ABSTRACT
Timing and sequence of eruption of primary teeth were studied longitudinally in 164 healthy Australian children. Eruption of primary teeth typically began between 7 and 8 months and was completed by 28 months. Tooth eruption was not significantly related to growth rate or to psychomotor maturity. Comparison of the eruption ages in this study with those from longitudinal studies in other countries suggests that no real changes in these have occurred over 40 yr despite increased affluence in industrialised countries over that period.
Subject(s)
Tooth Eruption , Tooth, Deciduous/physiology , Age Factors , Australia , Body Height , Child, Preschool , Female , Humans , Infant , Longitudinal Studies , Male , Sex FactorsABSTRACT
Investigations carried out on 6--14 year-old Aboriginal children resident at Bathurst Island and Groote Eylandt showed that the Groote Eylandt children had a higher prevalence of dental caries at statistically significant levels. This difference in prevalence was attributed to the greater financial affluence at Groote Eylandt.
Subject(s)
Dental Caries/epidemiology , Native Hawaiian or Other Pacific Islander , Adolescent , Age Factors , Australia , Child , Diet , Education , Housing , Humans , Occupations , Socioeconomic FactorsABSTRACT
A system is described for fluoridation of a small community water supply. The design of the equipment is presented in relation to the requirements of a particular isolated region and in a basis for application to other similar areas. The problems found during the establishment of this system and their solution can be valuable as a guide for other communities.
