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Dental Sciences > Dental Tissues > Flashcards

Dental Tissues Flashcards

1
Q

What is the clinical crown

A

The portion of the crown which is visible in the mouth

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2
Q

What happens to the viewing of the teeth when there is gingival recession

A

The clinical crown> anatomical crown

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3
Q

What are the ideal properties of a tooth

A 
String 
Hard
Water resistant
Resist to chemical damage 
Ability to repair
Aesthetic
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4
Q

Which structures have the most mineral, matrix, water

A

Mineral - enamel
Matrix - bone
Water is bone

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5
Q

What does enamel cover

A

The anatomical crown

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6
Q

What are some properties of enamel

A 
Epithelial product 
Hydroxyapatite
Translucent 
Hard 
Non vital
Brittle
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7
Q

How is enamel arranged

A

In enamel prisms

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8
Q

What kind of burr is required to cut through enamel

A

Diamond or tungsten carbide

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9
Q

Is unsupported enamel easy to get rid of

A

Easy to fracture with chisel

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10
Q

What is dentine

A

Specialised connective tissue

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11
Q

What are some properties of dentine

A

Hard
Strong
Resilient
Mineral and collagen composition

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12
Q

What is pre dentine

A

Non mineralised

Beside the pulp

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13
Q

What direction are the collagen fibres of the dentine arranged like

A

Following the outline of the enamel

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14
Q

In dentine there are dentinall tubules

A

Highly tubular
Continuous with pulp
Vital

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15
Q

What do the dentinal tubules contain

A

Cellular processes
Nerves
Fluid

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16
Q

What is the amelodentinal junction

A

Between enamel and dentine

17
Q

What are the ways a filling can stay in place

A

Mechanical undercut
Bond to enamel
Bond to dentine

18
Q

If a filling is bonding to enamel what does it do

A

Utilise structure of enamel

Acid etch

19
Q

If a filling is bonded to dentine what does it do

A

Acid deminalisation
Infiltrate collagen with resin
Penetrate tubules with resin

20
Q

What is the dental pulp

A

Specialsed connective tissue
Essentially a matured dental papilla
Dentine is the calcified pulp

21
Q

What are hitherto functions of the pulp

A

Dentine formation
Defence and repair
Sensory

22
Q

What is the gross anatomy of the pulp

A

Pulp horns
Coronal Pulp chamber
Radicular pulp
Apical foramen

23
Q

How is the dentine and pulp linked

A

Embryogically
Physically
Functionally

24
Q

Since dentine Is porous how can this affect the pulp

A

Any material may irritat causing the pulp to inflame

Whilst other materials such as Ca(OH)2 is therapeutic

25
Q

What is cementum

A

Mineralised specialised connective tissue

Covers the roots

26
Q

What are the functions of the cementum

A

Tooth support

Resistant to resorption

27
Q

What is the anatomical crown

A

The portion of the tooth covered in enamel

Dental Sciences (5 decks)

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