A comparative study of two pit and fissure sealants: results after 4 1/2 years in Augusta, Ga.

A total of 220 children were examined at 4 1/2 years (54 months) after a single application of a pit and fissure sealant. In 110 children, 177 permanent first molars were treated with Nuva-Seal; and in 110 children, 168 permanent first molars were treated with Delton. Nuva-Seal was completely retained on 35% of all paired permanent molars, partially retained on 21%, and completely lost on 44% of the study teeth. Delton was completely retained on 72% of all paired permanent molars, partially retained on 14%, and completely lost on 14% of the study teeth. These data indicate that occlusal caries protection on permanent molars is assured if the sealant is completely retained on the tooth. Delton was four times more effective in providing protection against pit and fissure caries than Nuva-Seal.