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Periodontitis, type 2 diabetes, and other risk factors for implant failure: A nested case-control study
Shaghayegh Sobhani1, Zheyan Liu2, Cher L Hoopes1,3
1Department of Periodontics, Columbia University College of Dental Medicine, New York, New York, USA.
Journal of Periodontology
|July 29, 2025
Summary
Type 2 diabetes (T2DM) and periodontitis significantly increase dental implant failure risk. Managing these conditions and maintaining periodontal health are crucial for successful implant outcomes.
Area of Science:
- Oral and Maxillofacial Surgery
- Periodontology
- Endocrinology
Background:
- Limited data exists on the link between Type 2 Diabetes Mellitus (T2DM) and periodontitis as risk factors for dental implant failure.
- This study aimed to investigate the association between T2DM, periodontitis, and the risk of dental implant failure.
Purpose of the Study:
- To determine the association between Type 2 Diabetes Mellitus (T2DM) and periodontitis with dental implant failure.
- To identify patient-related risk factors contributing to dental implant failure.
Main Methods:
- A nested case-control study with risk-set sampling was conducted.
- Data from 550 failed implants (cases) and 1156 control implants were analyzed.
- Univariate and multiple logistic regression analyses were used to evaluate risk factors.
Main Results:
- Smokers (OR=2.70), patients with T2DM (OR=1.70), and those with periodontitis (OR=12.82) had significantly elevated implant failure risks.
- Advanced periodontitis (Stage III/IV) increased failure risk independently of T2DM and smoking (OR=1.64).
- Independent risk factors included periodontitis history, smoking, osteoporosis, and statin use; periodontal maintenance reduced failure risk.
Conclusions:
- T2DM and periodontitis are substantiated as significant risk factors for dental implant failure.
- Patient-related factors like immunosuppressive medication use, smoking, and compliance critically influence implant success.
- Effective management of systemic health and adherence to periodontal care are vital for improving dental implant prognosis.
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