Journal of the Korean Academy of Pediatric Dentistry 1999;26(2):416-426.
Published online May 31, 1999.
THE EFFECT OF PRIMER ON PENETRATION OF SEALANT
 
Abstract
The objective of this study is to confirm the effect of dentine bonding primer application on penetration of sealant. Extracted permanent molars were used to compare penetration success rate of control group (sealant application only) and experimental groups (sealant application after applying the primers of ScotchbondTM Multi-Purpose system and All-Bond® 2 system). The following results were obtained: 1. The experimental groups using the primers showed increased sealant penetration success rate to the base of fissure when compared to control group but there was no statistically significant differences(p>0.05). 2. The depth, width and 'depth/width' value of fissure had statistically significant effect on sealant penetration success rate(p<0.05). 3. The penetration success rate decreased about 0.9 times as the depth of fissure increased every 25μm, and increased about 1.1 times as the width of the fissure orifice increased every 25μm and decreased about 0.6 times as the 'depth/width' value increased every 1. From the above results, it can be concluded that assure morphology had a great effect on sealant penetration and for better penetration, use of dentine bonding primer can be helpful but it needs more study in clinical bases.
Key Words: penetration, primer, sealant


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