Effectiveness of Silica-Lasing Method on the Bond Strength of Composite Resin Repair to Ni-Cr Alloy

Effectiveness of Silica-Lasing Method on the Bond Strength of Composite Resin Repair to Ni-Cr Alloy Publisher Pubmed

Madani AS¹ ; Astaneh PA² ; Nakhaei M¹ ; Bagheri HG³ ; Moosavi H⁴ ; Alavi S⁵ ; Najjaran NT⁵

Show Affiliations

1. Department of Prosthodontics, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
2. Department of Prosthodontics, Faculty of Dentistry, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
3. Department of Dental Materials, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
4. Dental Material Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
5. Department of Restorative Dentistry, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran

Source: Journal of Prosthodontics Published:2015

Abstract

Purpose: The aim of this study was to evaluate the effectiveness of silica-lasing method for improving the composite resin repair of metal ceramic restorations. Materials and Methods: Sixty Ni-Cr cylindrical specimens were fabricated. The bonding surface of all specimens was airborne-particle abraded using 50 μm aluminum oxide particles. Specimens were divided into six groups that received the following surface treatments: group 1-airborne-particle abrasion alone (AA); group 2-Nd:YAG laser irradiation (LA); group 3-silica coating (Si-CO); group 4-silica-lasing (metal surface was coated with slurry of opaque porcelain and irradiated by Nd:YAG laser) (Si-LA); group 5-silica-lasing plus etching with HF acid (Si-LA-HF); group 6-CoJet sand lased (CJ-LA). Composite resin was applied on metal surfaces. Specimens were thermocycled and tested in shear mode in a universal testing machine. The shear bond strength values were analyzed using ANOVA and Tukey's tests (α = 0.05). The mode of failure was determined, and two specimens in each group were examined by scanning electron microscopy and wavelength dispersive X-ray spectroscopy. Results: Si-CO showed significantly higher shear bond strength in comparison to other groups (p < 0.001). The shear bond strength values of the LA group were significantly higher than those of the AA group (p < 0.05). No significant difference was found among lased groups (LA, Si-LA, Si-LA-HF, CJ-LA; p > 0.05). The failure mode was 100% adhesive for AA, Si-LA, Si-LA-HF, and CJ-LA. LA and Si-CO groups showed 37.5% and 87.5% cohesive failure, respectively. Conclusion: Silica coating of Ni-Cr alloy resulted in higher shear bond strength than those of other surface treatments. © 2014 by the American College of Prosthodontists.

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Farhad Shafiei (1)

Azam Sadat Mostafavi (1)

Style	Citing Format
MLA	Madani AS, et al.. "Effectiveness of Silica-Lasing Method on the Bond Strength of Composite Resin Repair to Ni-Cr Alloy." Journal of Prosthodontics, vol. 24, no. 3, 2015, pp. 225-232.
APA	Madani AS, Astaneh PA, Nakhaei M, Bagheri HG, Moosavi H, Alavi S, Najjaran NT (2015). Effectiveness of Silica-Lasing Method on the Bond Strength of Composite Resin Repair to Ni-Cr Alloy. Journal of Prosthodontics, 24(3), 225-232.
Chicago	Madani AS, Astaneh PA, Nakhaei M, Bagheri HG, Moosavi H, Alavi S, Najjaran NT. "Effectiveness of Silica-Lasing Method on the Bond Strength of Composite Resin Repair to Ni-Cr Alloy." Journal of Prosthodontics 24, no. 3 (2015): 225-232.
Harvard	Madani AS et al. (2015) 'Effectiveness of Silica-Lasing Method on the Bond Strength of Composite Resin Repair to Ni-Cr Alloy', Journal of Prosthodontics, 24(3), pp. 225-232.
Vancouver	Madani AS, Astaneh PA, Nakhaei M, Bagheri HG, Moosavi H, Alavi S, et al.. Effectiveness of Silica-Lasing Method on the Bond Strength of Composite Resin Repair to Ni-Cr Alloy. Journal of Prosthodontics. 2015;24(3):225-232.
BibTex	@article{ author = {Madani AS and Astaneh PA and Nakhaei M and Bagheri HG and Moosavi H and Alavi S and Najjaran NT}, title = {Effectiveness of Silica-Lasing Method on the Bond Strength of Composite Resin Repair to Ni-Cr Alloy}, journal = {Journal of Prosthodontics}, volume = {24}, number = {3}, pages = {225-232}, year = {2015} }
RIS	TY - JOUR AU - Madani AS AU - Astaneh PA AU - Nakhaei M AU - Bagheri HG AU - Moosavi H AU - Alavi S AU - Najjaran NT TI - Effectiveness of Silica-Lasing Method on the Bond Strength of Composite Resin Repair to Ni-Cr Alloy JO - Journal of Prosthodontics VL - 24 IS - 3 SP - 225 EP - 232 PY - 2015 ER -

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