Marginal Vertical Fit along the Implant-Abutment Interface: A Microscope Qualitative AnalysisReportar como inadecuado


Marginal Vertical Fit along the Implant-Abutment Interface: A Microscope Qualitative Analysis


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Department of Prosthodontics, Dental School, Dental Clinic, University of Ferrara, Ferrara 44121, Italy





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Academic Editors: Bernhard Pommer and Patrick R. Schmidlin

Abstract The aim of this study was to qualitatively evaluate the marginal vertical fit along two different implant-abutment interfaces: 1 a standard abutment on an implant and 2 a computer-aided-design-computer-aided-machine CAD-CAM customized screw-retained crown on an implant. Four groups were compared: three customized screw-retained crowns with three different -tolerance- values CAD-CAM 0, CAD-CAM +1, CAD-CAM −1 and a standard titanium abutment. Qualitative analysis was carried out using an optical microscope. Results showed a vertical gap significantly different from both CAD-CAM 0 and CAD-CAM −1, while no difference was found between standard abutment and CAD-CAM +1. The set tolerance in producing CAD-CAM screw-retained crowns plays a key role in the final fit. View Full-Text

Keywords: abutment; implant; marginal fit; tolerance; optical microscope abutment; implant; marginal fit; tolerance; optical microscope





Autor: Nicola Mobilio, Alberto Fasiol * , Giulio Franceschetti and Santo Catapano

Fuente: http://mdpi.com/



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