(2) Anatomy and Histology of the Periodotium - Enamel (D) - Clinical

Question 1

What are the clinical considerations of enamel function an dstructure?

Answer 1

Enamel defects.
Dental caries.
Restorative Dentistry
Enamel pearls.

Question 2

What is a disease which can effect the structure and function of enamel? (genetic)

Answer 2

amelogenesis imperfecta

Question 3

What is amelogenesis imperfecta?

Answer 3

effect the structure and/or composition of enamel

Question 4

What is an environmental enamel defect?

Answer 4

little child gets a febrile illness of of they take some type of medication, effect formation of tooth and enamel

Question 5

What is hypoplasia?

Answer 5

less enamel

Question 6

What are visual forms of hypoplasia?

Answer 6

pits and grooves

Question 7

What is hypo- mineralisation?

Answer 7

enamel not fully mineralised, susceptible to acid solution

Question 8

How would teeth appear with hypomineralisation?

Answer 8

opaque

Question 9

What is mottled enamel?

Answer 9

stain-like structures on enamel - associated with fluorosis

Question 10

What is this an example of?

Answer 10

enamel hypoplasia

chronological, child with measles

Question 11

What is this an example of?

Answer 11

tetracycline staining

antibiotic

Question 12

What is this an example of?

Answer 12

dental fluorosis

could be from water

Question 13

During dental caries formation, where does loss begin?

Answer 13

begins at the periphery of the prism.

Question 14

Can mineral loss be remineralised?

Answer 14

Remineralisation could occur, but if demineralisation dominates, the caries progress.

Early lesions treatment by tipping the balance towards remineralisation.

Question 15

When is acid dissolution called erosion?

Answer 15

due to external acid, not bacterial acid

e.g. lemon juice

Question 16

What does acid erosion on the palatine surface of teeth show?

Answer 16

Bulimic anorexia nervosa with high acid diet

Question 17

In restorative dentistry, what should you take into consideration?

Answer 17

Cavity preparation should take the prism orientation in consideration. Unsupported prisms will collapse under masticatory forces leading to failure of the restoration.

Question 18

What is the basic preparation for a filling?

Answer 18

For agents to mechanically bind to enamel, microporosities are formed on the surface by acid-etching techniques.

When bonding agents are applied, microscopic tags can be seen invaginating the rough surface.