MIH

Question 1

What is MIH

Answer 1

qualitative defect of enamel
associated with childhood illness or chronological hypomineralisation

Question 2

MIH

Answer 2

Qualitative
Normal thickness of enamel
White/ Yellow brown
Soft porous enamel
Post eruptive breakdown
Asymmetrical opacities

Question 3

Enamel Hypoplasia

Answer 3

Quantitative
Partial/ total absence of enamel
White coloured lesions
Symmetrical lesions

Question 4

Hypomineralisation Defects

Answer 4

Due to LOCAL causes e.g. infection or trauma

Question 5

What type of prevention?

Answer 5

enhanced

Question 6

What is enhanced prevention

Answer 6

hands on brushing instruction and diet advice EVERY VISIT
1350-1500ppm F children up to 10
2800ppm F children 10+ for limited time
GIC on PE first and second molars
FV 22,600ppm 5% F 4x year

Question 7

MH

Answer 7

illness in third trimester
Perinatal complications
Childhood illness

Question 8

When should enamel matrix of FPMs be complete by

Answer 8

1, MIH= disturbance during this time

Question 9

When should enamel matrix of incisors be complete by

Answer 9

2, MIH= disturbance during this time

Question 10

Clinical problems

Answer 10

Post eruptive breakdown
- dentine exposure, inc risk of pulpal involvement
Tooth sensitivity
- poor OH, inc caries risk
Aesthetic problems
Difficult to anaesthetise

Question 11

Tx options for FPMs

Answer 11

Gomp/GIC
SSC
XLA at 8.5-9
- calcification of bifurcation of 7s

Question 12

Tx options for incisors

Answer 12

Microabrasion
resin infil
external bleaching
localised composite
comp/ porcelain veneers
- once pt is 20+ and gingival margin has settled