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DBR > Oral Histology > Flashcards

Oral Histology Flashcards

1
Q

Most Calcified and Brittle Substance in Human Body

-semi translucent

A

Enamel

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2
Q

What Basic Structure of Enamel?
Basic Structural Unit
-fish tail ,tadpole ,racket.

A

Enamel Rods

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3
Q

What Basic Structure of Enamel?
Intertwining Pathways of Enamel Rods

A

Gnarled Enamel Rod

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4
Q

What Basic Structure of Enamel?
Covers the Enamel Rod
“Fish Scale Appearance”

A

Enamel Rod Sheath

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5
Q

What Basic Structure of Enamel?

Cements Rod Together

A

Interrod Enamel

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6
Q

What Structural Characteristics of Enamel?

Marks the PRIMARY CALCIFICATION of Enamel?

-Appositional/Incremental Growth of Enamel

A

Incremental Lines of Retzius

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7
Q

What Structural Characteristics of Enamel?

Lines of Retries as they meet at the Surface of Enamel

A

Perikymata

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8
Q

What Structural Characteristics of Enamel?

More Pronounced “Incremental Line”

A

Neonatal Lines

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9
Q

What Structural Characteristics of Enamel?

Crosses “Bands of Retzius”

A

Transverse Striations

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10
Q

What Structural Characteristics of Enamel?

Alternate”Light and Dark Bands”

A

Hunter Schreier Bands

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11
Q

What Structural Characteristics of Enamel?

-LATERAL Spread of Caries
-Originate from DEJ

A

Enamel Tufts

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12
Q

What Structural Characteristics of Enamel?

-CRACKS on the Surface of Enamel

-PATHWAY of bacteria to Penetrate the Enamel

A

Enamel Lamellae

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13
Q

What Structural Characteristics of Enamel?

Extension Dentinal Tubules that Penetrate the DEJ

“DEJ HYPERSENSITIVITY”

A

Enamel Spindle

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14
Q

What Structural Characteristics of Enamel?

SCALLOPED for Attachment

A

Dentino Enamel Junction

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15
Q

What Deformities?

Deficiency in QuanTITY?

*SIA😀

A

Enamel Hypoplasia

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16
Q

What Deformities?
Deficiency in Quality?

*QualificaTION😀

A

Enamel Hypocalcification

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17
Q

BULK OF TOOTH

-Yellowish Intrinsic color
-Provides “Flexibility”

A

Dentin

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18
Q

What Basic Structure of Dentinal Matrix?
-COVERS Dentinal Tubule

A

Peritubular Dentin

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19
Q

What Basic Structure of Dentinal Matrix?

-Main Bulk (BETWEEN TUBULES)

A

INTERtubular Dentin

20
Q

What Basic Structure of Dentinal Tubules?

-EXTENSION of Odontoblast

A

Odontoblastic Process

21
Q

What Basic Structure of Dentinal Tubules?

Contains DENTINAL FLUID

A

Periodontoblastic Space

22
Q

What Basic Structure of Dentinal Tubules?
-from Plexus of Raschkow

A

Intratubular Nerve

23
Q

What Structural Characteristics?

“Secretory Activity” of Dentin

A

Incremental Lines of Von Ebner

24
Q

What Structural Characteristics?

Accentuation of “GROWTH LINES’

A

Contour Lines of Owen

25
Q

What Structural Characteristics of Dentin?
Non Fusion of GLOBULES OF CALCOSPHERITES

A

InterGlobular Dentin

26
Q

What Structural Characteristics of Dentin?

Looping of TERMINAL TUBULES

A

Granular Layer of Tomes

27
Q

What Type of Dentin?

(Orthodentin)

From Odontogenesis until Apical Formation

A

Primary Dentin

28
Q

UNDER OF Primary Dentin.

Outer Layer Parallel to DEJ ?

A

Mantle Dentin

29
Q

Under Primary Dentin.

-BULK of Dentin Mass
-Surrounds Pulp Chamber

A

Circumpulpal Dentin

30
Q

What Type of Dentin?
“Slower Deposition” after root formation has completed

A

Secondary Dentin

31
Q

What Type of Dentin?

Formed in Response to Outside or Noxious Stimuli

A

Tertiary Dentin

32
Q

Under Tertiary Dentin.

From NEW ODONTOBLAST

A

Reparative Dentin

33
Q

Under Tertiary Dentin.

From EXISTING ODONTOBLAST

A

Reactionary Dentin

34
Q

What Type of Dentin?

New Layer of Dentin Formed

A

Predentin/Dentinoid

35
Q

Specialize CT,consist of Lymphatics Nerves and Blood Vessels

A

Pulp

36
Q

Pulp Classification

“Pulp Horns”

A

Coronal Pulp

37
Q

Pulp Classification

“PULP CANALS”

A

Radicular Pulp

38
Q

Avascular Tissue that Covers the Radicular Dentin

Part of Both Tooth and Periodontium

A

Cementum

39
Q

Classification of Cementum?

No Cells No Fibers

A

Acellular ,Afibrillar

40
Q

Classification of Cementum?

NO Cells with Fibers (sharpey)

A

Acellular Extrinsic Fiber

41
Q

Classification of Cementum?

with Cells and BOTH EXTRINSIC AND INTRINSIC FIBERS

A

Cellular Mixed Fiber

42
Q

Classification of Cementum?

with Cells and Intrinsic Fibers

A

Cellular Intrinsic Fiber

43
Q

Classification of Cementum?
First Layer Seals the Tubules

A

Intermediate Cementum

44
Q

HOUR GLASS SHAPE

A

Periodontal Ligament

45
Q

Houses the Teeth

A

Alveolar Bone

46
Q

-Immediately Surrounds Teeth
- PDL fibers are Embedded
-bundle bone,lamina dura and Cribriform Plate

A

Alveolar Bone Proper

DBR (3 decks)

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