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Repeated failure of implants at the same site: a retrospective clinical study
Dong-Woo Kang1, So-Hyun Kim2, Yong-Hoon Choi3
11Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, 300, Gumi-dong, Bundang-gu, Seongnam-si, Gyeonggi-do 463-707 Korea.
Maxillofacial Plastic and Reconstructive Surgery
|July 30, 2019
Summary
Dental implants can fail repeatedly, often due to overloading or infection. Re-implantation can be successful, with 64.3% of implants surviving long-term, suggesting patient factors and location are key to recurring implant failure.
Area of Science:
- Dental Implantology
- Oral and Maxillofacial Surgery
- Reconstructive Dentistry
Background:
- Dental implants are a primary solution for tooth loss rehabilitation.
- Despite high success rates, recurring implant failures at the same site present a clinical challenge.
- Understanding failure patterns is crucial for improving long-term outcomes.
Purpose of the Study:
- To investigate the causes of recurrent dental implant failure at the same anatomical location.
- To evaluate the success rates and outcomes of re-implantations following repeated failures.
- To identify factors associated with repeated implant failure.
Main Methods:
- Retrospective analysis of 13 patients with 2 or more implant failures at the same site (2004-2017).
- Review of implant characteristics, failure timing, causes, and radiographic data.
- Evaluation of re-implantation strategies and long-term survival rates.
Main Results:
- 14 implants failed repeatedly in the same site, most commonly in the maxillary molar region.
- Initial failures often occurred post-prosthetic loading (3.8 months); subsequent failures varied in timing.
- Re-implantation procedures resulted in a 64.3% survival rate after an average of 60 months.
Conclusions:
- Recurring dental implant failure can be linked to factors like overloading, infection, patient age, sex, and implant location.
- Implant type, bone augmentation, and materials appear less critical to repeated failure.
- Successful re-implantation is achievable, emphasizing the need for careful case selection and management.
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