crown and root

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8
Q

Pulp

A

Vascular innervated portion of the tooth

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9
Q

Cementum

A

outer layer of root surface

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10
Q

DEJ (Dentoenamel junction)

A

junction of enamel and dentin layers

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11
Q

CEJ (cementoenamel junction)

A

junction of enamel and cement layers

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12
Q

Cervical line

A

Junction of anatomic crown and root

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13
Q

Clinical Crown VS Anatomical Crown

A

Portion of tooth that is visible in the mouth = clinical
Crown above the CEJ = anatomical

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14
Q

Cusp

A

Projection on a crown

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15
Q

Fossa

A

Depression between cusps or ridges

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16
Q

Cingulum

A

Lingual projection on anterior teeth

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17
Q

Groove

A

Line between primary parts of a crown or root

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18
Q

Pit

A

Pinpoint depression at junction or termination of a groove

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19
Q

Lobe

A

Primary center of development within a tooth

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20
Q

Mamelon

A

Round projections of enamel on newly erupted teeth
Incisal remnant of incisor development
Think super rough incisal edges

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21
Q

Furcation

A

Where root divides

22
Q

Root apex

A

Opening in the root for entrance of the pulp

23
Q

Pulp

A

Vascular innervated portion of the tooth

24
Q

Pulp chamber

A

Chamber containing dental pulp

25
Q

Pulp horn

A

Highest projection of pulp chamber within the crown

26
Q

Pulp canal

A

Inner portion of root containing the dental pulp

27
Q

Periodontium

A

Tissues that surround teeth (includes gingiva, cementum, alveolar bone, and periodontal ligament)

28
Q

3 sections of gingiva

A

Free gingiva, attached gingiva, and interdental papilla

29
Q

Alveolar Mucosa

A

Loose attachment to the underlying bone; dark red

30
Q

Mucogingival junction

A

Junction of alveolar mucosa and gingiva

31
Q

Free gingival groove

A

Separates attached gingiva from free gingiva

32
Q

Interdental papilla

A

Triangular shaped gingiva that occupies gingival embrasure

33
Q

Gingival sulcus

A

Space between tooth surface and narrow cervical collar of free gingiva (evaluated with periodontal probe)

34
Q

periodontal ligament (PDL)

A

surrounds tooth root and attaches tooth to alveolar bone (periodontal fibers)

35
Q

Alveolar boen

A

forms and supports tooth sockets

36
Q

Vermilion boder

A

sharp junction of red zone and skin

37
Q

Nasolabial groove

A

Demarcates lip and cheek

38
Q

Philtrum of lip

A

Middle of upper lip

39
Q

Labiomental groove

A

Indent under bottom lip on chin

40
Q

Labial/buccal frena

A

attachments of lips and cheeks to alveolus (bony area surrounding teeth)

41
Q

Sublingual folds

A

raised worlds where submandibular salivary ducts open

42
Q

Retromolar pad

A

space behind back molars that is elevated

43
Q

First sign of development is

A

6-7 weeks in utero

44
Q

Deciduous teeth begin to calcify at

A

13-20 weeks in utero

45
Q

ALl deciduous teeth have begun to calcify by

A

18-20 weeks in utero

46
Q

Deciduous teeth erupt at

A

6-30 months

47
Q

Succedaneous teeth

A

Permanent teeth that replace deciduous teeth

48
Q

Non-succedaneous teeth

A

Permanent teeth that do not replace deciduous teeth (maxillary first molars are a good example of this)

49
Q

In permeant teeth, root development is completed ____ after eruption of teeth

A

2-3 years

50
Q

In permanet teeth, what is the first part of tooth to calcify?

A

The crown

51
Q

Calcification of crown of teeth is completed when? (formula)

A

1/2 time of eruption and add 1 year

Morphology (1 decks)

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