INFLUENCE OF SILICA-LASING METHOD ON THE BOND STRENGTH OF COMPOSITE RESIN TO NI-CR ALLOY: COMPARISON OF CO2 AND ND:YAG LASERS

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NAKHAEI MOHAMMADREZA; MADANI AZAMSADAT; ANSARI ASTANEH PEDRAM; BAGHERI HOSSEIN; ALAVI SAMIN

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Journal: Journal of Mashhad Dental School Year:2016 | Volume:40 | Issue:1 Page(s): 83-92

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Title

INFLUENCE OF SILICA-LASING METHOD ON THE BOND STRENGTH OF COMPOSITE RESIN TO NI-CR ALLOY: COMPARISON OF CO2 AND ND:YAG LASERS

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Keywords

SILICA-COATINGQ1

SILICA-LASINGQ2

ND:YAG LASERQ1

CO2 LASERQ2

BOND STRENGTHQ2

COMPOSITE RESINQ2

Abstract

Introduction: In this study silica-coated alumina particles (Cojet sand) were irradiated by CO2 LASER and Nd: YAG laser with the intention of stabilization on the metal surface and BOND STRENGTH to COMPOSITE RESIN was evaluated.Materials & Methods: Forty Ni-Cr cylindrical specimens were fabricated. The bonding surface of all specimens was airborne-particle abraded using 50 mm aluminum oxide particles. Specimens were divided into four groups that received the following surface treatments: 1-airborne-particle abrasion alone (A.A); 2- airborne-particle abrasion with Cojet sand; 3-metal surface coated with Cojet sand and irradiated by Nd: YAG laser (CJ-Lased-Nd: YAG); 4- metal surface coated with Cojet sand and irradiated by CO2 LASER (CJ-Lased-CO2). COMPOSITE RESIN was applied on metal surfaces. Specimens were thermocycled and tested in shear mode in a universal testing machine. The mode of failure was determined, and two specimens in each group were examined by scanning electron microscopy and wavelength dispersive X-ray spectroscopy. The shear BOND STRENGTH values were analyzed using ANOVA and Tukey’s tests (α=0.05).Results: Si-CO showed significantly higher shear BOND STRENGTH in comparison to other groups (P<0.001). There was no significant difference among groups A.A, CJ-Lased-Nd: YAG and CJ-Lased-CO2 (P>0.05). In Si-CO group, the failure mode was mostly cohesive; but other groups showed adhesive failure in the metal-composite interface.Conclusion: SILICA-LASING with Cojet sand and irradiation of Nd: YAG or CO2 LASER is not an effective method in improving metal-composite BOND STRENGTH.

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EFFECTIVENESS OF SILICA-LASING METHOD ON THE BOND STRENGTH OF COMPOSITE RESIN REPAIR TO NI-CR ALLOY

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APA: Copy

NAKHAEI, MOHAMMADREZA, MADANI, AZAMSADAT, ANSARI ASTANEH, PEDRAM, BAGHERI, HOSSEIN, & ALAVI, SAMIN. (2016). INFLUENCE OF SILICA-LASING METHOD ON THE BOND STRENGTH OF COMPOSITE RESIN TO NI-CR ALLOY: COMPARISON OF CO₂ AND ND:YAG LASERS. JOURNAL OF MASHHAD DENTAL SCHOOL, 40(1), 83-92. SID. https://sid.ir/paper/74448/en

Vancouver: Copy

NAKHAEI MOHAMMADREZA, MADANI AZAMSADAT, ANSARI ASTANEH PEDRAM, BAGHERI HOSSEIN, ALAVI SAMIN. INFLUENCE OF SILICA-LASING METHOD ON THE BOND STRENGTH OF COMPOSITE RESIN TO NI-CR ALLOY: COMPARISON OF CO₂ AND ND:YAG LASERS. JOURNAL OF MASHHAD DENTAL SCHOOL[Internet]. 2016;40(1):83-92. Available from: https://sid.ir/paper/74448/en

IEEE: Copy

MOHAMMADREZA NAKHAEI, AZAMSADAT MADANI, PEDRAM ANSARI ASTANEH, HOSSEIN BAGHERI, and SAMIN ALAVI, “INFLUENCE OF SILICA-LASING METHOD ON THE BOND STRENGTH OF COMPOSITE RESIN TO NI-CR ALLOY: COMPARISON OF CO₂ AND ND:YAG LASERS,” JOURNAL OF MASHHAD DENTAL SCHOOL, vol. 40, no. 1, pp. 83–92, 2016, [Online]. Available: https://sid.ir/paper/74448/en

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