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Mandibular overdentures anchored to single implants: a five-year prospective study
G Cordioli1, Z Majzoub, S Castagna
1Department of Periodontology, School of Dentistry, University of Padova, Italy.
The Journal of Prosthetic Dentistry
|August 1, 1997
Summary
Single implants can successfully support mandibular overdentures in geriatric patients, improving oral function and comfort. This study found no implant loss over five years, demonstrating a viable treatment option for denture instability.
Area of Science:
- Dental Implantology
- Geriatric Dentistry
- Prosthodontics
Background:
- The optimal number of implants for mandibular overdenture support remains unclear.
- Conventional dentures often cause discomfort and functional issues for the elderly.
Purpose of the Study:
- To assess the efficacy of mandibular overdentures retained by single implants in a geriatric population.
- To evaluate implant success and patient-reported outcomes over a 5-year period.
Main Methods:
- Twenty-one geriatric patients received single-implant-retained mandibular overdentures.
- Standard two-stage surgical technique with O-Ring or ball attachments was used.
- Evaluations included implant success, oral comfort, soft tissue health, Periotest values, and bone levels.
Main Results:
- No implant failures occurred during the 5-year follow-up.
- Average marginal bone loss was 1.42 mm at 60 months.
- Patients reported significant improvements in oral comfort and function, despite high plaque indices.
Conclusions:
- Single-implant-retained mandibular overdentures offer a successful therapeutic alternative for elderly patients.
- This approach addresses discomfort and functional deficits associated with conventional dentures.