Caries Prevalence of the First Permanent Molars in 1731 Pupils / 中国医师杂志

ABSTRACT

Objective To investigate the caries prevalence of the first permanent molars among pupils in Zhongshan City in order to improve the level of oral health and to provide the direction and evidence for prevention and treatment strategies of caries.Methods Oral first permanent molars were examined among 1731 pupils aged from 7 to 12 years old in Zhongshan Experimental Primary School. The data were analyzed by SPSS 10 0 for Windows.Results The mean caries prevalent rate of first permanent molars was 32 62% among 1731 examined pupils with the mean DMFT of 0 48.Thefemales’meancariesprevalentrateandDMFToffirstpermanentmolarswerebothhigherthanmales’ .Theseven -yearoldgrouphadthelowest cariesprevalentrateandDMFTthanotheragegroups .Theocclusalsurfacewasthemostcommonsurfaceamongthecariesfirstpermanentmolarwith percentageof 73 5 2 .Conclusion Toprotectthefirstpermanentmolar ,weshouldreinforceoralhealtheducation ,regularexaminationoralhealth ,car ryingoutthefitandfissureseal,andfillingthedecayedteethintime .