ENAMEL Flashcards

1
Q

Hardest structure in the body

A

ENAMEL

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2
Q

Hardness of enamel

A

5-8 MOh

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3
Q

Its density is 2.6mm

A

MOLAR CUSP

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4
Q

Its density is 2.3mm

A

PREMOLAR CUSP

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5
Q

Its density is 2.0mm

A

INCISAL EDGE

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6
Q

Its density is 0.1mm

A

CEJ

CEMENTO ENAMEL JUNCTION

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7
Q

Its color is translucent

A

ENAMEL

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8
Q

Thicker enamel (color)

A

GRAYISH-BLUISH

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9
Q

Thinner enamel (color)

A

YELLOWISH WHITE

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10
Q

It means elasticity and the capacity to resist stretching

A

TENSILE STRENGTH

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11
Q

The ability to resist pounding

A

COMPRESSIVE

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12
Q

How many percent of enamel has water

A

11%

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13
Q

How much water is there in deep regions

A

4%

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14
Q

The ability to accept chemicals

A

PERMEABILITY

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15
Q

It is the decayed process

A

ACINOGENIC BACTERIAL ACTION

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16
Q

It protects natural teeth

A

FLOURIDE

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17
Q

It gives color to natural teeth

A

DENTIN

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18
Q

Its color is light yellow

19
Q

It is harder than the bone

20
Q

It is highly elastic

21
Q

Provide nutrients for natural teeth

22
Q

Primary and foremost function of pulp tissue

23
Q

It provides feeling

24
Q

It is for abrasions

25
Facilitates decay process
SECONDARY DENTIN
26
It has same degree of hardness as the bones
CEMENTUM
27
Properties of cementum
- softer than enamel - lack luster - has dark hue - light yellowish (lighter) - permeable
28
Functions of cementum
Attachment for periodontal ligament Contribute to continuous eruption Regulates periodontal space (.2mm) Protects root dentin Repair
29
Deposing new bone. pull
Aposition
30
It surrounds suspensory fibers
Periodontal Ligament
31
Fcns of periodontal ligament
``` Supportive Formative Nutritive Protective Sensory ```
32
Glomeration same as pulp tissue
Proprio receptor
33
Fcns of bone and alveolar bone
``` Support to body Protects vital org Hematopoesis Attachment of muscle Locomotion Calcium reservoir ```
34
Compact bone which lines the tooth socketed
Cribri form plate or lamina dura im XRay
35
Prevents food from being pack. Stabilizes dental arches. Series of contact points. Exist on highest convexity
Proximal contact areas
36
It contributes to the healthy condition of the mouth
Physiologic tooth forms
37
Size of contact point
0.5 mm
38
Closer to the midline
Mesial
39
Away to the midline
Distal
40
Gingival tissues fill up this spaces. Accommodates the interproximal or interdental tissues
Inter proximal spaces
41
Spaces created from contact area and diverge from contact area
Embrasures
42
Means to contact
Occlusion
43
Forns outer and inner plate of alveolar process
Cortical plate
44
Surrounds alveolar bone proper
Supporting alveolar bone