Comparative clinical study of the marginal discrepancy of fixed dental prosthesis fabricated by the milling-sintering method using a presintered alloy.
Alloy
Clinical
Dental
Fixed dental prosthesis
Marginal discrepancy
Presintered
Journal
The journal of advanced prosthodontics
ISSN: 2005-7806
Titre abrégé: J Adv Prosthodont
Pays: Korea (South)
ID NLM: 101521064
Informations de publication
Date de publication:
Oct 2019
Oct 2019
Historique:
received:
19
07
2019
revised:
18
10
2019
accepted:
29
10
2019
entrez:
23
11
2019
pubmed:
23
11
2019
medline:
23
11
2019
Statut:
ppublish
Résumé
The present study was designed to examine the clinical fit of fixed dental prosthesis fabricated by the milling-sintering method using a presintered cobalt-chromium alloy. Two single metal-ceramic crowns were fabricated via milling-sintering method and casting method in each of the twelve consecutive patients who required an implant-supported fixed prosthesis. In the milling-sintering method, the prosthetic coping was designed in computer software, and the design was converted to a non-precious alloy coping using milling and post-sintering process. In the casting method, the conventional manual fabrication process was applied. The absolute marginal discrepancy of the prostheses was evaluated intraorally using the triple-scan technique. Statistical analysis was conducted using Mann-Whitney U test (α=.05). Eight patients (66.7%) showed a lower marginal discrepancy of the prostheses made using the milling-sintering method than that of the prosthesis made by the casting method. Statistically, the misfit of the prosthesis fabricated using the milling-sintering method was not significantly different from that fabricated using the casting method ( The overall marginal fit of prosthesis fabricated by milling-sintering using a presintered alloy was comparable to that of the prosthesis fabricated by the conventional casting method in clinical use.
Identifiants
pubmed: 31754418
doi: 10.4047/jap.2019.11.5.280
pmc: PMC6856311
doi:
Types de publication
Journal Article
Langues
eng
Pagination
280-285Informations de copyright
© 2019 The Korean Academy of Prosthodontics.
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