Ringkasan :
to investigate cross-sectionally a probable dental caries decline in Belgian 12-yr-olds and to analyse some factors that may be associated with dental caries during the study period. Methods: In the region of Brussels, children in the 7th grade at the same schools were sampled in 1983 (n½533) and 1998 (n½ 496).

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Diproses dalam : 0.15232706069946 detik