Effect of different chlorhexidine application times on microtensile bond strength to dentin in Class I cavities
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Objectives: This study evaluated the effect of 2% chlorhexidine digluconate (CHX)with different application times on microtensile bonds strength (MTBS) to dentin in class I cavities and intended to search for ideal application time for a simplified bonding protocol. Materials and Methods: Flat dentinal surfaces with class I cavities (4 mm x 4 mm x 2 mm) in 40 molar teeth were bonded with etch-and-rinse adhesive system, Adper Single Bond 2 (3M ESPE) after: (1) etching only as a control group; (2)etching + CHX 5 sec + rinsing; (3) etching + CHX 15 sec + rinsing; (4) etching + CHX 30 sec + rinsing; and (5) etching + CHX 60 sec + rinsing. Resin composite was builtup with Z-250 (3M ESPE) using a bulk method and polymerized for 40 sec. For each condition, half of the specimens were immediately submitted to MTBS test and the rest of them were assigned to thermocycling of 10,000 cycles between 5°C and 55°C before testing. The data were analyzed using two-way ANOVA, at a significance level of 95%. Results: There was no significant difference in bond strength between CHX pretreated group and control group at the immediate testing period. After thermocycling, all groups showed reduced bond strength irrespective of the CHX use. However, groups treated with CHX maintained significantly higher MTBS than control group (p < 0.05). In addition, CHX application time did not have any significant influence on the bond strength among groups treated with CHX. Conclusion: Application of 2% CHX for a short time period (5 sec) after etching with 37% phosphoric acid may be sufficient to preserve dentin bond strength.
Abstract
Objectives: This study evaluated the effect of 2% chlorhexidine digluconate (CHX)with different application times on microtensile bonds strength (MTBS) to dentin in class I cavities and intended to search for ideal application time for a simplified bonding protocol. Materials and Methods: Flat dentinal surfaces with class I cavities (4 mm x 4 mm x 2 mm) in 40 molar teeth were bonded with etch-and-rinse adhesive system, Adper Single Bond 2 (3M ESPE) after: (1) etching only as a control group; (2)etching + CHX 5 sec + rinsing; (3) etching + CHX 15 sec + rinsing; (4) etching + CHX 30 sec + rinsing; and (5) etching + CHX 60 sec + rinsing. Resin composite was builtup with Z-250 (3M ESPE) using a bulk method and polymerized for 40 sec. For each condition, half of the specimens were immediately submitted to MTBS test and the rest of them were assigned to thermocycling of 10,000 cycles between 5°C and 55°C before testing. The data were analyzed using two-way ANOVA, at a significance level of 95%. Results: There was no significant difference in bond strength between CHX pretreated group and control group at the immediate testing period. After thermocycling, all groups showed reduced bond strength irrespective of the CHX use. However, groups treated with CHX maintained significantly higher MTBS than control group (p < 0.05). In addition, CHX application time did not have any significant influence on the bond strength among groups treated with CHX. Conclusion: Application of 2% CHX for a short time period (5 sec) after etching with 37% phosphoric acid may be sufficient to preserve dentin bond strength.
