The effect of additional etching and curing mechanism of composite resin on the dentin bond strength
2
조회
0
다운로드
3
인용
0
참고문헌
키워드
초록
PURPOSE. The aim of this study was to evaluate the effects of additional acid etching and curing mechanism (light-curing or self-curing) of a composite resin on the dentin bond strength and compatibility of one-step selfetching adhesives. MATERIALS AND METHODS. Sixteen human permanent molars were randomly divided into eight groups according to the adhesives used (All-Bond Universal: ABU, Clearfil S3 Bond: CS3), additional acid etching (additional acid etching performed: EO, no additional acid etching performed: EX), and composite resins (Filtek Z-250: Z250, Clearfil FII New Bond: CFNB). Group 1: ABU-EO-Z250, Group 2: ABU-EO-CFNB, Group 3: ABU-EX-Z250, Group 4: ABU-EX-CFNB, Group 5: CS3-EO-Z250, Group 6: CS3-EO-CFNB, Group 7: CS3- EX-Z250, Group 8: CS3-EX-CFNB. After bonding procedures, composite resins were built up on dentin surfaces. After 24-hour water storage, the teeth were sectioned to make 10 specimens for each group. The microtensile bond strength test was performed using a microtensile testing machine. The failure mode of the fractured specimens was examined by means of an optical microscope at ×20 magnification. The data was analyzed using a one-way ANOVA and Scheffe’ post-hoc test (α=.05). RESULTS. Additional etching groups showed significantly higher values than the no additional etching group when using All-Bond Universal. The light-cured composite resin groups showed significantly higher values than the self-cured composite resin groups in the Clearfil S3 Bond. CONCLUSION. The additional acid etching is beneficial for the dentin bond strength when using low acidic one-step self-etch adhesives, and low acidic one-step self-etch adhesives are compatible with self-cured composite resin. The acidity of the one-step self-etch adhesives is an influencing factor in terms of the dentin bonding strength and incompatibility with a self-cured composite resin.
Abstract
PURPOSE. The aim of this study was to evaluate the effects of additional acid etching and curing mechanism (light-curing or self-curing) of a composite resin on the dentin bond strength and compatibility of one-step selfetching adhesives. MATERIALS AND METHODS. Sixteen human permanent molars were randomly divided into eight groups according to the adhesives used (All-Bond Universal: ABU, Clearfil S3 Bond: CS3), additional acid etching (additional acid etching performed: EO, no additional acid etching performed: EX), and composite resins (Filtek Z-250: Z250, Clearfil FII New Bond: CFNB). Group 1: ABU-EO-Z250, Group 2: ABU-EO-CFNB, Group 3: ABU-EX-Z250, Group 4: ABU-EX-CFNB, Group 5: CS3-EO-Z250, Group 6: CS3-EO-CFNB, Group 7: CS3- EX-Z250, Group 8: CS3-EX-CFNB. After bonding procedures, composite resins were built up on dentin surfaces. After 24-hour water storage, the teeth were sectioned to make 10 specimens for each group. The microtensile bond strength test was performed using a microtensile testing machine. The failure mode of the fractured specimens was examined by means of an optical microscope at ×20 magnification. The data was analyzed using a one-way ANOVA and Scheffe’ post-hoc test (α=.05). RESULTS. Additional etching groups showed significantly higher values than the no additional etching group when using All-Bond Universal. The light-cured composite resin groups showed significantly higher values than the self-cured composite resin groups in the Clearfil S3 Bond. CONCLUSION. The additional acid etching is beneficial for the dentin bond strength when using low acidic one-step self-etch adhesives, and low acidic one-step self-etch adhesives are compatible with self-cured composite resin. The acidity of the one-step self-etch adhesives is an influencing factor in terms of the dentin bonding strength and incompatibility with a self-cured composite resin.
참고문헌 (23)
- Buonocore MG, "A simple method of increasing the adhesion of acrylic filling materials to enamel surfaces", J Dent Res, 34, pp.849~853 (1955)
- Nakabayashi N, "Bonding to intact dentin", J Dent Res, 75, pp.1706~1715 (1996)
- Tay FR, "Micromorphological spectrum of acid-conditioned dentin following the application of a water-based adhesive", Dent Mater, 14, pp.329~338 (1998)
- Walshaw PR, "Clinical considerations for optimal dentinal bonding", Quintessence Int, 27, pp.619~625 (1996)
- Van Landuyt KL, "Bond strength of a mild self-etch adhesive with and without prior acid-etching", J Dent, 34, pp.77~85 (2006)
- Pashley DH, "Aggressiveness of contemporary selfetching adhesives. Part II: etching effects on unground enamel", Dent Mater, 17, pp.430~444 (2001)
- Gokce K, "Effect of phosphoric acid etching and self-etching primer application methods on dentinal shear bond strength", J Adhes Dent, 10, pp.345~349 (2008)
- Ikeda M, "Influence of previous acid etching on dentin bond strength of self-etch adhesives", J Oral Sci, 51, pp.527~534 (2009)
- Cheong C, "Incompatibility of self-etch adhesives with chemical", dual-cured composites: two-step vs one-step systems, 2003, pp.28, 747~755
- Schittly E, "Compatibility of five self-etching adhesive systems with two resin luting cements", J Adhes Dent, 12, pp.137~142 (2010)
- Tay FR, "Factors contributing to the incompatibility between simplified-step adhesives and chemically-cured or dual-cured composites. Part I. Single-step self-etching adhesive", J Adhes Dent, 5, pp.27~40 (2003)
- Tay FR, "Effect of smear layers on the bonding of a self-etching primer to dentin", J Adhes Dent, 2, pp.99~116 (2000)
- Perdigao J, "Total-etch versus self-etch adhesive: effect on postoperative sensitivity", J Am Dent Assoc, 134, pp.1621~1629 (2003)
- Unemori M, "Selfetching adhesives and postoperative sensitivity", Am J Dent, 17, pp.191~195 (2004)
- Tay FR, "How can nanoleakage occur in self-etching adhesive systems that demineralize and infiltrate simultaneously", J Adhes Dent, 4, pp.255~269 (2002)
- Miyazaki M, "Durability of enamel bond strength of simplified bonding systems", Oper Dent, 25, pp.75~80 (2000)
- Hashimoto M, "Resin-enamel bonds made with self-etching primers on ground enamel", Eur J Oral Sci, 111, pp.447~453 (2003)
- Van Landuyt KL, "Extension of a one-step self-etch adhesive into a multi-step adhesive", Dent Mater, 22, pp.533~544 (2006)
- Lutz F, "Dental restorative resins. Types and characteristics", Dent Clin North Am, 27, pp.697~712 (1983)
- Sanares AM, "Adverse surface interactions between one-bottle light-cured adhesives and chemical-cured composites", Dent Mater, 17, pp.542~556 (2001)
- Ruyter IE, "Unpolymerized surface layers on sealants", Acta Odontol Scand, 39, pp.27~32 (1981)
- Yamauchi J, "Study of dental adhesive containing phosphoric acid methacrylate monomer", Jap J Dent Mater, 5, pp.144~154 (1986)
- Hagge MS, "Shear bond strength of an autopolymerizing core buildup composite bonded to dentin with 9 dentin adhesive systems", J Prosthet Dent, 86, pp.620~623 (2001)