Glass ionomer and resin‐based fissure sealants: a clinical study

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Abstract
– The aim of this study was to compare the retention rate of a glass ionomer cement formulated for fissure sealing with two resin‐based sealants. 208 occlusal fissures of permanent molars and premolars were sealed with either Fuji III, Delton or Concise WS by four dentists. Clinical assessments and a replica scoring technique were used to register the performance of the sealants at baseline, after 6–12 months, and then yearly up to 5 yr. As judged clinically, 61% of the glass ionomer sealants were lost within 6–12 months and 84% after 30–36 months. Although total loss was recorded clinically for the majority of the glass ionomer sealants, some retained sealant was observed in the tooth replicas in 93%, of them. The clinical evaluation of the resin‐based sealants showed an average complete retention rate of 90% after 4.5–5 yr. The corresponding figure with the replica technique was 58%. Caries was recorded in 5% of the resin‐based and in none of the glass ionomer sealed surfaces.