COMPARISON OF MARGINAL FITTNESS IN SHOULDER PORCELAIN AND SHOULDER WITH 45° BEVEL

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GOUHARIAN R.; AHMADZADEH A.; SAYFI M.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Journal of Mashhad Dental School Year:2002 | Volume:26 | Issue:1-2 Page(s): 89-98

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Title

COMPARISON OF MARGINAL FITTNESS IN SHOULDER PORCELAIN AND SHOULDER WITH 45° BEVEL

Author(s)

GOUHARIAN R. | AHMADZADEH A. | SAYFI M. | Issue Writer Certificate

Keywords

ABSOLUTE MARGINAL DISCREPANCYQ4

SHOULDER PORCELAINQ4

MARGINAL FITTNESSQ4

Abstract

Introduction: This study was performed to compare the marginal fitness of sholder porcelaiin and shoulder with 45˚ bevel using a base metal alloy. Materials and Methods: 30 alluminum dies were made with CNC machine, 15 with 90˚ shoulder sesigh and 15 with 90˚ shoulder with 45° bevel design.After fabricating metal coping for each die, porcelain application procedure was done containing degassing, opaque powder application and baking, body powder application and baking, and glazing. For SHOULDER PORCELAIN group, shoulder powder was applied in two steps before body powder application. The crowns were cemented on their dies, and then the specimens were embedded in Polyester and cut. Then the marginal gap was measured using a reflecting microscope. Mean ABSOLUTE MARGINAL DISCREPANCY (distance between external angle of preparation and the crow margin) for shoulder with bevel group was 7.87 µm and for the SHOULDER PORCELAIN group was 55.2µm.Results: The results were analysed using T-test. The statistical analysis showed that:1- The MARGINAL FITTNESS of both groups was clinically acceptable and 2- The MARGINAL FITTNESS of shoulder with bevel design was better than SHOULDER PORCELAIN margin.

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APA: Copy

GOUHARIAN, R., AHMADZADEH, A., & SAYFI, M.. (2002). COMPARISON OF MARGINAL FITTNESS IN SHOULDER PORCELAIN AND SHOULDER WITH 45° BEVEL. JOURNAL OF MASHHAD DENTAL SCHOOL, 26(1-2), 89-98. SID. https://sid.ir/paper/74402/en

Vancouver: Copy

GOUHARIAN R., AHMADZADEH A., SAYFI M.. COMPARISON OF MARGINAL FITTNESS IN SHOULDER PORCELAIN AND SHOULDER WITH 45° BEVEL. JOURNAL OF MASHHAD DENTAL SCHOOL[Internet]. 2002;26(1-2):89-98. Available from: https://sid.ir/paper/74402/en

IEEE: Copy

R. GOUHARIAN, A. AHMADZADEH, and M. SAYFI, “COMPARISON OF MARGINAL FITTNESS IN SHOULDER PORCELAIN AND SHOULDER WITH 45° BEVEL,” JOURNAL OF MASHHAD DENTAL SCHOOL, vol. 26, no. 1-2, pp. 89–98, 2002, [Online]. Available: https://sid.ir/paper/74402/en

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