Abstract
(1967). Prevalence of Periodontal Disease IR Ceylon: Association with Age, Sex, Oral Hygiene, Socio-Economic Factors, Vitamin Deficiencies, Malnutrition, Betel and Tobacco Consumption and Ethnic Group Final Report. Acta Odontologica Scandinavica: Vol. 25, No. 2, pp. 205-230. doi: 10.3109/00016356709028749

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