Fracture of Zirconia Abutment with Metallic Insertion on Anterior Single Titanium Implant with Internal Hexagon: Retrieval Analysis of a Failure.

Autor:	Bottino MA; São Paulo State University, Institute of Science and Technology, Department of Prosthodontics and Dental Materials, São José dos Campos, Brazil., Rocha RFV; São Paulo State University, Institute of Science and Technology, Department of Prosthodontics and Dental Materials, São José dos Campos, Brazil., Anami LC; São Paulo State University, Institute of Science and Technology, Department of Prosthodontics and Dental Materials, São José dos Campos, Brazil., Özcan M; University of Zurich, Head of Dental Materials Unit, Center for Dental and Oral Medicine, Clinic for Fixed and Removable Prosthodontics and Dental Materials Science, Zurich, Switzerland., Marques de Melo R; São Paulo State University, Institute of Science and Technology, Department of Prosthodontics and Dental Materials, São José dos Campos, Brazil.
Jazyk:	angličtina
Zdroj:	The European journal of prosthodontics and restorative dentistry [Eur J Prosthodont Restor Dent] 2016 Sep; Vol. 24 (3), pp. 164-168.
DOI:	10.1922/EJPRD_01556Bottino05
Abstrakt:	This case report presents a retrieval analysis of a screw-retained one-piece restoration with the veneering ceramic fired directly onto the zirconia abutment that fractured during insertion. A patient who experienced root fracture of a maxillary left central incisor received a titanium implant on the same day as extraction. After delayed implant loading, a two-piece zirconia abutment with metallic insertion was customized. Upon installation, a horizontal fracture of the crown just above the metallic portion was detected. The retrieval analysis of a fractured zirconia abutment showed crack formation and diffusion of glaze material that expanded the crack line during firing. (Copyright© 2016 Dennis Barber Ltd.)
Databáze:	MEDLINE
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