Molar Incisor Hypomineralization, Prevalence, and Etiology

Table 3

Prevalence of MIH according to diagnostic criteria.

MIH defect type	Frequency	Percent	𝜒^2	𝑃 value
Demarcated opacities	13	56.5	14.043	0.003*
Posteruptive breakdown (PEB)	6	26.1
Demarcated Opacities and PEB	2	8.7
PEB and atypical restorations	2	8.7
Total	23	100.0

^∗𝑃 value is significant at 0.05 level.