THE EFFECT OF OXIDE LAYER THICKNESS ON BOND STRENGTH OF PORCELAIN TO NI-CR ALLOY

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REZAEI ROKNI SH.; BARADARAN HADI

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Journal Paper

Paper Information

Journal: Journal of Mashhad Dental School Year:2007 | Volume:31 | Issue:SPECIAL ISSUE Page(s): 17-21

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Title

THE EFFECT OF OXIDE LAYER THICKNESS ON BOND STRENGTH OF PORCELAIN TO NI-CR ALLOY

Author(s)

REZAEI ROKNI SH. | BARADARAN HADI | Issue Writer Certificate

Keywords

OXIDE LAYER

BOND STRENGTH

PORCELAIN

NI-CR ALLOY

Abstract

Introduction: This study evaluated the effect of four oxidation techniques and PORCELAIN firing on the thickness of OXIDE LAYER on base-metal alloy (Ni-Cr) and the relationship of OXIDE LAYER to PORCELAIN-metal BOND STRENGTH.Materials & Methods: This study had an interventional parallel design. Forty plates of base-metal alloy (Ni-Cr) were prepared and divided into four groups to be treated with four different oxidation techniques (A- no oxidation; Boxidation in air; C- oxidation under vacuum; and D- oxidation under vacuum followed by sandblasting). Vita opaque and body PORCELAIN were applied on one side of the plates and baked in a furnace (Vacumat 200) following the recommended directions. The thickness of the OXIDE LAYER was measured by an electron microscope before and after PORCELAIN application. The three-point bend test was used to measure the BOND STRENGTH between PORCELAIN and metal. The force which caused breakage was recorded by computer. Data were analyzed with a one-way analysis of variance (ANOVA) and the Duncan’s test with a 95% significance level. Results: The mean thickness of OXIDE LAYER was statistically different between groups before and after PORCELAIN application (p=0.001<0.05). The Duncan multiple range test demonstrated significant differences in PORCELAIN- metal BOND STRENGTH between different groups of oxidation. Group D showed the best BOND STRENGTH and was statistically different from the other groups.Conclusion: Oxidation under vacuum followed by sandblasting seems to control the OXIDE LAYER and improve the BOND STRENGTH of PORCELAIN to NI-CR ALLOY.

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APA: Copy

REZAEI ROKNI, SH., & BARADARAN, HADI. (2007). THE EFFECT OF OXIDE LAYER THICKNESS ON BOND STRENGTH OF PORCELAIN TO NI-CR ALLOY. JOURNAL OF MASHHAD DENTAL SCHOOL, 31(SPECIAL ISSUE), 17-21. SID. https://sid.ir/paper/551187/en

Vancouver: Copy

REZAEI ROKNI SH., BARADARAN HADI. THE EFFECT OF OXIDE LAYER THICKNESS ON BOND STRENGTH OF PORCELAIN TO NI-CR ALLOY. JOURNAL OF MASHHAD DENTAL SCHOOL[Internet]. 2007;31(SPECIAL ISSUE):17-21. Available from: https://sid.ir/paper/551187/en

IEEE: Copy

SH. REZAEI ROKNI, and HADI BARADARAN, “THE EFFECT OF OXIDE LAYER THICKNESS ON BOND STRENGTH OF PORCELAIN TO NI-CR ALLOY,” JOURNAL OF MASHHAD DENTAL SCHOOL, vol. 31, no. SPECIAL ISSUE, pp. 17–21, 2007, [Online]. Available: https://sid.ir/paper/551187/en

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