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Preservation of Alveolar Bone in Extraction Sockets Using Bioabsorbable Membranes
Author(s) -
Lekovic Vojislav,
Camargo Paulo M.,
Klokkevold Perry R.,
Weinlaender Michael,
Kenney E. Barrie,
Dimitrijevic Bozidar,
Nedic Melica
Publication year - 1998
Publication title -
journal of periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.036
H-Index - 156
eISSN - 1943-3670
pISSN - 0022-3492
DOI - 10.1902/jop.1998.69.9.1044
Subject(s) - dental alveolus , buccal administration , alveolar ridge , dentistry , medicine , resorption , extraction (chemistry) , alveolar process , membrane , surgery , chemistry , implant , pathology , biochemistry , chromatography
T he purpose of this study was to evaluate the clinical effectiveness of a bioabsorbable membrane made of glycolide and lactide polymers in preserving alveolar ridges following tooth extraction using a surgical technique based on the principles of guided bone regeneration. Sixteen patients requiring extractions of 2 anterior teeth or bicuspids participated in the study (split‐mouth design). Following elevation of buccal and lingual full‐thickness flaps and extraction of teeth, experimental sites were covered with bioabsorbable membranes; control sites did not receive any membrane. Titanium pins served as fixed reference points for measurements. Flaps were advanced in order to achieve primary closure of the surgical wound. No membrane became exposed in the course of healing. Reentry surgeries were performed at 6 months. Results showed that experimental sites presented with significantly less loss of alveolar bone height, more internal socket bone fill, and less horizontal resorption of the alveolar bone ridge. This study suggests that treatment of extraction sockets with membranes made of glycolide and lactide polymers is valuable in preserving alveolar bone in extraction sockets and preventing alveolar ridge defects. J Periodontol 1998;69:1044–1049 .