Effect of Chlorhexidine on Dentin Bond Strength of Two Adhesive Systems after Storage in Different Media

Brazilian Dental Journal - Tập 26 Số 6 - Trang 642-647 - 2015
Enio Marcos da Silva1, Daniel Hatschbach Glir1, Allana Walesca Martins Castanho Gill1, Allan Fernando Giovanini1, Adilson Yoshio Furuse2, Carla Castiglia Gonzaga1
1Graduate Program in Dentistry, UP - Universidade Positivo, Curitiba, PR, Brazil
2Department of Operative Dentistry, Endodontics and Dental Materials, Bauru Dental School, USP - Universidade de Sao Paulo, Bauru, SP, Brazil

Tóm tắt

The aim of this study was to evaluate the effect of 2% chlorhexidine (CHX) application during the bonding protocol on microshear bond strength of two adhesive systems, after storage in different media. Seventy-two human molars had their crowns cut in half and embedded in PVC cylinders with acrylic resin. The specimens were randomly divided into experimental groups (n=12) according to the adhesive system (Ambar and Single Bond 2), use of CHX in the bonding protocol, and time interval (24 h and 15 days) in the storage media (distilled water, mineral oil and 1% sodium hypochlorite - NaOCl). Adhesive systems were applied in accordance to manufacturers' recommendations, with or without the use of CHX, and resin composite (Z350 XT) cylinders were placed on the hybridized dentin. After photoactivation, the specimens were stored in distilled water, mineral oil and 1% NaOCl for 24 h and 15 days. Microshear bond strength was determined at a crosshead speed of 0.5 mm/min until fracture. The bond strength data were analyzed statistically by 4-way ANOVA and Tukey's test (α=5%). Use of CHX in the bonding protocol did not cause loss of bond strength in any of the evaluated situations, irrespective of time and storage medium. The storage medium had no influence on bond strength values after 15 days when the bond protocol without CHX application was used. However, the use of CHX in the protocol influenced negatively the bond strength values for Single Bond 2 after 15 days storage in distilled water and 1% NaOCl.

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Tài liệu tham khảo

Breschi L, 2008, Dental adhesion review: aging and stability of the bonded interface, Dent Mater, 24, 90, 10.1016/j.dental.2007.02.009

Hashimoto M, 2000, The effect of hybrid layer thickness on bond strength: demineralized dentin zone of the hybrid layer, Dent Mater, 16, 406, 10.1016/S0109-5641(00)00035-X

Eliades G, 2001, Heterogeneous distribution of single-bottle adhesive monomers in the resin-dentin interdiffusion zone, Dent Mater, 277, 10.1016/S0109-5641(00)00082-8

Sencer P, 2001, Molecular structure of acid-etched dentin smear layers - in situ study, J Dent Res, 80, 1802, 10.1177/00220345010800090601

Pashley DH, 2004, Collagen degradation by host-derived enzymes during aging, J Dent Res, 83, 216, 10.1177/154405910408300306

Mazzoni A, 2006, Reactivation of inactivated endogenous proteolytic activities in phosphoric acid-etched dentine by etch-and-rinse adhesives, Biomaterials, 27, 4470, 10.1016/j.biomaterials.2006.01.040

Carrilho MR, 2007, Chlorhexidine preserves dentin bond in vitro, J Dent Res, 86, 90, 10.1177/154405910708600115

Breschi L, 2010, Chlorhexidine stabilizes the adhesive interface: a 2-year in vitro study, Dent Mater, 26, 320, 10.1016/j.dental.2009.11.153

Ricci HA, 2010, Chlorhexidine increases the longevity of in vivo resin-dentin bonds, Eur J Oral Sci, 118, 411, 10.1111/j.1600-0722.2010.00754.x

Carrilho MR, 2005, Durability of resin-dentin bonds related to water and oil storage, Am J Dent, 18, 315

Montagner AF, 2015, Effect of pre-treatment with chlorhexidine on the retention of restorations: a randomized controlled trial, Braz Dent J, 26, 234, 10.1590/0103-6440201300009

Frankenberger R, 2004, The effect of six years of water storage on resin composite bonding to human dentin, J Biomed Mater Res B Appl Biomater, 69, 25, 10.1002/jbm.b.20024

De Munck J, 2007, NaOCl degradation of a HEMA-free all-in-one adhesive bonded to enamel and dentin following two air-blowing techniques, J Dent, 35, 74, 10.1016/j.jdent.2006.05.001

Yamauti M, 2003, Degradation of resin-dentin bonds using NaOCl storage, Dent Mater, 19, 399, 10.1016/S0109-5641(02)00083-0

Goncalves LS, 2009, Effect of storage and compressive cycles on the bond strength after collagen removal, Oper Dent, 34, 681, 10.2341/08-064-L

Pioch T, 2001, Nanoleakage at the composite-dentin interface: a review, Am J Dent, 14, 252

Francisconi-dos-Rios LF, 2015, Role of chlorhexidine in bond strength to artificially eroded dentin over time, J Adhes Dent, 17, 133

Moon PC, 2010, Review of matrix metalloproteinases' effect on the hybrid dentin bond layer stability and chlorhexidine clinical use to prevent bond failure, Open Dent J, 4, 147, 10.2174/1874210601004010147

Souza M, 2012, Evaluation of chlorhexidine substantivity on human dentin: a chemical analysis, J Endod, 38, 1249, 10.1016/j.joen.2012.06.003

Francisconi-dos-Rios LF, 2015, Chlorhexidine does not improve but preserves bond strength to eroded dentin, Am J Dent, 28, 28

De Munck J, 2005, One-day bonding effectiveness of new self-etch adhesives to bur-cut enamel and dentin, Oper Dent, 30, 39

De Munck J, 2003, Microtensile bond strengths of one- and two-step self-etch adhesives to bur-cut enamel and dentin, Am J Dent, 16, 414

Monticelli F, 2007, Resistance to degradation of resin-dentin bonds using a one-step HEMA-free adhesive, J Dent, 35, 181, 10.1016/j.jdent.2006.07.005

Yoshida E, 2004, Deproteinizing effects on resin-tooth bond structures, J Biomed Mater Res B Appl Biomater, 68, 29, 10.1002/jbm.b.10080

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Brazilian Dental Journal

Tập 26 Số 6

642-647

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