Dental anomalies

Question 1

Define MIH

Answer 1

Molar-incisor hypomineralisation - hypomineralisation of one to four first permanent molars frequently associated with affected incisors (Weerijm et al 2001)

Question 2

What is the prevalence of MIH?

Answer 2

3.6-25%

Question 3

List the clinical features of MIH?

Answer 3

• Permanent dentition
• Defect seen in first molars and incisors
• Soft porous chalky enamel
• Opacities well demarked
• Asymmetrical defects
• Association of hypomineralisation of primary seconds molars (E) suggests predictor of MIH