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dc.contributor.authorOzcelik, Tuncer Burak
dc.contributor.authorYilmaz, Burak
dc.contributor.authorSeker, Emre
dc.contributor.authorShah, Karnik
dc.date.accessioned2019-04-18T11:00:27Z
dc.date.available2019-04-18T11:00:27Z
dc.date.issued2018
dc.identifier.issn0882-2786
dc.identifier.urihttp://eds.a.ebscohost.com/eds/pdfviewer/pdfviewer?vid=0&sid=d9696488-9383-4931-9bec-ad5356e25853%40sdc-v-sessmgr04
dc.identifier.urihttp://hdl.handle.net/11727/3065
dc.description.abstractPurpose: The ideal digital cement space value for the fabrication of provisional computer-aided design/ computer-aided manufacturing (CAD/CAM) crowns with clinically acceptable marginal adaptation is not well known. The aim of this study was to evaluate the effect of different simulated cement space settings on the marginal tit of poly(methyl methacrylate) (PMMA) provisional CAD/CAM restorations. Materials and Methods: An extracted premolar tooth was prepared using ceramic crown preparation guidelines and represented both natural teeth and/or custom implant abutments. The prepared tooth abutment was scanned with a three-dimensional (3D) laboratory scanner (D900, 3Shape). CAD design software was used to subsequently design a premolar crown core with three different simulated cement space settings (20 to 40 mu m, 20 to 50 mu m, 20 to 60 mu m). PMMA blocks were used to mill the specimens (n = 9, N = 27). Using a stereo zoom microscope, a total of 36 images for each of the 3 groups (9 crowns per group, 4 sites per crown) were captured to measure the mean vertical marginal discrepancy for every group. One-way analysis of variance (ANOVA) was used to analyze the data, and the post hoc Tukey multiple comparison test was performed. Results: The marginal gap values of the PMMA cores fabricated using the three cement space settings were significantly different from each other (P < .001). The marginal gap was smaller with a 20- to 60-mu m setting compared with 20 to 50 mu m and 20 to 40 mu m, and the 20- to 50-mu m setting allowed for smaller marginal gaps compared with 20 to 40 mu m (P < .001). Conclusion: Within the limitations of this study, the marginal gaps of CAD/CAM-fabricated PMMA cores were smaller when the cement space was larger. The smallest marginal gaps were achieved when a 20- to 60-mu m cement space was used (P < .001).en_US
dc.language.isoengen_US
dc.relation.isversionof10.11607/jomi.6271en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCAD/CAMen_US
dc.subjectCement spaceen_US
dc.subjectİmplant abutmentsen_US
dc.subjectMarginal fiten_US
dc.subjectNatural teethen_US
dc.titleMarginal Adaptation of Provisional CAD/CAM Restorations Fabricated Using Various Simulated Digital Cement Space Settingsen_US
dc.typearticleen_US
dc.relation.journalINTERNATIONAL JOURNAL OF ORAL & MAXILLOFACIAL IMPLANTSen_US
dc.identifier.volume33en_US
dc.identifier.issue5en_US
dc.identifier.startpage1064en_US
dc.identifier.endpage1069en_US
dc.identifier.wos000456081800017en_US
dc.identifier.scopus2-s2.0-85054641446en_US
dc.contributor.pubmedID30231093en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergien_US


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