In vitro evaluation of the bond strength between various ceramics and cobalt-chromium alloy fabricated by selective laser sintering
- Authors
- Bae, Eun-Jeong; Kim, Hae-Young; Kim, Woong-Chui; Kim, Ji-Hwan
- Issue Date
- 8월-2015
- Publisher
- KOREAN ACAD PROSTHODONTICS
- Keywords
- Rapid prototyping; Selective Laser Sintering; Dental technique; Bond strength; Coefficient of thermal expansion
- Citation
- JOURNAL OF ADVANCED PROSTHODONTICS, v.7, no.4, pp.312 - 316
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF ADVANCED PROSTHODONTICS
- Volume
- 7
- Number
- 4
- Start Page
- 312
- End Page
- 316
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/92864
- DOI
- 10.4047/jap.2015.7.4.312
- ISSN
- 2005-7806
- Abstract
- PURPOSE. This study aimed to present the clinical applicability of restorations fabricated by a new method, by comparing the bond strength of between ceramic powder with different coefficient of thermal expansion and alloys fabricated by Selective laser sintering (SLS). MATERIALS AND METHODS. Fifty Co-Cr alloy specimens (25.0 x 3.0 x 0.5 mm) were prepared by SLS and fired with the ceramic (8.0 x 3.0 x 0.5 mm) (ISO 9693:1999). For comparison, ceramics with different coefficient of thermal expansion were used. The bond strength was measured by three-point bending testing and surfaces were observed with FE-SEM. Results were analyzed with a one-way ANOVA (alpha=.05). RESULTS. The mean values of Duceram Kiss (61.18 +/- 6.86 MPa), Vita VM13 (60.30 +/- 7.14 MPa), Ceramco 3 (58.87 +/- 5.33 MPa), Noritake EX-3 (55.86 +/- 7.53 MPa), and Vintage MP (55.15 +/- 7.53 MPa) were found. No significant difference was observed between the bond strengths of the various metal-ceramics. The surfaces of the specimens possessed minute gaps between the additive manufactured layers. CONCLUSION. All the five powders have bond strengths higher than the required 25 MPa minimum (ISO 9693); therefore, various powders can be applied to metal structures fabricated by SLS.
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Collections - College of Health Sciences > Division of Health Policy and Management > 1. Journal Articles
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