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A 7-year retrospective study of 423 immediate implants
Compendium of Continuing Education in Dentistry (Jamesburg, N.J. : 1995)
|April 9, 1998
Summary
Hydroxyapatite-coated implants show high success for immediate tooth replacement. Bone regeneration techniques using membranes and grafts achieved excellent long-term results in patients.
Area of Science:
- Dental Implantology
- Periodontology
- Oral Surgery
Background:
- Immediate tooth replacement after extraction is a common dental procedure.
- Hydroxyapatite-coated implants offer potential benefits for osseointegration.
- Bone regeneration techniques are crucial for managing bone defects around implants.
Purpose of the Study:
- To evaluate the long-term success rate of hydroxyapatite-coated implants used for immediate tooth replacement.
- To assess the efficacy of bone regeneration procedures using PTFE and collagen membranes with various augmentation materials.
Main Methods:
- A 7-year follow-up study of 423 hydroxyapatite-coated implants in 353 patients (aged 15-68).
- Implants replaced teeth lost due to periodontal disease, fractures, or endodontic issues.
- Bone defects were treated with polytetrafluoroethylene (PTFE) or collagen membranes, with or without hydroxyapatite or demineralized freeze-dried bone allograft.
Main Results:
- Histologic evaluation confirmed the viability of regenerated bone.
- A total of 284 PTFE and 139 collagen membranes were utilized.
- The study achieved a final success rate of 99.53% with only 2 implant failures over 7 years.
Conclusions:
- Hydroxyapatite-coated implants are highly successful for immediate tooth replacement.
- Bone regeneration techniques using membranes and grafts are effective in achieving high implant survival rates.
- This approach provides a reliable solution for restoring function and aesthetics after tooth extraction.