Determination of the caries free prevalence in 12 year-old students in guidance schools in Sirjan city in 1996

Abstract: Caries free is an epidemiologic index for prevalence of dental caries in a society and it means that persons who do not have any dental caries, in other words, that equal to DMF=0. To determine the prevalence of caries free in 12 year-old students in guidance school in Sirjan City, this study was carried out with the method of WHO Index in 1996. On the basis of a pilot study the of sample size was determined to be 300 persons (150 girls and 150 boys). This sample was selected by stratified cluster sampling. After dental examination and filling the WHO forms, the obtained data were statistically analyzed and the results were as follows. 34.7 percent of 12 year-old (boy and girl) adolescent were caries free. 39.3 percent of boys and 30 percent of girls in this study were caries free. According to WHO index caries prevalence was 65.3% in 12-year-old adolescents in Sirjan which is considered relatively low. Keywords: Dental caries, Caries free, Sirjan cit

Healthy dietary patterns and incidence of CKD: A meta-analysis of cohort studies

Whether a healthy dietary pattern may prevent the incidence of developing CKD is unknown. This study evaluated the associations between dietary patterns and the incidence of CKD in adults and children.This systematic review and meta-analysis identified potential studies through a systematic search of MEDLINE, Embase and references from eligible studies from database inception to February 2019. Eligible studies were prospective and retrospective cohort studies including adults and children without CKD, where the primary exposure was dietary patterns. To be eligible, studies had to report on the primary outcome, incidence of CKD (eGF