TY - JOUR
T1 - Can 1% chlorhexidine diacetate and ethanol stabilize resin-dentin bonds?
AU - Manso, Adriana Pigozzo
AU - Grande, Rosa Helena Miranda
AU - Bedran-Russo, Ana Karina
AU - Reis, Alessandra
AU - Loguercio, Alessandro D.
AU - Pashley, David Henry
AU - Carvalho, Ricardo Marins
N1 - Funding Information:
The authors gratefully acknowledge the support given by Bisco Inc. and Grants: CNPq #142216/2007-0; CNPq #307319/2006-7; CNPq #305075/2006-3; CNPq # 307510/10-7; R01-DE-015306-6 from the NIDCR .
PY - 2014/7
Y1 - 2014/7
N2 - Objectives To examine the effects of the combined use of chlorhexidine and ethanol on the durability of resin-dentin bonds. Methods Forty-eight flat dentin surfaces were etched (32% phosphoric acid), rinsed (15 s) and kept wet until bonding procedures. Dentin surfaces were blot-dried with absorbent paper and re-wetted with water (water, control), 1% chlorhexidine diacetate in water (CHD/water), 100% ethanol (ethanol), or 1% chlorhexidine diacetate in ethanol (CHD/ethanol) solutions for 30 s. They were then bonded with All Bond 3 (AB3, Bisco) or Excite (EX, Ivoclar-Vivadent) using a smooth, continuous rubbing application (10 s), followed by 15 s gentle air stream to evaporate solvents. The adhesives were light-cured (20 s) and resin composite build-ups constructed for the microtensile method. Bonded beams were obtained and tested after 24-h, 6-months and 15-months of water storage at 37 °C. Storage water was changed every month. Effects of treatment and testing periods were analyzed (ANOVA, Holm-Sidak, p < 0.05) for each adhesive. Results There were no interactions between factors for both etch-and-rinse adhesives. AB3 was significantly affected only by storage (p = 0.003). Excite was significantly affected only by treatments (p = 0.048). AB3 treated either with ethanol or CHD/ethanol resulted in reduced bond strengths after 15 months. The use of CHD/ethanol resulted in higher bond strengths values for Excite. Conclusions Combined use of ethanol/1% chlorhexidine diacetate did not stabilize bond strengths after 15 months.
AB - Objectives To examine the effects of the combined use of chlorhexidine and ethanol on the durability of resin-dentin bonds. Methods Forty-eight flat dentin surfaces were etched (32% phosphoric acid), rinsed (15 s) and kept wet until bonding procedures. Dentin surfaces were blot-dried with absorbent paper and re-wetted with water (water, control), 1% chlorhexidine diacetate in water (CHD/water), 100% ethanol (ethanol), or 1% chlorhexidine diacetate in ethanol (CHD/ethanol) solutions for 30 s. They were then bonded with All Bond 3 (AB3, Bisco) or Excite (EX, Ivoclar-Vivadent) using a smooth, continuous rubbing application (10 s), followed by 15 s gentle air stream to evaporate solvents. The adhesives were light-cured (20 s) and resin composite build-ups constructed for the microtensile method. Bonded beams were obtained and tested after 24-h, 6-months and 15-months of water storage at 37 °C. Storage water was changed every month. Effects of treatment and testing periods were analyzed (ANOVA, Holm-Sidak, p < 0.05) for each adhesive. Results There were no interactions between factors for both etch-and-rinse adhesives. AB3 was significantly affected only by storage (p = 0.003). Excite was significantly affected only by treatments (p = 0.048). AB3 treated either with ethanol or CHD/ethanol resulted in reduced bond strengths after 15 months. The use of CHD/ethanol resulted in higher bond strengths values for Excite. Conclusions Combined use of ethanol/1% chlorhexidine diacetate did not stabilize bond strengths after 15 months.
KW - Bonding
KW - Chlorhexidine
KW - Dentin
KW - Ethanol-wet bonding
KW - Stability
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U2 - 10.1016/j.dental.2014.04.003
DO - 10.1016/j.dental.2014.04.003
M3 - Article
C2 - 24815823
AN - SCOPUS:84901926664
SN - 0109-5641
VL - 30
SP - 735
EP - 741
JO - Dental Materials
JF - Dental Materials
IS - 7
ER -