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A Retrospective Analysis of Maxillary Overdentures with Nonsplinted Implants
The International Journal of Oral & Maxillofacial Implants
|January 12, 2026
Summary
Maxillary implant overdentures using non-splinted implants show high implant survival but lower prosthesis survival. Careful treatment planning considering opposing dentition is recommended to minimize complications.
Area of Science:
- Dentistry
- Prosthodontics
- Implantology
Background:
- Edentulous maxilla rehabilitation presents challenges.
- Implant overdentures offer a viable solution.
- Non-splinted implant designs are increasingly utilized.
Purpose of the Study:
- Evaluate implant and prosthesis survival rates for maxillary implant overdentures retained by non-splinted implants.
- Identify complications associated with this treatment modality.
Main Methods:
- Retrospective study of 76 patients with maxillary implant overdentures (minimum 6 months follow-up).
- Chart review to assess implant and prosthodontic outcomes.
- Descriptive statistics and Spearman correlation analysis.
Main Results:
- Implant survival rate: 96.9% post-prosthesis delivery.
- Prosthesis survival rate: 78.9%, with 16/76 patients requiring prosthesis remake.
- Most frequent complication: tooth debonding (21.2%).
- Opposing dentition significantly correlated with increased technical complications (r(75)=.24, P < .05).
Conclusions:
- High implant survival rates were observed, consistent with prior research.
- Prosthesis survival rates were lower than previously reported for various maxillary implant overdenture designs.
- Treatment planning must prioritize opposing dentition to mitigate overloading and technical complications.
