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Implant failure and associated risk indicators: A retrospective study
Joan Takamoli1, Andres Pascual1, Josep Martinez-Amargant1
1Department of Periodontology, Universitat Internacional de Catalunya, Barcelona, Spain.
Clinical Oral Implants Research
|February 25, 2021
Summary
Dental implant failure rates were 2.1% early and 8.9% late. Factors like younger age, smoking, and poor hygiene access increased late implant loss risk.
Area of Science:
- Dental Implantology
- Oral Surgery
- Prosthodontics
Background:
- Dental implant therapy is a common restorative solution.
- Understanding factors influencing implant survival is crucial for long-term success.
Purpose of the Study:
- To evaluate early and late dental implant loss rates.
- To identify patient- and implant-related variables associated with implant failure.
Main Methods:
- Retrospective analysis of 190 patients and 710 implants treated between 2001-2012.
- Random selection from an electronic database for data collection.
- Primary outcome: early and late implant loss.
Main Results:
- Overall early implant failure rate was 2.1% (0.6% of implants).
- Late implant failure rate was 8.9% (3.7% of implants) after a mean follow-up of 5 years.
- Late failure associated with patients <55 years (OR=3.62), smokers/former smokers (OR=6.25), and implants lacking interproximal hygiene access (OR=7.25).
Conclusions:
- Early and late implant failure rates were 2.1% and 8.9% at the patient level, respectively.
- Younger age (<55 years), smoking history, and compromised interproximal hygiene access are significant risk factors for late dental implant failure.
