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- Title
Surface Roughness of Two Scannable Die Materials.
- Authors
Albuha Al-Mussawi, Raja'a M.; Farid, Farzaneh; Aljibori, Ola M.; Dheyaa, Athraa M.; Shamshiri, Ahmad Reza
- Abstract
Surface roughness influences the marginal and internal adaptation of the prosthesis. It also can affect the accuracy of scanned data in CAD/CAM techniques. Purpose - present study compared surface roughness of a stone and a polyurethane die material. Methodology -- An identical aluminum model in form of prepared premolar was made using CNC milling machine. Poly vinylsiloxane impressions were made from the model. Half of the impressions were poured with type IV stone and the other half with the exacto-form resin die material. Surface roughness of each die was measured by profilometer. The data were analyzed with ANOVA and Tukey's test at 95% level of confidence (p=0.05). Results --the mean value of surface roughness for stone die material was 1.79529, and for exacto- form was .89414μm. The difference was significant. Conclusion -- the surface of Exacto-form poly urethane dies is less rough in comparison with stone dies.
- Publication
Indian Journal of Public Health Research & Development, 2019, Vol 10, Issue 4, p1577
- ISSN
0976-0245
- Publication type
Article
- DOI
10.5958/0976-5506.2019.00940.9