참고문헌 (34)
- De Munck J, "A critical review of the durability of adhesion to tooth tissue: methods and results", J Dent Res, 84, pp.118~132 (2005)
- Breschi L, "Dental adhesion review: aging and stability of the bonded interface", Dent Mater, 24, pp.90~101 (2008)
- Wang Y, "Hybridization efficiency of the adhesive", dentin interface with wet bonding, 2003, pp.82, 141~145
- Wang Y, "Continuing etching of an all-in-one adhesive in wet dentin tubules", J Dent Res, 84, pp.350~354 (2005)
- Yui CK, "Effect of resin hydrophilicity and water storage on resin strength", Biomaterials, 25, pp.5789~5796 (2004)
- Carrilho MR, "Mechanical stability of resin-dentin bond components", Dent Mater, 21, pp.232~241 (2005)
- Hashimoto M, "In vitro degradation of resin-dentin bonds analyzed by microtensile bond test, scanning and transmission electron microscopy", Biomaterials, 24, pp.3795~3803 (2003)
- Pashley DH, "Collagen degradation by hostderived enzymes during aging", J Dent Res, 83, pp.216~221 (2004)
- Soares CJ, "Effect of chlorhexidine application on microtensile bond strength to dentin", Oper Dent, 33, pp.183~188 (2008)
- Nakabayashi N, "The promotion of adhesion by the infiltration of monomers into tooth substrates", J Biomed Mater Res, 16, pp.265~273 (1982)
- Van Meerbeek B, "Buonocore memorial lecture,In Adhesion to enamel and dentin: current status and future challenges", Oper Dent, 28, pp.215~235 (2003)
- Yoshida Y, "A novel approach to AFM characterization of adhesive tooth-biomaterial interfaces", J Biomed Mater Res, 47, pp.85~90 (1999)
- Spencer P, "Adhesive phase separation at the dentin interface under wet bonding conditions", J Biomed Mater Res, 62, pp.447~456 (2002)
- Hashimoto M, "The extent to which resin can infiltrate dentin by acetone-based adhesives", J Dent Res, 81, pp.74~78 (2002)
- Tay FR, "Two modes of nanoleakage expression in single-step adhesives", J Dent Res, 81, pp.472~476 (2002)
- Tjäderhane L, "The activation and function of host matrix metalloproteinases in dentin matrix breakdown in caries lesions", J Dent Res, 77, pp.1622~1629 (1998)
- Sulkala M, "The localization of matrix metalloproteinases-20 (MMP- 20, enamelysin) in mature human teeth", J Dent Res, 81, pp.603~607 (2002)
- Van Strijp AJ, "Host-derived proteinases and degradation of dentine collagen in situ", Caries Res, 37, pp.58~65 (2003)
- Lee W, "Evidence of a direct relationship between neutrophil collagenase activity and periodontal tissue destruction in vivo: role of active enzyme in human periodontitis", J Periodont Res, 30, pp.23~33 (1995)
- Hebling J, "Chlorhexidine arrests subclinical degradation of dentin hybrid layers in vivo", J Dent Res, 84, pp.741~746 (2005)
- Brackett WW, "The effect of chlorhexidine on dentin hybrid layers in vivo", Oper dent, 32, pp.107~111 (2007)
- Carrilho MR, "Chlorhexidine preserves dentin bond in vitro", J Dent Res, 86, pp.90~94 (2007)
- Carrilho MR, "In vivo preservation of the hybrid layer by chlorhexidine", J Dent Res, 86, pp.529~533 (2007)
- Stanley A, "The in vitro effects of chlorhexidine on subgingival plaque bacteria", J Clin Periodontol, 16, pp.259~264 (1989)
- 복영빈, "The sustaining effect of three polymers on the release of chlorhexidine from a controlled release drug (CRD) device for root canal disinfection", Restorative Dentistry and Endodontics, 29(6), pp.548~554 (2004), 대한치과보존학회
- Tay FR, "Have dentin adhesives become too hydrophilic?", J Can Dent Assoc, 69, pp.726~731 (2003)
- Stanislawczuk R, "Chlorhexidine-containing acid conditioner preserves the longevity of resin-dentin bonds", Oper Dent, 34, pp.481~490 (2009)
- Chang YE, "Effect of chlorhexidine application methods on microtensile bond strength to dentin in Class I cavities", Oper Dent, 35, pp.618~623 (2010)
- de Castro FL, "Effect of 2% chlorhexidine on microtensile bond strength of composite to dentin", J Adhes Dent, 5, pp.129~138 (2003)
- Perdigao J, "Effects of chlorhexidine on dentin surfaces and shear bond strengths", Am J Dent, 7, pp.81~84 (1994)
- Fardal O, "A review of the literature on use of chlorhexidine in dentistry", J Am Dent Assoc, 112, pp.863~869 (1986)
- 김예미, "와동의 형태가 상아질과 복합레진 사이의 미세인장결합강도에 미치는 영향", Restorative Dentistry and Endodontics, 33(5), pp.472~480 (2008), 대한치과보존학회
- Loguercio AD, "Influence of chlorhexidine digluconate concentration and application time on resin-dentin bond strength durability", Eur J Oral Sci, 117, pp.587~596 (2009)
- Tay FR, "Realtion between water content in acetone", alcohol-based primer and interfacial ultrastructure, 1998, pp.26, 147~156