INFLUENCE OF A SODIUM HYPOCHLORITE GEL ON MICROLEAKAGE OF COMPOSITE RESIN RESTORATIONS

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Journal of the Korean Academy of Pediatric Dentistry 2003;30(1):54-60.
Published online February 28, 2003.

INFLUENCE OF A SODIUM HYPOCHLORITE GEL ON MICROLEAKAGE OF COMPOSITE RESIN RESTORATIONS

차아염소산 나트륨의 사용이 복합레진 수복물의 미세누출에 미치는 영향

양계식, 김대업, 이광희, 정영남

원광대학교 치과대학 소아치과학교실.원광치의학연구소

Abstract

This study evaluated the influence of chemomechanical caries removal agent Carisolv^TM}(MediTeam, Sweden) for composite resin adhesion to sound human permanent and primary dentin. The buccal/labial surfaces of 80 permanent molars and 80 primary incisors were used. Four types of adhesives and one composite resin were used; AQ Bond(Sun Medical, Japan), Clearfil SE Bond(Kuraray, Japan), Single Bond(3M, USA), Scotchbond Multi-Purpose(3M, USA) and Z100(3M, USA). One drop of Carisolv^TM}(MediTeam, Sweden) was pretreated on the dentin for 0 second(control) and 60 seconds. The specimens were thermocycled for 1,000 times in baths kept 5 degrees C and 55 degrees C with a 30 seconds dwell time. Shear bond strengths were tested and the data was statistically analyzed using one-way ANOVA with subsequent post hoc Scheffe test at p<0.05. Carisolv^TM} treatment significantly decreased the shear bond strength. Shear bond strength of permanent dentin was significantly higher than that of primary dentin. Clearfil SE Bond treatment groups showed the highest shear bond strength and AQ Bond treatment groups showed the lowest shear bond strength.

Key Words: Microleakage, Primary teeth, AD gel, Composite resin, Dentin adhesive, Hybrid layer