Rahim, Aini Hayati Abdul and Zanul Abidin, Zubaidah and Yunus, Norsiah (2021) The digitalisation in cobalt-chromium framework fabrication. surface roughness analysis: A pilot study. Sains Malaysiana, 50 (10). pp. 3059-3065. ISSN 0126-6039, DOI https://doi.org/10.17576/jsm-2021-5010-18.
Full text not available from this repository.Abstract
Selective laser melting (SLM) is a new technique in fabricating cobalt-chromium denture framework. However, the surface properties of cobalt-chromium denture framework fabricated using the aforementioned technique have not been widely investigated. The aim of this paper was to investigate the surface roughness of cobalt-chromium alloy in removable partial denture fabricated with SLM technique. Cobalt-chromium denture frameworks were fabricated with two techniques (n = 10); the conventional lost-wax casting (conventional group) and SLM techniques (SLM group). Specimens from the conventional group were subjected to the standard cobalt-chromium denture polishing protocols. No treatment was employed for specimens from the SLM group. All specimens were subjected to surface roughness measurement on polished and fitting surfaces using non-contact optical three-dimensional metrology and surface roughness analysis machine (Infinite Focus Real 3D Alicona). Statistical analysis showed no significant difference in surface roughness between the specimens from conventional and SLM groups (p > 0.05). There was no statistically significant difference in surface roughness between the polished and fitting surfaces of SLM specimens (p > 0.05). Surface roughness quality of the cobalt-chromium denture framework fabricated with the SLM technique is comparable to that fabricated with the conventional lost-wax casting technique. The surface roughness of SLM fabricated cobalt-chromium denture frameworks carries the same surface roughness quality between the polished and fitting surfaces.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Cobalt chromium; Denture; Selective laser melting; Surface roughness |
| Subjects: | R Medicine > RK Dentistry |
| Divisions: | Faculty of Dentistry |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 08 Apr 2022 05:15 |
| Last Modified: | 08 Apr 2022 05:15 |
| URI: | http://eprints.um.edu.my/id/eprint/27202 |
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