The anticaries effects of pit and fissure sealant in the first permanent molars of school-age children from Guangzhou: a population-based cohort study

• DOI: 10.1186/s12903-019-0846-x
• Publication Date: 2019-07-16T13:03:19Z
• Authors: Weijia Liu; Lihua Xiong; Jianbo Li; Chongshan Guo; Weihua Fan; Shaohong Huang
• Keywords: Fissure

Analyses of the effects pit and fissure sealant have been based on small samples lack large-scale field evaluation data in China. The aim this study was to understand effect preventing caries first permanent molars (FPMs) children Guangzhou. We conducted a population-based cohort using database program carious status retention FPMs were assessed 4,822 school who received 3 years prior study. control group included 4,396 had indications for receiving but not treated matched according sex, age school. In group, rate 72.2%. Children 37% decreased risk dental compared with (adjusted HR = 0.63 [95% confidence interval (CI), 0.57–0.69], P < 0.001). Compared no use, use sealants reduced developing by 44% after from rural areas, reflecting greater reduction than that among urban (35%) during same period (urban: adjusted hazard ratio (HR) 0.65 CI, 0.58–0.72]; rural: 0.56 0.45–0.70], mean number decayed, missing, or filled teeth (DMFT) higher difference statistically significant regardless sex. Pit has preventive against FPMs, especially areas; thus, represents an effective technique controlling caries.