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[The problems in studying the prevalence and the organization of the prevention of maxillodental anomalies in children].

Methodological aspects of studies of the prevalence and organization of prevention of maxillodental abnormalities in children are discussed, effects of a number of factors on the incidence of such abnormalities shown. The author emphasizes that prevention of abnormalities should start in early age and be based on an individual approach to a child. A conclusion is made on the necessity of development of a unified program of epidemiological study of abnormalities in the country.