COMPARISON OF FLEXURAL STRENGTH OF CONVENTIONAL BRAZING & CAST TO TECHNIQUES IN FIXED PARTIAL DENTURES USING BASE METAL ALLOYS

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REZAEI DASTJERDI M.; GHANBARZADEH JALIL; SABOUNI M.R.; AMIRIAN K.; ESMAEILI HABIB ELAH

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Journal: Journal of Mashhad Dental School Year:2009 | Volume:33 | Issue:3 (70) Page(s): 223-230

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Title

COMPARISON OF FLEXURAL STRENGTH OF CONVENTIONAL BRAZING & CAST TO TECHNIQUES IN FIXED PARTIAL DENTURES USING BASE METAL ALLOYS

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FLEXURAL STRENGTHQ2

BASE METALQ3

SOLDERINGQ3

CAST TOQ3

Abstract

Introduction: Researches about conventional SOLDERING of BASE METAL alloys have shown that they are unpredictable and too technique sensitive. The objective of this study was the introduction of CAST TO technique (casting for second time) and comparison of its FLEXURAL STRENGTH with conventional SOLDERING.Materials & Methods: In this experimental in vitro study, 30 cylindrical metal patterns with 60mm length and 3mm diameter from BASE METAL alloy "super cast" were prepared. Each was divided into two identical 30mm components by Cr-Co disc and subgrouped into two equal groups (N=30). In the first group, samples were placed on a plaster index with an interplaster distance of 0.3mm. Then this distance was filled with duralay acryl, and SOLDERING process was accomplished on these 15 samples. In the second group, after creating an appropriate undercut at the end of each sample, specimens were attached with Duralay, a 10 gauge sprue with 12mm length was attached in the center of all samples and again the samples were burnout and cast with super cast alloy again. 3 point flexure test with zwick instron testing machine was accomplished and data were analyzed with F & T tests.Results: The flexure strength comparison of conventional SOLDERING and CAST TO technique showed that there was no statistical difference between them. According to coefficient of variation, dispersive investigation of flexure strength for both groups was accomplished and showed that in SOLDERING group, it was 1.5 times greater than CAST TO group.Conclusion: This study showed that FLEXURAL STRENGTH of CAST TO technique was comparable with conventional SOLDERING. However, the results of CAST TO technique were more predictable than those of conventional SOLDERING.

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APA: Copy

REZAEI DASTJERDI, M., GHANBARZADEH, JALIL, SABOUNI, M.R., AMIRIAN, K., & ESMAEILI, HABIB ELAH. (2009). COMPARISON OF FLEXURAL STRENGTH OF CONVENTIONAL BRAZING & CAST TO TECHNIQUES IN FIXED PARTIAL DENTURES USING BASE METAL ALLOYS. JOURNAL OF MASHHAD DENTAL SCHOOL, 33(3 (70)), 223-230. SID. https://sid.ir/paper/73983/en

Vancouver: Copy

REZAEI DASTJERDI M., GHANBARZADEH JALIL, SABOUNI M.R., AMIRIAN K., ESMAEILI HABIB ELAH. COMPARISON OF FLEXURAL STRENGTH OF CONVENTIONAL BRAZING & CAST TO TECHNIQUES IN FIXED PARTIAL DENTURES USING BASE METAL ALLOYS. JOURNAL OF MASHHAD DENTAL SCHOOL[Internet]. 2009;33(3 (70)):223-230. Available from: https://sid.ir/paper/73983/en

IEEE: Copy

M. REZAEI DASTJERDI, JALIL GHANBARZADEH, M.R. SABOUNI, K. AMIRIAN, and HABIB ELAH ESMAEILI, “COMPARISON OF FLEXURAL STRENGTH OF CONVENTIONAL BRAZING & CAST TO TECHNIQUES IN FIXED PARTIAL DENTURES USING BASE METAL ALLOYS,” JOURNAL OF MASHHAD DENTAL SCHOOL, vol. 33, no. 3 (70), pp. 223–230, 2009, [Online]. Available: https://sid.ir/paper/73983/en

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