Survey of first permanent molars of 7 - 12-year-old students in Huairou district, Beijing in 2010 / 中华全科医师杂志

ABSTRACT

The first permanent molar caries and current status of sealant of 7 - 12-year-old students were surveyed in Huairou district of Beijing.Based on the World Health Organization and national oral health survey standards,cluster and stratified random sampling methods were used.The prevalence rate of deciduous tooth caries was 17.34％ with a decayed/missing/filled teeth (dmft) index of 0.30.The caries rate of females was higher than that of males (20.60％ vs.14.08％ ).The incidence of mandible was higher than that of maxillary.And there was no significant difference around the jaw.The rate of fissure sealant was 51.36％.The current status of first permanent molar caries in this district was in accordance with the characteristics of general epidemiological caries disease.An overall policy of early discovery,early diagnosis and early treatment should be practiced.