Effect of different mechanical and chemical surface treatments on the repaired bond strength of an indirect composite resin
| Autor: | Soodabeh Kimyai, Hafez Vahedpour, Mahmoud Bahari, Parnian Alizadeh Oskoee, Narmin Mohammadi, Sahand Rikhtegaran, Siavash Savadi Oskoee |
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| Rok vydání: | 2013 |
| Předmět: |
Dental Stress Analysis
Materials science Post hoc Surface Properties Bond strength Composite number Dental Bonding Lasers Solid-State Dermatology Microscopy Atomic Force Composite Resins Resin Cements Air Abrasion Dental Resins Synthetic Air abrasion Surface preparation Adhesives Nd:YAG laser Adhesive system Microscopy Electron Scanning Surgery Stress Mechanical Adhesive Composite material |
| Zdroj: | Lasers in Medical Science. 30:653-659 |
| ISSN: | 1435-604X 0268-8921 |
| DOI: | 10.1007/s10103-013-1391-5 |
| Popis: | This study compared the effects of two mechanical surface preparation techniques, air abrasion and Nd:YAG laser, with the use of two adhesive systems, self-etch and etch and rinse, on the repair bond strengths of an indirect composite resin. One hundred fifty cylindrical samples of an indirect composite resin were prepared and randomly divided into six groups (n = 25). In groups 1–3, the composite resin surfaces were respectively prepared as follows: no roughening, roughening by air abrasion, and roughening by Nd:YAG laser, followed by application of an etch-and-rinse adhesive. In groups 4–6, the preparation techniques were respectively the same as those in groups 1–3, followed by application of a self-etch adhesive. Subsequently, a direct composite resin was added and repair bond strengths were measured. Data were analyzed with two-way ANOVA and post hoc Tukey's test. Mean bond strength value was significant based on the preparation technique (P < 0.001), i.e., in air abrasion and Nd:YAG laser groups, bond strengths were significantly higher compared to no-preparation groups (P < 0.0005). There were significant differences in bond strength values between air abrasion and Nd:YAG laser groups, with significantly higher values in air abrasion groups (P < 0.0005). However, there were no significant differences in bond strength values between the adhesive systems. Furthermore, the cumulative effects of the adhesive system and the surface preparation technique were not significant. Surface preparation of the indirect composite resin with air abrasion and Nd:YAG laser resulted in a significant increase in the repair bond strength, with air abrasion being more effective. There were no significant differences in bond strength between the two adhesives. |
| Databáze: | OpenAIRE |
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