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Published on: July 1, 2013
Collagen membranes at immediate implants: a histomorphometric study in dogs
Marco Caneva1, Daniele Botticelli, Luiz Antonio Salata
1UNESP - Faculty of Dentistry of Araçatuba, São Paulo State University, SP, Brazil.
Clinical Oral Implants Research
|May 26, 2010
Summary
Collagen-resorbable membranes partially preserved the buccal bone crest outline around implants placed in extraction sockets. This technique showed potential for maintaining alveolar bone structure in immediate implant placements.
Area of Science:
- Dental Implantology
- Periodontology
- Biomaterials Science
Background:
- Immediate implant placement into extraction sockets is a common procedure.
- Maintaining alveolar bone height and width is crucial for esthetic and functional outcomes.
- Resorbable membranes are used to guide tissue regeneration.
Purpose of the Study:
- To assess the effect of collagen-resorbable membranes on hard tissue changes.
- To evaluate osseointegration of implants placed in extraction sockets.
- To compare outcomes with and without membrane coverage.
Main Methods:
- Implants were placed into mandibular extraction sockets in a dog model.
- Test sites used collagen-resorbable membranes; control sites did not.
- Submerged healing for 4 months followed by histomorphometric analysis.
Main Results:
- One control implant failed to integrate.
- Bone resorption occurred at both test and control sites.
- Membrane sites showed better preservation of the buccal alveolar bone crest (1.7 mm loss vs. 2.2 mm loss).
Conclusions:
- Collagen-resorbable membranes partially preserved the buccal alveolar bone outline.
- The membranes demonstrated a 23% improvement in buccal bone outline preservation.
- This suggests a benefit of membranes in maintaining ridge contour after immediate implant placement.
