Dental caries and first permanent molar pit and fissure morphology in 7-to 8-year-old children in Wuhan,China

作     者：Jin-Dong Wang Xi Chen Jo Frencken Min-Quan Du Zhi Chen 

作者机构：Key Laboratory for Oral Biomedicine of Ministry of EducationSchool and Hospital of StomatologyWuhan UniversityWuhanChina Shenzhen Maternal and Children's HospitalShenzhenChina Department of Global Oral HealthRadboud University Nijmegen Medical CentreCollege of Dental SciencesNijmegenThe Netherlands 

出 版 物：《International Journal of Oral Science》 (国际口腔科学杂志（英文版）)

年 卷 期：2012年第4卷第3期

页      面：157-160页

核心收录：

学科分类：02[经济学] 0202[经济学-应用经济学] 020208[经济学-统计学] 081702[工学-化学工艺] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0714[理学-统计学（可授理学、经济学学位）] 070103[理学-概率论与数理统计] 0701[理学-数学] 

基　　金：国家自然科学基金 Youth Foundation of Sichuan Province in China 

主　　题：dental caries oral epidemiology plaque tooth morphology 

摘      要：To obtain the caries experience and, plaque accumulation severity and pit and fissure morphology in first permanent molars in 7-8 children in Wuhan, as a reasonable prediction of caries risk and preventive attention in the future, a convenient sample of five primary schools in the vicinity of the Wuhan University School and Hospital of Stomatology was drawn. Two calibrated examiners orally examined all present grade 2 children in the classroom, using standard caries plaque and tooth morphology criteria. Dental caries was scored at enamel （D2） and dentine （D3） for tooth and surface level. Independent variables were age, gender and school. Data analysis used analysis of variance and t-test. The sample comprised 1 043 7- and 8-year-olds. The prevalence of dental caries in permanent dentition was 8.7% and in primary dentition, 68.7%. Mean Decayed, Missing, Filled Teeth/S （DMFT/S） scores were 0.1 1 and . 14, respectively. Mean dmft/s scores were 2.8 and 5.0. The d-component constituted 75% of the d3mft index, while enamel carious lesions constituted 36% of the total number of carious lesions （d2,3-component）. Prevalence of medium and deep pits and fissures was 84.6%. Prevalence of medium and severe plaque accumulation was 67.4%. Prevalence of dental caries in the deciduous and permanent dentitions of 7- to 8-year-old children was high. Deed oits and fissures in high caries risk children should be sealed_