title: [Clinical effect of pit and fissure sealant used in combination with different etching adhesive and 3M-Z350 flowable resin on young permanent teeth].
abstract: OBJECTIVE
  To compare the effect of different etching adhesive and flowable resin in deep pits and fissures of young permanent molars sealant technique.
  
  
  METHODS
  Children aged 6-8 years old were included in the study. The split mouth design was used. The first permanent molars were randomly assigned into 2 experimental groups:A and B.The teeth in group A were sealed with flowable resin and self-etching adhesive,while the teeth in group B were sealed with flowable resin and phosphate acid system. The children were followed up every year, and the sealants were observed and evaluated. SPSS13.0 software package was used for statistical analysis.
  
  
  RESULTS
  After 1 year, 2 and 3 years,the retention rate of group A was significantly lower than that of group B(P<0.05),while group A had more caries than group B(P<0.05) except at 1-year.
  
  
  CONCLUSIONS
  Self-etching adhesive and flowable resin doesn't have excellent clinical effect on caries prevention.
authors.affiliation: Yangpu Dental Clinic, Shanghai, China. xml79@126.com
authors.forename: Quan-lin
authors.initials: QL
authors.lastname: Xu
authors.forename: Pei-hong
authors.initials: PH
authors.lastname: Ji
mesh_terms: D000269:Adhesives; D002648:Child; D003731:Dental Caries; D006801:Humans; D008963:Molar; D010895:Pit and Fissure Sealants; D013499:Surface Properties
chemical_list: D000269:Adhesives; D010895:Pit and Fissure Sealants