Comparative clinical study of the marginal discrepancy of fixed dental prosthesis fabricated by the milling-sintering method using a presintered alloy
The Journal of Advanced Prosthodontics
;
: 280-285, 2019.
Article
in English
| WPRIM
| ID: wpr-761419
ABSTRACT
PURPOSE:
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. MATERIALS ANDMETHODS:
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).RESULTS:
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 (P=.782). There was no tendency between the amount of marginal discrepancy and the measurement point.CONCLUSION:
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Prostheses and Implants
/
Dental Prosthesis
/
Crowns
/
Alloys
/
Clinical Study
/
Methods
Type of study:
Practice guideline
Limits:
Humans
Language:
English
Journal:
The Journal of Advanced Prosthodontics
Year:
2019
Type:
Article
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