title: Retention and effectiveness of a chemically polymerized pit and fissure sealant after 12 months.
abstract: The aim of the present study was to evaluate the retention and effectiveness of a bis-GMA type of fissure sealant which polymerizes after conventional mixing of the two catalyst/activator components (Concise Enamel Bond System). Unilateral sealing of homologous pairs of permanent first molars was carried out by a dental hygienist. Of the 451 sealed sites sealant was present in 73%, partly missing in 8%, and completely missing in 18% after 1 year. The effectiveness of the treatment in preventing occlusal caries was highly significant and the caries reduction was found to be about 70%. A strong relationship between status of sealant and occlusal decay was demonstrated. The shortcomings of the half-mouth design when evaluating sealants as a caries-preventive measure in public dental health programs are discussed.
mesh_terms: D002648:Child; D003731:Dental Caries / Q000517:prevention & control*; D003764:Dental Materials; D004341:Drug Evaluation; D006801:Humans; D010895:Pit and Fissure Sealants; D011108:Polymers; D013997:Time Factors
chemical_list: D003764:Dental Materials; D010895:Pit and Fissure Sealants; D011108:Polymers