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Flashcards in Dental Tissues Deck (27):
1

What is the clinical crown

The portion of the crown which is visible in the mouth

2

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

The clinical crown> anatomical crown

3

What are the ideal properties of a tooth

String
Hard
Water resistant
Resist to chemical damage
Ability to repair
Aesthetic

4

Which structures have the most mineral, matrix, water

Mineral - enamel
Matrix - bone
Water is bone

5

What does enamel cover

The anatomical crown

6

What are some properties of enamel

Epithelial product
Hydroxyapatite
Translucent
Hard
Non vital
Brittle

7

How is enamel arranged

In enamel prisms

8

What kind of burr is required to cut through enamel

Diamond or tungsten carbide

9

Is unsupported enamel easy to get rid of

Easy to fracture with chisel

10

What is dentine

Specialised connective tissue

11

What are some properties of dentine

Hard
Strong
Resilient
Mineral and collagen composition

12

What is pre dentine

Non mineralised
Beside the pulp

13

What direction are the collagen fibres of the dentine arranged like

Following the outline of the enamel

14

In dentine there are dentinall tubules

Highly tubular
Continuous with pulp
Vital

15

What do the dentinal tubules contain

Cellular processes
Nerves
Fluid

16

What is the amelodentinal junction

Between enamel and dentine

17

What are the ways a filling can stay in place

Mechanical undercut
Bond to enamel
Bond to dentine

18

If a filling is bonding to enamel what does it do

Utilise structure of enamel
Acid etch

19

If a filling is bonded to dentine what does it do

Acid deminalisation
Infiltrate collagen with resin
Penetrate tubules with resin

20

What is the dental pulp

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

21

What are hitherto functions of the pulp

Dentine formation
Defence and repair
Sensory

22

What is the gross anatomy of the pulp

Pulp horns
Coronal Pulp chamber
Radicular pulp
Apical foramen

23

How is the dentine and pulp linked

Embryogically
Physically
Functionally

24

Since dentine Is porous how can this affect the pulp

Any material may irritat causing the pulp to inflame
Whilst other materials such as Ca(OH)2 is therapeutic

25

What is cementum

Mineralised specialised connective tissue
Covers the roots

26

What are the functions of the cementum

Tooth support
Resistant to resorption

27

What is the anatomical crown

The portion of the tooth covered in enamel