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Effect of Mechanical Surface Treatment on the Repair Bond Strength of the Silorane-based Composite Resin.

Alizadeh Oskoee P, Kimyai S, Talatahari E, Rikhtegaran S, Pournaghi-Azar F, Sajadi Oskoee J - J Dent Res Dent Clin Dent Prospects (2014)

Bottom Line: The topographical effects of surface treatments were characterized under a scanning electron microscope.Results.Conclusion.

View Article: PubMed Central - HTML - PubMed

Affiliation: Professor, Department of Operative Dentistry, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran.

ABSTRACT
Background and aims. A proper bond must be created between the existing composite resin and the new one for successful repair. The aim of this study was to compare the effect of three mechanical surface treatments, using diamond bur, air abrasion, and Er,Cr:YSGG laser, on the repair bond strength of the silorane-based composite resin. Materials and methods. Sixty cylindrical composite resin specimens (Filtek Silorane) were fabricated and randomly divided into four groups according to surface treatment: group 1 (control group) without any mechanical surface treatment, groups 24 were treated with air abrasion, Er,Cr:YSGG laser, and diamond bur, respectively. In addition, a positive control group was assigned in order to measure the cohesive strength. Silorane bonding agent was used in groups 14 before adding the new composite resin. Then, the specimens were subjected to a shear bond strength test and data was analyzed using one-way ANOVA and post hoc Tukey tests at a significance level of P &0.05. The topographical effects of surface treatments were characterized under a scanning electron microscope. Results. There were statistically significant differences in the repair bond strength values between groups 1 and 2 and groups 3 and 4 (P &0.001). There were no significant differences between groups 1 and 2 (P = 0.98) and groups 3 and 4 (P= 0.97). Conclusion. Surface treatment using Er,Cr:YSGG laser and diamond bur were effective in silorane-based composite resin repair.

No MeSH data available.


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Mentions: The micrographs of surface topographies of the four study groups are presented in Figure 2. In the Er, Cr: YSGG laser group, a clearly visible and homogeneous micro-retentive feature was seen in the form of surface depressions. Diamond bur prepared the surface in a linear pattern. On the other hand, both the control and air-abraded groups had relatively smooth surfaces.


Effect of Mechanical Surface Treatment on the Repair Bond Strength of the Silorane-based Composite Resin.

Alizadeh Oskoee P, Kimyai S, Talatahari E, Rikhtegaran S, Pournaghi-Azar F, Sajadi Oskoee J - J Dent Res Dent Clin Dent Prospects (2014)

© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4120906&req=5

Mentions: The micrographs of surface topographies of the four study groups are presented in Figure 2. In the Er, Cr: YSGG laser group, a clearly visible and homogeneous micro-retentive feature was seen in the form of surface depressions. Diamond bur prepared the surface in a linear pattern. On the other hand, both the control and air-abraded groups had relatively smooth surfaces.

Bottom Line: The topographical effects of surface treatments were characterized under a scanning electron microscope.Results.Conclusion.

View Article: PubMed Central - HTML - PubMed

Affiliation: Professor, Department of Operative Dentistry, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran.

ABSTRACT
Background and aims. A proper bond must be created between the existing composite resin and the new one for successful repair. The aim of this study was to compare the effect of three mechanical surface treatments, using diamond bur, air abrasion, and Er,Cr:YSGG laser, on the repair bond strength of the silorane-based composite resin. Materials and methods. Sixty cylindrical composite resin specimens (Filtek Silorane) were fabricated and randomly divided into four groups according to surface treatment: group 1 (control group) without any mechanical surface treatment, groups 24 were treated with air abrasion, Er,Cr:YSGG laser, and diamond bur, respectively. In addition, a positive control group was assigned in order to measure the cohesive strength. Silorane bonding agent was used in groups 14 before adding the new composite resin. Then, the specimens were subjected to a shear bond strength test and data was analyzed using one-way ANOVA and post hoc Tukey tests at a significance level of P &0.05. The topographical effects of surface treatments were characterized under a scanning electron microscope. Results. There were statistically significant differences in the repair bond strength values between groups 1 and 2 and groups 3 and 4 (P &0.001). There were no significant differences between groups 1 and 2 (P = 0.98) and groups 3 and 4 (P= 0.97). Conclusion. Surface treatment using Er,Cr:YSGG laser and diamond bur were effective in silorane-based composite resin repair.

No MeSH data available.


Related in: MedlinePlus