Table A1.

Summary of tooth related data on 742 MIH teeth with regard to dentition.

	742 MIH Teeth
	% (n)
	Anterior-Group * (55.1%/n = 409)	Posterior-Group * (44.9%/n = 333)
Deciduous teeth	7.3 (30)	30.0 (100)
Permanent teeth	92.7 (379)	70.0 (233)
Total	100 (409)	100 (333)

Abbreviations: MIH = molar incisor hypomineralization. * Anterior-Group was defined as any symptomatic hypomineralized Incisor or Canine, which might have also included a asymptomatic MIH molar. Posterior-Group was defined as any molar, which was affected by MIH. Control-Group patients had no MIH teeth at all.