Influence of chemical and natural cross-linkers on dentin bond strength of self-etching adhesives

Autor(es)

Pinto, Cristiane Franco ^[1] ; Berger, Sandrine Bittencourt ^[2] ; Cavalli, Vanessa ^[3] ; Bedran-Russo, Ana Karina ^[4] ; Giannini, Marcelo ^[5]

Afiliação do(s) autor(es)

^[1] Univ Sao Francisco, Dept Restorat Dent, BR-12916350 Braganca Paulista, SP - Brazil

^[2] Univ Northen Parana, Dept Restorat Dent, BR-86041140 Londrina, PR - Brazil

^[3] Sao Leopoldo Mand Dent Sch & Res Ctr, Dept Restorat Dent, BR-13045755 Campinas, SP - Brazil

^[4] Univ Illinois, Chicago Coll Dent, Dept Restorat Dent, Chicago, IL 60612 - USA

^[5] Univ Estadual Campinas, Dept Restorat Dent, Piracicaba Sch Dent, BR-13414018 Piracicaba, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES; v. 60, p. 117-122, JUL 2015.
• Citações Web of Science: 6

Resumo

Objectives. The objective of this study was to evaluate the effect of chemical collagen cross-linkers on the bond strength of three self-etching adhesives to dentin. Materials and methods. Exposed dentin from the buccal surface of 45 incisors bovine was used to analyze the effect of chemical cross-linkers. The control groups were tested with self-etching adhesives (Clearfil SE Bond, Clearfil SE Protect and One-up Bond F Plus) according to the manufacturer instructions. Two cross-linkers agents were tested: 5% glutaraldehyde and 6.5% proanthocyanidin-rich grape seed extract (both for 10 mm). After surface treatments with the agents, the surfaces were washed with distilled water, followed by the bonding/build-up procedures. Restored teeth were prepared for microtensile bond strength test and specimens tested in a universal testing machine (0.5 mm/min) after 24 h storage. Fracture sites of the bonded interface qualitatively evaluated. Results. According to two-way ANOVA and Tukey test (p < 0.05) glutaraldehyde pretreatment did not affect the microtensile bond strength of any of two self-etching systems (p > 0.05). However, when the grape seed extract was used with Clearfil SE Bond, the dentin bond strength values increased (p < 0.05), but decrease for the One-up Bond F Plus treated-group (p < 0.05). For the Clearfil SE Protect there was no difference between treatments (p > 0.05). Conclusions. The effect of the application of grape seed extract cross-linker was product-dependent and glutaraldehyde did not affect the bond strength to dentin. (C) 2015 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 06/53828-2 - Analise da uniao e dos tecidos dentais (esmalte/dentina) adjacentes as restauracoes com sistemas adesivos contendo fluoreto apos desafios cariogenicos in situ e in vitro.
• Beneficiário: Cristiane Franco Pinto
• Modalidade de apoio: Bolsas no Brasil - Doutorado