Evaluation DMFT and CPTIN Indices and Related Personal Behaviors in the 12-Years-Old Students

Background: Dental caries and periodontal diseases are one of the most important oral health problems around the world. Children of all age groups are affected by dental caries. It seems that data collection on prevalence of tooth decays and treatment needs is necessary to provide preventive care. Objectives: Therefore, the present study was done to evaluate DMFT and CPTIN indices and personal behaviors in the 12-year-old school children in the city of Zahedan. Methods: In this descriptive-analytical study, Zahedan city was divided into two regions (based on socio-economical situation); 10 school (boys and girls) from each region and 47 students from each school, were randomly selected. DMFT and CPTIN indices of 942, 12-year-old school children (based on world health organization (WHO) criteria) were evaluated. Data were analyzed by SPSS 19, t-test, and chi-square. Results: The mean DMFT in the studied population was 0.94±0.5 (1.18±0.5 in girls and 0.7±0.38 in boys). Tooth decay component was the essential component of DMFT index (0.62 for boys and 1 for girls). A total of 70.7% (666 ones) of individuals 74.3% of boys (327 ones) and 67.5% of girls (339 ones) were caries free and 29.3% (276 persons) had dental caries. Dental caries rate in two genders no significantly differed (P < 0.05) 18% of students (12.7% in girls and 5.3% in boys) had a CPTIN score 0. 67% of individuals (32.7% in girls and 34.3% in boys) had a CPTIN score of 1. In addition, 15% of subjects (7.9% in girls and 7.1% in boys) had a CPTIN score of 2. Periodontal status in two genders significantly differed (P < 0.01). A total of 47.8% subjects who brushed before sleeping had good OHI-s while only 18.6% of subjects who never brushed had good OHI-s. This difference was significant (P < 0.05). Conclusions: The mean DMFT score in 12 year old school children was lower than the global standards presented by WHO. Dental caries rate was low in studied population. Peridontal health status in girls was better than boys. People who brushed their teeth before sleeping had a desirable oral health status. For 12 year old children, oral health education is necessary in improving oral