1. Sundell S, Koch G . Hereditary amelogenesis imperfecta 1: epidemiology and clinical classification in a Swedish child population. Swed Dent J 1985; 9: 157–169.
2. Pindborg JJ . Aetiology of developmental enamel defects not related to fluorosis. Int Dent J 1982; 32: 123–134.
3. Brook AH, Fearne JM, Smith JM . Dental enamel: environmental causes of enamel defects. In Chadwick D, Cardew G. (eds) Dent Enamel. Chichester: Wiley, 1997. pp 212–223.
4. Beentjes VEVM, Weerheijm KL, Groen HJ . Factors involved in the aetiology of molar-incisor hypomineralisation(MIH). Eur J Paediatr Dent 2002; 3: 9–13.
5. Koch G, Hallonsten AL, Ludvigsson N, Hansson BO, Holst A, Ulbro C . Epidemiological study of idiopathic enamel hypomineralisation in permanent teeth of Swedish children. Community Dent Oral Epidemiol 1987; 15: 279–285.