title: Do light cured ART conventional high-viscosity glass-ionomer sealants perform better than resin-composite sealants: a 4-year randomized clinical trial.
abstract: OBJECTIVE
  The hypotheses tested were: the cumulative survival rates of dentin caries lesion-free pits and fissures of ART conventional high-viscosity glass-ionomer sealants with light-curing (high-intensity LED) and glass-carbomer sealants are higher than those of conventional ART sealants and resin-composite sealants after 4 years.
  
  
  METHODS
  The randomized controlled clinical trial covered 405 children (mean age 8-years). Three dentists placed sealants in pits and fissures of high caries-risk children. Evaluation by two independent evaluators was conducted after 0.5, 1, 2, 3 and 4 years. The Kaplan-Meier survival method, ANOVA and t-test were used in data analyses.
  
  
  RESULTS
  1304 first permanent molars were sealed. 12.3% of children and 15.4% of sealants dropped out. 46 re-exposed pits and fissures, 39 (occlusal) 7 (free smooth surfaces), in 42 children developed a dentin carious lesion. The cumulative survival of dentin caries lesion-free occlusal pits and fissures in ART plus LED group (98%) was statistically significantly higher than in the resin-composite group (96.4%) and in the glass-carbomer group (94.5%). The cumulative survival of dentin caries lesion-free occlusal pits and fissures in the glass-carbomer group was statistically significantly lower than that in the conventional ART group (97.3%). For the free smooth surfaces, there was no statistically significantly difference among the four sealant groups.
  
  
  CONCLUSIONS
  Light-cured ART conventional high-viscosity glass-ionomer sealants prevented the occurrence of dentin cavities best.
authors.affiliation: Preventive Department, Key Laboratory for Oral Biomedical Engineering, School and Hospital of Stomatology, Wuhan University, Wuhan, PR China.
authors.forename: WeiWei
authors.initials: W
authors.lastname: Zhang
authors.affiliation: Preventive Department, Key Laboratory for Oral Biomedical Engineering, School and Hospital of Stomatology, Wuhan University, Wuhan, PR China.
authors.forename: Xi
authors.initials: X
authors.lastname: Chen
authors.affiliation: Preventive Department, Key Laboratory for Oral Biomedical Engineering, School and Hospital of Stomatology, Wuhan University, Wuhan, PR China. Electronic address: fmw@whuss.com.
authors.forename: Ming-Wen
authors.initials: MW
authors.lastname: Fan
authors.affiliation: Department of Global Oral Health, College of Dental Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands.
authors.forename: Jan
authors.initials: J
authors.lastname: Mulder
authors.affiliation: Department of Preventive and Curative Dentistry, College of Dental Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands.
authors.forename: Marie-Charlotte C D N J M
authors.initials: MC
authors.lastname: Huysmans
authors.affiliation: Department of Global Oral Health, College of Dental Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands. Electronic address: Jo.Frencken@radboudumc.nl.
authors.forename: Jo E
authors.initials: JE
authors.lastname: Frencken
mesh_terms: D002648:Child; D003188:Composite Resins; D055117:Curing Lights, Dental; D003731:Dental Caries / Q000628:therapy; D005260:Female; D005899:Glass Ionomer Cements; D006801:Humans; D008297:Male
chemical_list: D003188:Composite Resins; D005899:Glass Ionomer Cements
keywords: Atraumatic restorative treatment; Caries prevention; Glass-carbomer; Glass-ionomer cement; Resin composite; Sealants