Sealing of preventively enlarged fissures.
The occlusal fissures of 156 permanent first molars in 63 children, 7--8 years of age, were sealed with a chemically polymerizing material (Delton). Deep and narrow fissures were opened up with a pointed diamond before etching and sealing. The treatment was performed by untrained dental students. The patients were called back for treatment every 6 months. 2/3 of the patients were followed up for a period of 2 1/2 years. After that period the retention of sealants was 93% (74 sealants) in ground deep fissures and 88% (28 sealants) in unground shallow fissures.
D000134:Acid Etching, Dental; D002648:Child; D003731:Dental Caries / Q000517:prevention & control; D005500:Follow-Up Studies; D006801:Humans; D008963:Molar; D010756:Phosphoric Acids; D010895:Pit and Fissure Sealants
D010756:Phosphoric Acids; D010895:Pit and Fissure Sealants