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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Bond strength and morphology of enamel using self-etching adhesive systems with different acidities

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Author(s):
Moura, Sandra Kiss [1] ; Reis, Alessandra [2] ; Pelizzaro, Arlete [3] ; Dal-Bianco, Karen [3] ; Loguercio, Alessandro Dourado [2] ; Arana-Chavez, Victor Elias ; Miranda Grande, Rosa Helena [4]
Total Authors: 7
Affiliation:
[1] Univ Norte Parana, Dept Dent, Londrina, PR - Brazil
[2] Univ Estadual Ponta Grossa, Dept Operat Dent & Dent Mat, Ponta Grossa, PR - Brazil
[3] Univ Western Santa Catarina, Dept Operat Dent & Dent Mat, Joacaba, SC - Brazil
[4] Univ Sao Paulo, Fac Odontol, Dept Dent Mat, Sch Dent, BR-05508000 Sao Paulo - Brazil
Total Affiliations: 4
Document type: Journal article
Source: Journal of Applied Oral Science; v. 17, n. 4, p. 315-325, JUL-AUG 2009.
Web of Science Citations: 22
Abstract

OBJECTIVES: To assess the bond strength and the morphology of enamel after application of self-etching adhesive systems with different acidities. The tested hypothesis was that the performance of the self-etching adhesive systems does not vary for the studied parameters. MATERIAL AND METHODS: Composite resin (Filtek Z250) buildups were bonded to untreated (prophylaxis) and treated (bur-cut or SiC-paper) enamel surfaces of third molars after application of four self-etching and two etch-and-rinse adhesive systems (n=6/condition): Clearfil SE Bond (CSE); OptiBond Solo Plus Self-Etch (OP); AdheSe (AD); Tyrian Self Priming Etching (TY), Adper Scotchbond Multi-Purpose Plus (SBMP) and Adper Single Bond (SB). After storage in water (24 h/37°C), the bonded specimens were sectioned into sticks with 0.8 mm² cross-sectional area and the microtensile bond strength was tested at a crosshead speed of 0.5 mm/min. The mean bond strength values (MPa) were subjected to two-way ANOVA and Tukey's test (α=0.05). The etching patterns of the adhesive systems were also observed with a scanning electron microscope. RESULTS: The main factor adhesive system was statistically significant (p<0.05). The mean bond strength values (MPa) and standard deviations were: CSE (20.5±3.5), OP (11.3±2.3), AD (11.2±2.8), TY (11.1±3.0), SBMP (21.9±4.0) and SB (24.9±3.0). Different etching patterns were observed for the self-etching primers depending on the enamel treatment and the pH of the adhesive system. CONCLUSION: Although there is a tendency towards using adhesive systems with simplified application procedures, this may compromise the bonding performance of some systems to enamel, even when the prismless enamel is removed. (AU)