A conservative approach to retrieve a fractured abutment screw - Case report
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- 作者：Thiago de Almeida Prado Naves Carneiro ; DDS ; MSc<sup>asup><sup> ; sup><sup>tapncarneiro@hotmail.com" class="auth_mail" title="E-mail the corresponding authorsup> ; Marcel Santana Prudente ; DDS ; MSc<sup>asup> ; Roberto Sales e Pessoa ; DDS ; MSc ; PhD<sup>bsup> ; Gustavo Mendonç ; a ; DDS ; MSc ; PhD<sup>csup> ; Flá ; vio Domingues das Neves ; DDS ; MSc ; PhD<sup>asup>
- 关键词：Osseointegrated implant ; Screw fracture ; Implant re-tapping
- 刊名：Journal of Prosthodontic Research
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：60
- 期：2
- 页码：138-142
- 全文大小：1184 K
文摘
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.
sSec_2">Patient
spar0010">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.
sSec_3">Discussion
spar0015">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.
sSec_4">Conclusion
spar0020">The purposed treatment allowed a time and money saving resolution for fractured abutment screws.