5. Molar Incisor Hypomineralisation Flashcards Preview

BDS2 CDS Paediatric Dentistry > 5. Molar Incisor Hypomineralisation > Flashcards

Flashcards in 5. Molar Incisor Hypomineralisation Deck (22):
1

Definition of MIH (2)

Hypomineralisation of systemic origin of one to four permanent molars, frequently associated with affected incisors
Usually a developmental condition, found in the period of development between birth and 2yrs

2

Definition of enamel hypomineralisation

Disturbances of enamel formation, resulting in a reduced mineral content (normal enamel thickness but less mineralised so softer)
Qualitative

3

Definition of enamel hypoplasia

Reduced bulk or thickness of enamel (normal but less)
Quantitative

4

Types of enamel hypoplasia (2)

True
Acquired

5

Definition of true enamel hypoplasia

Enamel never formed

6

Definition of acquired enamel hyperplasia

Post-eruptive loss of enamel bulk

7

Clinical periods of enquiry for MIH (3)

Pre-natal (Pre-eclampsia, gestational diabetes)
Natal (fullterm, specific birth trauma)
Post-natal (resp., varicella, MMR)

8

Incubation period of measles

10-14 days

9

Duration of illness of measles

7-10 days

10

Signs and symptoms of measles (6)

Fever
Rash
Conjunctivitis
Cough
Coryza
Koplik's spots

11

Untreated measles can cause (7)

Secondary infection
Otitis media
Bronchopneumonia
Corneal ulcers
Stomatitis
Gastroenteritis
Appendicitis

12

Duration of illness of rubella

8-10 days

13

Signs and symptoms of rubella (5)

Mild fever
Maculopapular rash
Generalised lymphadenopathy (especially sub occipital nodes)
Malaise
URTI

14

Untreated rubella can cause (3)

Encephalitis
Arthritis
Purpura

15

Duration of illness of varicella/chicken pox

6-10 days

16

Signs and symptoms of varicella (3)

Low grade fever
Rash
Crops of spots progressing from macule-papule-vesicle

17

Untreated varicella can cause (3)

Secondary infection of lesion
Encephalitis
Pneumonia

18

Features of hypomineralised molars (3)

Increased pulp horn and subodontoblastic region neural density
Significant increases in immune cell accumulation (especially with post-eruptive enamel loss)
Significant increase in vascularity in sensitive MIH

19

MIH pain mechanisms (3)

Dentine hypersensitivity
Peripheral sensitisation (of C-fibres)
Central sensitisation

20

Clinical problems of MIH(3)

Loss of tooth substance (enamel breakdown, tooth wear, secondary caries)
Sensitivity
Appearance

21

MIH treatment (4)

Composite/GIC restorations
Stainless steel crowns
Adhesively retained copings
Extraction (8.5-9.5yrs)

22

Treatment of affected incisors (5)

Acid pumice microabrasion
External bleaching
Localised composite placement
Full composite veneers
Full porcelain veneers