Effect of operator variability and patient age on the retention of fissure sealant resin: 3‐year results

Results of a 3‐year clinical trial of Delton fissure sealant resin are reported. 41 % of first molar fissures remained fully sealed after 3 years. Significant differences were found between the levels of resin retention produced by the two operators and retention was significantly better on mandibular molars than on maxillary molars. In a separate group of 11‐year‐old children 77% of fissures were full)’sealed after 3 years.