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http://dx.doi.org/10.17135/jdhs.2015.15.1.54

Marginal Adaptation of Zirconium Dioxide Core according to the Abutment Teeth  

Kim, Ki-Baek (Institute for Health Science, College of Health Science, Korea University)
Kim, Seok-Hwan (Department of Medical Management, Gimcheon University)
Kim, Jae-Hong (Institute for Health Science, College of Health Science, Korea University)
Publication Information
Journal of dental hygiene science / v.15, no.1, 2015 , pp. 54-59 More about this Journal
Abstract
The present study investigated the influences of various abutment teeth shapes (maxillary right canine, pre-molar, molar) on the marginal adaptation of computer aided design/computer aided manufacturing-fabricated zirconia core. In vitro adaptation of zirconia cores manufactured by three different abutments were evaluated. Thirty zirconia cores were made per each models and the adaptation was evaluated through a silicone replica technique. The measurement of the adaptation was carried out using digital microscope. The mean and standard deviation of each reference point were analyzed using the one-way (ANOVA) and Tukey's honestly significant difference tests (${\alpha}=0.05$). The overall marginal fits of the zirconia cores were as follows: canine: $47.59{\mu}m$, pre-molar: $43.74{\mu}m$, molar: $40.36{\mu}m$. They were no statistically significant differences between groups for adaptation (p>0.05). This confirmed that the type of abutment teeth used does not determine the precision of fit of zirconia core.
Keywords
Abutment teeth; Computer aided design/computer aided manufacturing; Dental marginal adaptation; Zirconium dioxide core;
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Times Cited By KSCI : 3  (Citation Analysis)
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