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Bucco-lingual bone remodeling around implants placed into immediate extraction sockets: a case series
Ugo Covani1, Roberto Cornelini, Antonio Barone
1Department of Biophysical, Medical and Odontostomatological Sciences and Technologies, Medical School, University of Genova, Italy.
Journal of Periodontology
|April 2, 2003
Summary
Immediate implants show successful bone healing and remodeling without guided bone regeneration (GBR). Bone width reduced horizontally, indicating natural bone apposition and resorption for stable implant integration.
Area of Science:
- Dental Implantology
- Oral Surgery
- Periodontology
Background:
- Immediate implant placement post-extraction demonstrates high clinical success rates.
- Limited research exists on horizontal bone remodeling following immediate implant placement.
- This study investigates bone healing and remodeling around implants placed immediately after tooth extraction without guided bone regeneration (GBR).
Observation:
- Fifteen implants were placed in ten patients immediately after single-rooted tooth extraction, within alveolar confines.
- Small peri-implant bone defects were noted in most cases; no membranes or grafting materials were used.
- Buccal-lingual bone plate distance was measured post-placement and at second-stage surgery.
Findings:
- All peri-implant defects healed completely by second-stage surgery.
- Bone healing revealed new bone apposition at the implant neck and horizontal bone resorption, reducing width.
- Mean buccal-lingual bone distance decreased from 10.5 mm to 6.8 mm.
Implications:
- Coronal bone remodeling around immediate implants involves both apposition and resorption, leading to width reduction.
- Complete defect healing occurred without GBR, suggesting natural regenerative capacity.
- Absence of complications may be linked to the non-use of barrier membranes and grafting materials.