The effect of zoledronate-containing primer on dentin bonding of a universal adhesive.

Autor: Zenobi W; Post-Graduate Program in Dentistry, Dental School, Department of Restorative Dentistry, Federal University of Ceará, Rua Monsenhor Furtado S/N, Bairro Rodolfo Teófilo, 60430-325 Fortaleza, Brazil., Feitosa VP; Post-Graduate Program in Dentistry, Dental School, Department of Restorative Dentistry, Federal University of Ceará, Rua Monsenhor Furtado S/N, Bairro Rodolfo Teófilo, 60430-325 Fortaleza, Brazil; Paulo Picanço School of Dentistry, Fortaleza, Brazil. Electronic address: victorpfeitosa@hotmail.com., Moura MEM; Post-Graduate Program in Dentistry, Dental School, Department of Restorative Dentistry, Federal University of Ceará, Rua Monsenhor Furtado S/N, Bairro Rodolfo Teófilo, 60430-325 Fortaleza, Brazil., D'arcangelo C; Unit of Restorative Dentistry, Department of Oral Science, Nano and Biotechnology, 'G. D'Annunzio' University of Chieti, Italy., Rodrigues LKA; Post-Graduate Program in Dentistry, Dental School, Department of Restorative Dentistry, Federal University of Ceará, Rua Monsenhor Furtado S/N, Bairro Rodolfo Teófilo, 60430-325 Fortaleza, Brazil., Sauro S; Post-Graduate Program in Dentistry, Dental School, Department of Restorative Dentistry, Federal University of Ceará, Rua Monsenhor Furtado S/N, Bairro Rodolfo Teófilo, 60430-325 Fortaleza, Brazil; Dental Biomaterials, Departmento de Odontologia, Facultad de Ciencias de la Salud, CEU-Cardenal Herrera University, Alfara del Patriarca, 46115 Valencia, Spain.
Jazyk: angličtina
Zdroj: Journal of the mechanical behavior of biomedical materials [J Mech Behav Biomed Mater] 2018 Jan; Vol. 77, pp. 199-204. Date of Electronic Publication: 2017 Sep 14.
DOI: 10.1016/j.jmbbm.2017.09.015
Abstrakt: Objectives: To evaluate the bonding ability and nanoleakage of a universal adhesive applied to dentin pre-treated using a zoledronate-containing primer (zol-primer) before and after mechanical load cycling.
Materials and Methods: Flat dentin surfaces obtained from human molars were assigned to one of the following adhesion procedures (n=6): 1-Single Bond Universal (SBU) applied in etch-and-rinse mode; 2- SBU applied as etch-and-rinse after the application of zol-primer; 3- SBU applied in self-etch strategy; 4- SBU applied as self-etch after the use of zol-primer. Half of the specimens were processed for microtensile bond strength test after 24h, while the other half part was submitted to 200,000 mechanical cycles. Further specimens were silver-impregnated and assessed for interface nanoleakage by SEM. Data were analyzed with two-way ANOVA and Tukey's test (p<0.05).
Results: At 24h evaluation, the four groups presented similar bond strengths, whilst both groups bonded with etch-and-rinse technique showed significant bond strength reduction after mechanical load (p<0.05), with the highest drop in bond strength for the specimens pre-treated with the zol-primer. No negative effects were found for self-etch strategy (p>0.05) in microtensile test. Lower nanoleakage expression was observed for etch-and-rinse specimens treated with zol-primer. However, noteworthy reduction of adhesive layer thickness was observed when combining the zol-primer with the self-etch bonding approach.
Conclusion: It can be concluded that zol-primer should not be used along with a universal adhesive in etch-and-rinse mode, but its application before self-etch application may provide less degradation of the resin-dentin interface.
(Copyright © 2017 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: