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Preservation of alveolar bone in extraction sockets using bioabsorbable membranes
V Lekovic1, P M Camargo, P R Klokkevold
1University of Belgrade, School of Dentistry, Faculty of Stomatology, Yugoslavia.
Journal of Periodontology
|October 17, 1998
Summary
This study shows that using bioabsorbable membranes made of glycolide and lactide polymers effectively preserves alveolar bone height and reduces ridge defects after tooth extraction, aiding guided bone regeneration.
Area of Science:
- Dental surgery
- Biomaterials science
- Regenerative medicine
Background:
- Alveolar ridge preservation is crucial after tooth extraction to prevent bone loss.
- Guided bone regeneration (GBR) techniques aim to restore bone dimensions.
- Bioabsorbable membranes offer a potential solution for GBR in extraction sockets.
Purpose of the Study:
- To evaluate the clinical effectiveness of a glycolide and lactide polymer membrane.
- To assess its role in preserving alveolar bone following tooth extraction.
- To investigate its application in guided bone regeneration.
Main Methods:
- A split-mouth study design involving 16 patients undergoing anterior or bicuspid extractions.
- Surgical placement of bioabsorbable membranes in experimental sites; control sites received no membrane.
- Measurement of alveolar bone dimensions using titanium pins as reference points at 6-month reentry.
Main Results:
- Experimental sites showed significantly less loss of alveolar bone height compared to control sites.
- Greater internal socket bone fill was observed in sites treated with the membrane.
- Reduced horizontal resorption of the alveolar bone ridge was noted with membrane application.
Conclusions:
- Glycolide and lactide polymer membranes are effective in preserving alveolar bone post-extraction.
- Membrane use aids in preventing alveolar ridge defects, supporting GBR principles.
- This biomaterial demonstrates clinical value in maintaining alveolar bone structure.