A STUDY ON THE MICROLEAKAGE OF PIT AND FISSURE SEALANTS WITH DIFFERENT FILLING AMOUNT

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Journal of the Korean Academy of Pediatric Dentistry 2003;30(2):238-244.
Published online May 31, 2003.

A STUDY ON THE MICROLEAKAGE OF PIT AND FISSURE SEALANTS WITH DIFFERENT FILLING AMOUNT

치면열구전색재의 충전량에 따른 미세누출의 비교연구

박수진, 정태성, 김신

부산대학교 치과대학 소아치과학교실

Abstract

With the purpose of evaluating the effect of ailing amount of pit and assure sealants on the microleakage, 6 groups of specimens with different filling amount, filling materials and surface pretreatment were investigated. Sixty permanent third molars were divided into three groups. The occlusal surface of each tooth was divided into two parts; the filing width of one part was below 1mm (group1, 3, 5), and in the other part more than 2mm (group 2, 4, 6) Group 1 and 2: Helioseal F was applied directly to etched enamel; Group 3 and 4: Helioseal F was applied to etched and scotchbond Multi-purpose plus pre-treated enamel; Group 5 and 6: Tetric Flow was applied. After 500 times thermocycling and dye infiltration, we evaulated the microleakage. The results were as follows; 1. The mean microleakage score at each width were increased in the following order;group 5<3<1, and group 6<4<2. 2. In comparing the groups with same material and surface pretreatment but with different filling width (group 1 versus 2, 3 versus 4, 5 versus 6), the microleakage scores were significantly different. 3 The microleage was affected by filling amount of pit and assure sealants than Oiling materials and dentin bonding agent pretreatment.

Key Words: Pit and fissure sealant, Filling amount, Microleakage