[Caries prevalence of the first permanent molar among 7-9 years old Uygur children in Urumqi, Xinjiang Autonomous Region].
OBJECTIVE
To investigate the caries status of the first permanent molar among 7-9 years old Uygur children in Urumqi, Xinjiang Autonomous Region, and provide bases for the oral health care of children in Urumqi.


METHODS
The study was conducted in a preschool in Urumqi, Xinjiang Autonomous Region, involving 1600 children aged among 7-9 years old. The dental caries of these children were examined by 2 general dentists according to the criteria of the Third National Epidemiological Survey in China. Data were analyzed by SPSS16.0 software package for X(2) test and student's t test.


RESULTS
The prevalence of caries in the first permanent molar among these children was 26.50%, with a mean DMFT of 0.44. The caries prevalence in boys was 22.98% and 30% in girls (P<0.05). The DMFT in boys and girls was 0.41, 0.47, respectively. The caries prevalence increased along with the increase of age. The caries prevalence of 9-year-old children was significantly higher than that in 7 and 8-year-old children (P<0.05).


CONCLUSIONS
The caries prevalence of the first permanent molar among 7-9 years old children in Urumqi, Xinjiang Autonomous Region is high. It is necessary to enhance the early guidance for the Uygur children to develop good oral health habits and status. Supported by 2010 West China Children's Oral Disease Interventional Polit Project.
.Dental Clinic, People's Hospital, Uygur Autonomous Region. Urumqi 830001, Xinjiang Autonomous Region;China.E-mail:920327779@qq.com.
Amuti
A
Riziwaguli
Yasheng
Y
Asiya
Yuan
Y
Liu
Ran
R
Yang
Jing
J
Zou
D002648:Child; D002681:China; D003731:Dental Caries; D005260:Female; D006801:Humans; D008297:Male; D008963:Molar; D009909:Oral Health; D015995:Prevalence