title: Effect of Surface Treatment with Er;Cr:YSSG, Nd:YAG, and CO2 Lasers on Repair Shear Bond Strength of a Silorane-based Composite Resin.
abstract: Background and aims. The aim of the present study was to compare the effect ofsurface treatment with Er; Cr:YSSG, Nd:YAG, and CO2 lasers on repair shear bond strength of a silorane-based composite resin. Materials and methods. Sixty eight cylindrical samples of a silorane-based composite resin (Filtek Silorane) were pre-pared and randomly divided into 4 groups as follows: group 1: without surface treatment; groups 2, 3 and 4 with surface treatments using Er; Cr:YSSG, Nd:YAG, and CO2 lasers, respectively. A positive control group (group 5) was assigned in order to measure cohesive strength. Repair shear bond strength values were measured and data was analyzed using one-way ANOVA and a post hoc Tukey test at a significance level of α=0.05. Results. There were statistically significant differences in repair shear bond strength values between group 2 and other groups (P < 0.05); and between group 1and groups 3and 4 (P < 0.001); however, there were no significant differences be-tween groups 3 and 4 (P = 0.91). Conclusion. The repair shear bond strength of silorane-based composite resin was acceptable by surface treatment with lasers.
authors.affiliation: Dntal and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran ; Associate Professor, Department of Operative Dentistry, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Parnian
authors.initials: P
authors.lastname: Alizadeh Oskoee
authors.forename: Narmin
authors.initials: N
authors.lastname: Mohammadi
authors.forename: Mohammad Esmaeel
authors.initials: ME
authors.lastname: Ebrahimi Chaharom
authors.forename: Soodabeh
authors.initials: S
authors.lastname: Kimyai
authors.forename: Fatemeh
authors.initials: F
authors.lastname: Pournaghi Azar
authors.forename: Sahand
authors.initials: S
authors.lastname: Rikhtegaran
authors.forename: Maryam
authors.initials: M
authors.lastname: Shojaeei
keywords: Composite resin; laser; repair; silorane; surface treatment