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      Amelogenesis imperfecta: prevalence and incidence in a northern Swedish county.

      Community Dentistry and Oral Epidemiology
      Adolescent, Adult, Amelogenesis Imperfecta, diagnosis, epidemiology, pathology, Child, Child, Preschool, Female, Humans, Male, Sweden

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          Abstract

          The aim of the study was to establish the prevalence and incidence of amelogenesis imperfecta (AI) in the county of Västerbotten, northern Sweden using the criteria of Witkop & Sauk (1976). The diagnoses were based upon clinical and radiographic evidence. The study-population consisted of all 3-19-yr-olds born in the county from 1963 to 1979. AI was diagnosed in 79 children, 41 girls and 38 boys, giving a prevalence of 1.4:1000. The mean incidence 1963-79 was 1.3:1000. Half of the children with AI had brothers or sisters in the group. The hypoplastic form was the most common (58 children) followed by the hypomaturation form (16 children). Only five children had the hypomineralization form.

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          Hereditary Disturbances of Enamel Formation and Calcification**From the Research Department, Loyola University, School of Dentistry, Chicago College of Dental Surgery, and the Department of Health and Welfare, Bureau of Health, Division of Dental Health, Augusta, Maine.

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            Classification and prevalence of enamel opacities in the human deciduous and permanent dentitions

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              Amelogenesis imperfecta among Israeli Jews and the description of a new type of local hypoplastic autosomal recessive amelogenesis imperfecta.

              Amelogenesis imperfecta (AI) was detected in nine of 70,359 school children surveyed, a prevalence approximating 1:8,000. Of these cases, eight were the hypoplastic type and one the snow-capped hypomaturation type. Family studies demonstrated that hypoplastic AI was an autosomal dominant trait in two children and an autosomal recessive in six. Of three additional families referred to our clinic, two had autosomal recessive hypoplastic AI and one the hypocalcified type, inherited as an autosomal dominant trait. In four families, a new type of local hypoplastic autosomal recessive AI was observed, characterized by horizontal pitting and grooving more pronounced in the middle third of the crowns of most teeth in both dentitions.
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                Author and article information

                Journal
                3456873
                10.1111/j.1600-0528.1986.tb01493.x

                Chemistry
                Adolescent,Adult,Amelogenesis Imperfecta,diagnosis,epidemiology,pathology,Child,Child, Preschool,Female,Humans,Male,Sweden

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