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Oral Phy > Structural Of The Teeth > Flashcards

Structural Of The Teeth Flashcards

1
Q

Marks primary calcification of enamel

A

Incremental lines of retzius

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2
Q

Appositional/incremental growth of enamel

A

Incremental lines of retzius

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3
Q

Represents lines of retzies as they meet at the surface of enamel

A

Perikymata (incremental lines of retzius)

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4
Q

More pronounced incremental lines

A

Neonatal lines

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5
Q

crosses bands of retzius

A

Transverse striations

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6
Q

Apposition growth of enamel is how many in transverse srtiation?

A

4um/day

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7
Q

Alternate light and dark bands

A

Hunter schreir bands

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8
Q

Found in inner 2/3 of the enamel

A

Hunter schreir bands

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9
Q

Originates from DEJ, lateral spread of caries

A

Enamels tufts

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10
Q

Cracks on surface of enamel

A

Enamel lamellae

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11
Q

Pathway for bacteria to penetrate the enalem

A

Enamel lamellae

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12
Q

Extenion of dentinal tubules that penetrates DEJ

A

Enamel spindles

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13
Q

May serves as pain receptors
DEJ hypersensitivity

A

Enamel spindles

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14
Q

Scalloped for attachment

A

Dentino-enamel junction

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15
Q

Covers dentinal tubules

A

Peritubular dentin (dentinal matrix)

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16
Q

Main bulk, located between tubules

A

Intertubular dentin (dentinal matrix)

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17
Q

Extension of odontoblast

A

Odontoblastic process (dentinal tubules)

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18
Q

Contains dentinal flui

A

Periodontoblastic space (dentinal tubules)

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19
Q

From plexus of raschkow

A

Intratubular nerve (dentinal tubules)

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20
Q

Secretoryactivity of dentin

A

Incremental lines of von ebner

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21
Q

Accentuation of growth lines

A

Contour lines of owen

22
Q

Non fusion of globules of calospherites

A

Interglobular dentin

23
Q

Looping of terminal tubules

A

Granular layer of tomes

24
Q

Movement of dentinal fluid in tubules irritates odontoblastic process by sending pain signals to the brain

A

Hydrodynamic theory of brannstrom

25
Q

Single layer of odontolasts lining pulp chamber

A

Odontoblastic zone

26
Q

Devoid of cells and contains raschkow plexus

A

Cell free zone of weil

27
Q

This zone contains fibroblast

A

Cell rich zone

28
Q

Principal cells of pulp, immunocompetent cells, major vessels and nerve

A

Pulp core

29
Q

Cells of cementum

A

Cenetoblasts and cementcytes

30
Q

Cementum matrix:

A

Sharpeys fibers atachment
Ground substance

31
Q

Classification of cementum:

No cells and no fibers

A

Acellular afribillar

32
Q

Classification of cementum:

ANCHORAGE
No cells but has sharpeys fibers

A

Acellular extrinsic fiber

33
Q

Classification of cementum:

With cell and both intrinsic and extrinsic
Present in apical third
With lacunae

A

Cellular mixed fibers

34
Q

Classification of cementum:

Forms bulk of secondary cementum

A

Cellular mixed fibers

35
Q

Classification of cementum:

With cells and intrinsic fibers

A

Cellular intrinsic fiber

36
Q

Classification of cementum:

FOR REPAIR

A

Cellular intrinsic fiber

37
Q

Classification of cementum:

First layer, seals the tubules

A

Intermediate cementum

38
Q

Connective tissue fiber:

Attached to cementum below CEJ

A

Alveolar crest

39
Q

Connective tissue fiber:

Resistance lateral force

A

Horizontal

40
Q

Connective tissue fiber:

Most numerous and main resistance

A

Oblique

41
Q

Connective tissue fiber:

Resist vertical/tipping force

A

Apical

42
Q

Connective tissue fiber:

Between multi-rooted/bifurcated

A

Interradicular

43
Q

Connective tissue fiber:

Attachment of adjacent tooth
Post ortho relapse

A

Transseptal

44
Q

Connective tissue fiber:

Elastic like fibers

A

Oxytalan fibers

45
Q

Processus alveolaris

A

Maxilla

46
Q

Pars alveolaris

A

Mandible

47
Q

Gingival fiber group:

Most numerous

A

Dentogingival

48
Q

Gingival fiber group:

Alveolar crest to CT

A

Alveologingival

49
Q

Gingival fiber group:

Cementum to alveolar bone

A

Dentoperiosteal

50
Q

Gingival fiber group:

Prevent rotational forces

A

Circumferential

Oral Phy (8 decks)

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