نمایش مختصر رکورد

dc.contributor.authorAbrisham, Seyyed Mohammaden_US
dc.contributor.authorFallah Tafti, Abbasen_US
dc.contributor.authorKheirkhah, Samiraen_US
dc.contributor.authorTavakkoli, Mohammad Aminen_US
dc.date.accessioned1399-07-08T17:34:34Zfa_IR
dc.date.accessioned2020-09-29T17:34:34Z
dc.date.available1399-07-08T17:34:34Zfa_IR
dc.date.available2020-09-29T17:34:34Z
dc.date.issued2017-03-01en_US
dc.date.issued1395-12-11fa_IR
dc.date.submitted2017-02-08en_US
dc.date.submitted1395-11-20fa_IR
dc.identifier.citationAbrisham, Seyyed Mohammad, Fallah Tafti, Abbas, Kheirkhah, Samira, Tavakkoli, Mohammad Amin. (2017). Shear Bond Strength of Porcelain to a Base-Metal Compared to Zirconia Core. Journal of Dental Biomaterials, 4(1), 367-372.en_US
dc.identifier.urihttp://jdb1.sums.ac.ir/article_42581.html
dc.identifier.urihttps://iranjournals.nlai.ir/handle/123456789/24302
dc.description.abstractStatement of Problem: Recent clinical results for Zirconia all-ceramic restorations have revealed that the fracture rate 6-15% of the Zirconia framework is so low and the core of Zirconia has high stability. However, chipping-off fractures of porcelain are the most common reason for failures of Zirconia in the fixed partial dentures.Objectives: The purpose of this study was to compare the shear bond strength (SBS) of porcelain in the porcelain fused to metal and all-ceramic crowns with Zirconia core.Materials and Methods: Two groups were selected: porcelain fused to metal (PFM) and porcelain fused to Zirconia (PFZ) (n = 30).In the PFM group, a wax model (10 × 10 × 10mm)was used to cast metal base (Ni_Cr alloy). In the PFZ group, an acrylic cubic model (10 × 10 × 10mm) was made as Zirconia model for scanning.15 cubic Zirconia samples were milled by CAD-CAM. The procedure of porcelain veneering was conducted by the conventional layering technique up to 2 mm thickness (2.5 × 2.5 × 2 mm). All specimens were stored in water for 48 hrs. Thermal cycling was conducted for 20000 cycles between 55°C and 5ºC alternatively for 30s.All samples were mounted in acrylic resin and the SBS test was performed, using a universal testing machine. The analysis of data was performed at a significance level of 0.05 using Kolmogorov-Smirnov and Mann-Whitney U-test.Results: Mean of SBS in PFM and PFZ was 24.57 and 20.88, respectively. The results of Mann-Whitney test showed that there was no statistically significant difference between the two groups of porcelain fused to metal and Zirconia in item shear bond strength (p = 0.455).Conclusions: There was no significant difference between the two groups of PFM and PFZ in the item SBS.Key words:Fixed Partial Denture, Dental Porcelain, Metal Ceramic Alloys, Zirconia, Computer-Aided Design, Shear Strengthen_US
dc.format.extent326
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoen_US
dc.relation.ispartofJournal of Dental Biomaterialsen_US
dc.titleShear Bond Strength of Porcelain to a Base-Metal Compared to Zirconia Coreen_US
dc.typeTexten_US
dc.typeOriginal Article(s)en_US
dc.contributor.departmentDepartment of Prosthodontics, Yazd University of Medical Sciences, Yazd, Iranen_US
dc.contributor.departmentDepartment of Prosthodontics, Yazd University of Medical Sciences, Yazd, Iranen_US
dc.contributor.departmentSchool of Dentistry, Shahid Sadoughi University of Medical Sciences, Yazd, Iranen_US
dc.contributor.departmentDepartment of Orthodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.en_US
dc.citation.volume4
dc.citation.issue1
dc.citation.spage367
dc.citation.epage372


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