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The idea of fissure sealing has found wide acceptance in caries prevention. The present investigation was initiated to evaluate the retention of a diluted composite material used as a fissure sealant, compared with the retention of an UV-light polymerized sealant. After an observation period of 3 years, it seems justified to assume that a diluted composite sealant is a fully acceptable alternative to an UV-light polymerized sealant, and the former material seemed to have some advantages: a simpler polymerization procedure, an apparently better wear resistance due to ceramic filler particles, and an easier recognition because of a slight discoloration.
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H Ulvestad (1976) studied this question.
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