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Int J Periodontics Restorative Dent. 2018 Mar 7. doi: 10.11607/prd.3152. [Epub ahead of print]

Histologic and Radiographic Analysis of Nonhealing Extraction Sockets Treated with Bio-Oss Collagen After a 4-Month Healing Period: A Prospective Descriptive Study in Humans.

Abstract

Healing of extraction sockets may sometimes result in formation of fibrous tissue instead of bone, even after 4 months, an occurrence that may hinder implant placement. The aim of this preliminary observational study was to histologically evaluate quality and amount of bone regeneration after treating nonhealing sockets with a bovine-derived xenograft enriched with porcine collagen (Bio-Oss Collagen, Geistlich) without barrier membranes. Biopsy specimens were collected during implant placement, 4 months after grafting. A total of 10 cases were treated and evaluated. In all cases, correct implant placement was possible and no implant failure occurred up to 6 months after loading. The histologic analysis demonstrated new bone formation in all specimens. The percentage of newly formed bone was 29.1% (SD 20.71%; range 5% to 48%). Xenograft particles in direct contact with newly formed bone were visible, and mature lamellar bone was observed in 8 cases.

PMID:
29513772
DOI:
10.11607/prd.3152

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