Influence of various gypsum materials on precision of fit of CAD/CAM-fabricated zirconia copings
- Authors
- Kim, Jae-Hong; Kim, Ki-Baek; Kim, Woong-Chul; Rhee, Hyun-Sill; Lee, Il-Hyun; Kim, Ji-Hwan
- Issue Date
- 2월-2015
- Publisher
- JAPANESE SOC DENTAL MATERIALS DEVICES
- Keywords
- Dental CAD/CAM; Fit; Type IV gypsum; Zirconia coping
- Citation
- DENTAL MATERIALS JOURNAL, v.34, no.1, pp.19 - 24
- Indexed
- SCIE
SCOPUS
- Journal Title
- DENTAL MATERIALS JOURNAL
- Volume
- 34
- Number
- 1
- Start Page
- 19
- End Page
- 24
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/94524
- DOI
- 10.4012/dmj.2014-141
- ISSN
- 0287-4547
- Abstract
- The clinical applicability of CAD/CAM-fabricated zirconia copings is tested using working models made from four different high-strength Type IV gypsum materials. Each of the four materials was used to fabricate 15 zirconia copings. Precision of fit was measured with a digital electron microscope using the silicone replica technique. The mean and standard deviation of each reference point were analyzed using the one-way analysis of the variance (ANOVA) and Tukey's honest significant difference (HSD) tests (alpha=0.05). The overall marginal and internal fits of the zirconia copings were as follows: GS (GS: Grey Stone) group: 91.43 mu m, LS (LS: Light green Stone) Group: 87.89 mu m, RS (RS: Red Stone) Group: 88.75 mu m, BS (BS: Beige Stone) Group: 82.78 mu m. There were no significant differences between the mean adaptations of the gypsum varieties (p>0.05). This confirmed that the type of gypsum material used does not determine the precision of fit of a prosthesis.
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Collections - College of Health Sciences > Division of Health Policy and Management > 1. Journal Articles
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