Fracture of Zirconia Abutment with Metallic Insertion on Anterior Single Titanium Implant with Internal Hexagon: Retrieval Analysis of a Failure
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Coorientador
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Dennis Barber Ltd
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Acesso restrito
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Resumo
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.
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Palavras-chave
Dental Implants, Zirconia, Prosthesis Failure Analyses, Periprosthetic Fractures, Dental Implant-Abutment Design, Dental Porcelain
Idioma
Inglês
Citação
European Journal Of Prosthodontics And Restorative Dentistry. Lowestoft: Dennis Barber Ltd, v. 24, n. 3, p. 164-168, 2016.
