title: Preservation of the postextraction alveolar ridge: a clinical and histologic study.
abstract: The aim of this investigation was to assess the possibility of preserving the buccal and lingual plates of a postextraction socket from resorption using bone filler after tooth extraction. In 10 patients, 10 single extraction sites in the posterior area received a bone substitute. The osteoconductive material was covered by a collagen membrane in all cases. Contour changes of the alveolar process were evaluated intraorally using a surgical caliper over a 4-month period. Four months after extraction, a specimen was harvested from the area previously augmented with bone filler, and histologic analysis was performed. The results demonstrated that it was possible to preserve about 85% of the initial ridge dimensions, allowing for correct implant placement. From a histologic point of view, new bone formation was detected in all sites, with a 25% average residual presence of the graft particles. This investigation confirms the benefit of augmenting an extraction socket with bone substitutes.
authors.affiliation: dacardar@tin.it
authors.forename: Daniele
authors.initials: D
authors.lastname: Cardaropoli
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Cardaropoli
mesh_terms: D000328:Adult; D016301:Alveolar Bone Loss / Q000517:prevention & control*; D000539:Alveolar Process / Q000473:pathology; D000540:Alveolar Ridge Augmentation / Q000379:methods; D001641:Bicuspid / Q000601:surgery; D001861:Bone Regeneration / Q000502:physiology; D001862:Bone Resorption / Q000517:prevention & control*; D018786:Bone Substitutes / Q000627:therapeutic use*; D003094:Collagen; D003475:Curettage / Q000379:methods; D003724:Dental Arch / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008567:Membranes, Artificial; D008875:Middle Aged; D008963:Molar / Q000601:surgery; D010012:Osteogenesis / Q000187:drug effects; D014081:Tooth Extraction / Q000009:adverse effects*; D020390:Tooth Socket / Q000601:surgery*
chemical_list: D018786:Bone Substitutes; D008567:Membranes, Artificial; D003094:Collagen