Precision of the milled full-arch framework fabricated using pre-sintered soft alloy: A pilot study

PURPOSE. This study aimed to evaluate the marginal discrepancy of full-arch frameworks in implant-supported prostheses fabricated using pre-sintered soft alloy (PSA). MATERIALS AND METHODS. Full-arch metal frameworks were fabricated on the edentulous implant model using casting alloy (CA), fully-sin...

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Bibliographic Details
Published in:The journal of advanced prosthodontics 2018, Vol.10 (2), p.128-131
Main Authors: Woo, Hyun-Wook, Cho, Sung-Am, Lee, Cheong-Hee, Lee, Kyu-Bok, Cho, Jin-Hyun, Lee, Du-Hyeong
Format: Article
Language:Korean
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Summary:PURPOSE. This study aimed to evaluate the marginal discrepancy of full-arch frameworks in implant-supported prostheses fabricated using pre-sintered soft alloy (PSA). MATERIALS AND METHODS. Full-arch metal frameworks were fabricated on the edentulous implant model using casting alloy (CA), fully-sintered hard alloy (FHA), and PSA (n = 4 in each group). To evaluate the misfit of the framework to the abutments, the absolute marginal discrepancy (AMD) values of the frameworks were measured in cross-sectional images that had been drawn as part of the triple-scan protocol. The AMD values were compared among the tested alloy groups using the Kruskal-Wallis test, with a post hoc Mann-Whitney U test (${\alpha}=.05$). RESULTS. The FHA and PSA groups showed lower marginal discrepancies than the CA group (P
ISSN:2005-7806
2005-7814