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DBR > Oral Histology > Flashcards

Oral Histology Flashcards

(46 cards)

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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)

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A

INTERtubular Dentin

20
Q

What Basic Structure of Dentinal Tubules?

-EXTENSION of Odontoblast

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A

Odontoblastic Process

21
Q

What Basic Structure of Dentinal Tubules?

Contains DENTINAL FLUID

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A

Periodontoblastic Space

22
Q

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

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A

Intratubular Nerve

23
Q

What Structural Characteristics?

“Secretory Activity” of Dentin

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A

Incremental Lines of Von Ebner

24
Q

What Structural Characteristics?

Accentuation of “GROWTH LINES’

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A

Contour Lines of Owen

25
What Structural Characteristics of Dentin? Non Fusion of GLOBULES OF CALCOSPHERITES
InterGlobular Dentin
26
What Structural Characteristics of Dentin? Looping of TERMINAL TUBULES
Granular Layer of Tomes
27
What Type of Dentin? (Orthodentin) From Odontogenesis until Apical Formation
Primary Dentin
28
UNDER OF Primary Dentin. Outer Layer Parallel to DEJ ?
Mantle Dentin
29
Under Primary Dentin. -BULK of Dentin Mass -Surrounds Pulp Chamber
Circumpulpal Dentin
30
What Type of Dentin? "Slower Deposition" after root formation has completed
Secondary Dentin
31
What Type of Dentin? Formed in Response to Outside or Noxious Stimuli
Tertiary Dentin
32
Under Tertiary Dentin. From NEW ODONTOBLAST
Reparative Dentin
33
Under Tertiary Dentin. From EXISTING ODONTOBLAST
Reactionary Dentin
34
What Type of Dentin? New Layer of Dentin Formed
Predentin/Dentinoid
35
Specialize CT,consist of Lymphatics Nerves and Blood Vessels
Pulp
36
Pulp Classification "Pulp Horns"
Coronal Pulp
37
Pulp Classification "PULP CANALS"
Radicular Pulp
38
Avascular Tissue that Covers the Radicular Dentin Part of Both Tooth and Periodontium
Cementum
39
Classification of Cementum? No Cells No Fibers
Acellular ,Afibrillar
40
Classification of Cementum? NO Cells with Fibers (sharpey)
Acellular Extrinsic Fiber
41
Classification of Cementum? with Cells and BOTH EXTRINSIC AND INTRINSIC FIBERS
Cellular Mixed Fiber
42
Classification of Cementum? with Cells and Intrinsic Fibers
Cellular Intrinsic Fiber
43
Classification of Cementum? First Layer Seals the Tubules
Intermediate Cementum
44
HOUR GLASS SHAPE
Periodontal Ligament
45
Houses the Teeth
Alveolar Bone
46
-Immediately Surrounds Teeth - PDL fibers are Embedded -bundle bone,lamina dura and Cribriform Plate
Alveolar Bone Proper

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