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Osseointegrated implants for single-tooth replacement: a prospective 5-year multicenter study
1Department of Restorative Dentistry, University of Western Australia, Perth, Australia.
Summary
Brånemark implants demonstrate high success rates for single-tooth restorations over five years. This prospective study found predictable outcomes with minimal bone loss and good peri-implant health.
Area of Science:
- Dental Implantology
- Prosthodontics
- Oral Surgery
Background:
- Single-implant restorations are crucial for replacing missing teeth.
- Long-term success data for specific implant systems are essential for clinical decision-making.
Purpose of the Study:
- To evaluate the 5-year clinical and radiographic outcomes of Brånemark implants used for single-tooth replacements.
- To assess implant success rates, crown function, peri-implant health, and marginal bone levels.
Main Methods:
- Prospective, international multicenter trial involving 107 Brånemark implants in 92 patients.
- Follow-up for 5 years, recording plaque/gingival indexes, probing depths, and marginal bone levels via radiographs.
- Analysis of cumulative success rates and complications.
Main Results:
- A cumulative success rate of 96.6% in the maxillae and 100% in the mandibles at 5 years.
- Marginal bone loss averaged less than 1 mm over the 5-year period.
- Good peri-implant health observed, comparable to natural teeth.
Conclusions:
- Brånemark implants provide safe and highly predictable results for single-tooth restorations over a 5-year period.
- The study supports the use of these implants for long-term functional and esthetic outcomes.
- Abutment screw loosening was the most common complication.