A conservative approach to retrieve a fractured abutment screw – Case report. Issue 2 (April 2016)

• Record Type: Journal Article
• Authors: Carneiro, Thiago de Almeida Prado Naves; Prudente, Marcel Santana; e Pessoa, Roberto Sales; Mendonça, Gustavo; das Neves, Flávio Domingues
• Is Part Of: Journal of prosthodontic research. Volume 60:Issue 2(2016)
• Page Start: 138
• Page End: 142
• Publication Date: 2016-04
• Subjects: Osseointegrated implant -- Screw fracture -- Implant re-tapping; Prosthodontics -- Periodicals; Dentistry -- Periodicals; Prosthodontics -- Periodicals; Electronic journals; Computer network resources; 617.6905
• DOI: 10.1016/j.jpor.2015.09.003
• Languages: English
• ISSNs: 1883-1958

Abstract

Abstract: Introduction: Regarding implant-supported prostheses, the most reported types of complications are related to loosening or fracturing of abutment or prosthesis screws. This case report shows a series of procedures that allowed a conservative solution for a fractured screw. It avoided removing the implant and also allowed the same prosthesis to be used after guided-drilling the fractured screw and re-tapping the implant internal threads. The same prosthesis was replaced immediately after the procedure. Patient: A 67-year-old male patient, who had a fractured abutment screw of the lower left first molar implant. The patient decided for the conservative treatment option and an attempt was made to remove the fractured screw. Discussion: Parafunctional habits can generate excessive occlusal forces, which are risk factors associated with loosening and fracturing implant screws and even the fixtures themselves. This case report focus on the probable causes, difficulties and risks associated with this procedure and it also discusses the alternative approaches. Conclusion: The purposed treatment allowed a time and money saving resolution for fractured abutment screws.