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An in vitro evaluation of fit of the crowns fabricated by zirconium oxide-based ceramic CADCAM systems, before and after porcelain firing cycles and after glaze cycles
Joint Authors
Ibrahim, Adil F.
Humaydat, Sattar J. A.
Source
Journal of Baghdad College of Dentistry
Issue
Vol. 25, Issue 1 (31 Mar. 2013), pp.43-48, 6 p.
Publisher
University of Baghdad College of Dentistry
Publication Date
2013-03-31
Country of Publication
Iraq
No. of Pages
6
Main Subjects
Topics
Abstract EN
Background : The objective of this in vitro study was to evaluate the vertical marginal fit of crowns fabricated with ZrO2 CAD / CAM, before and after porcelain firing cycles and after glaze cycles. Materials and Methods : An acrylic resin model of a left maxillary first molar was prepared and duplicated to have Nickel-Chromium master die.
Ten die stone dies were sent to the CAD / CAM (Amann Girrbach) for crowns fabrication.
Marginal gaps along vertical planes were measured at four indentations at the (mid mesial, mid distal, mid buccal, mid palatal) before (Time 0) and after porcelain firing cycles (Time 1) and after glaze cycles (Time 2) using a light microscope at a magnification of ×100.
One way ANOVA LSD tests were performed to determine whether the mean and standard deviation of sub group Time 2. Results : The mean values of the ZrO2 CAD / CAM Time 0 were (6.77μm), Time 1(8.75μm) and Time 2 (10.62 μm).
One way ANOVA test revealed highly statistical significance (P <0.01).
LSD test results showed that there is highly significant difference between time (0) and time (2), while there is no any significant difference between time (0) and time (1), and between time (1) and time (2). Conclusions : Within the limitations of this study, it was concluded that the ZrO2 CAD / CAM demonstrated acceptable marginal fit; The porcelain firing and the glaze firing cycles affected the marginal gap.
American Psychological Association (APA)
Humaydat, Sattar J. A.& Ibrahim, Adil F.. 2013. An in vitro evaluation of fit of the crowns fabricated by zirconium oxide-based ceramic CADCAM systems, before and after porcelain firing cycles and after glaze cycles. Journal of Baghdad College of Dentistry،Vol. 25, no. 1, pp.43-48.
https://search.emarefa.net/detail/BIM-324050
Modern Language Association (MLA)
Humaydat, Sattar J. A.& Ibrahim, Adil F.. An in vitro evaluation of fit of the crowns fabricated by zirconium oxide-based ceramic CADCAM systems, before and after porcelain firing cycles and after glaze cycles. Journal of Baghdad College of Dentistry Vol. 25, no. 1 (Mar. 2013), pp.43-48.
https://search.emarefa.net/detail/BIM-324050
American Medical Association (AMA)
Humaydat, Sattar J. A.& Ibrahim, Adil F.. An in vitro evaluation of fit of the crowns fabricated by zirconium oxide-based ceramic CADCAM systems, before and after porcelain firing cycles and after glaze cycles. Journal of Baghdad College of Dentistry. 2013. Vol. 25, no. 1, pp.43-48.
https://search.emarefa.net/detail/BIM-324050
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 47-48
Record ID
BIM-324050