Dental Enamel Hypoplasia Humans 12 human 12 enamel hypoplasia 11 child 10 female 10 male 10 Child 9 Female 9 Male 9 adult 5 Adolescent 4 Adult 4 Children 4 Middle Aged 4 Prevalence 4 Surveys and Questionnaires 4 adolescent 4 middle aged 4 prevalence 4 questionnaire 4 Dental Enamel 3 Molar 3 Molar incisor hypomineralisation 3 dental procedure 3 enamel 3 incisor 3 molar tooth 3 procedures 3 Child, Preschool 2