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

Hyun-Wook Woo; Sung-Am Cho; Cheong-Hee Lee; Kyu-Bok Lee; Jin-Hyun Cho; Du-Hyeong Lee

doi:10.4047/jap.2018.10.2.128

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

Journal article

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

Hyun-Wook Woo, Sung-Am Cho, Cheong-Hee Lee, Kyu-Bok Lee, Jin-Hyun Cho and Du-Hyeong Lee

The journal of advanced prosthodontics, Vol.10(2), pp.128-131

04/01/2018

DOI: 10.4047/jap.2018.10.2.128

PMCID: PMC5917104

PMID: 29713433

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Abstract

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<.001). However, the FHA group did not differ significantly from the PSA group. CONCLUSION. Soft alloy milling is comparable to hard alloy milling, and it is more precise than casting in terms of the marginal fit of implant-supported, full-arch prostheses.

Dentistry, Oral Surgery & Medicine

Life Sciences & Biomedicine

Science & Technology

Details

Title: Subtitle: Precision of the milled full-arch framework fabricated using pre-sintered soft alloy: A pilot study
Creators: Hyun-Wook Woo - Kyungpook National University
Sung-Am Cho - Kyungpook National University
Cheong-Hee Lee - Kyungpook National University
Kyu-Bok Lee - Kyungpook Natl Univ, Sch Dent, Dept Prosthodont, A3DI, Daegu, South Korea
Jin-Hyun Cho - Kyungpook National University
Du-Hyeong Lee - Kyungpook Natl Univ, Sch Dent, Dept Prosthodont, 2177 Dalgubeoldae Ro, Daegu 41940, South Korea
Resource Type: Journal article
Publication Details: The journal of advanced prosthodontics, Vol.10(2), pp.128-131
DOI: 10.4047/jap.2018.10.2.128
PMID: 29713433
PMCID: PMC5917104
NLM abbreviation: J Adv Prosthodont
ISSN: 2005-7806
eISSN: 2005-7814
Publisher: Korean Acad Prosthodontics
Number of pages: 4
Grant note: NRF-2014R1A1A1006073 / Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, Information and Communication Technologies (ICT) & Future Planning
Language: English
Date published: 04/01/2018
Academic Unit: Prosthodontics
Record Identifier: 9984914015302771

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