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Effect of socket grafting with deproteinized bone mineral: An RCT on dimensional alterations after 6 months

Journal article
Authors Cristiano Tomasi
Mauro Donati
D. Cecchinato
I. Szathvary
E. Corra
Jan Lindhe
Published in Clinical Oral Implants Research
Volume 29
Issue 5
Pages 435-442
ISSN 0905-7161
Publication year 2018
Published at Institute of Odontology
Pages 435-442
Language en
Keywords biomaterial, bone formation, extraction socket, grafting, humans, complete-denture wearers, randomized clinical-trial, fresh extraction, sockets, single-tooth extraction, ridge preservation, bio-oss(r), collagen, tissue alterations, post-extraction, sites, dog, Dentistry, Oral Surgery & Medicine, Engineering, llgren a, 1972, journal of prosthetic dentistry, v27, p120
Subject categories Dentistry


ObjectiveTo examine if (i) characteristics of the fresh extraction socket site influenced subsequent dimensional alterations and (ii) placement of deproteinized bovine mineral in the socket affected volumetric change during healing. Materials and methodsTwenty seven subjects and 28 extraction sites were included. Immediately after the removal of the tooth and after 6months of healing, stone and virtual models of the jaw were produced. A cone beam computerized tomography scan was obtained immediately after extraction and the thickness of the buccal bone wall at the extraction site was measured. Extraction sites were randomly assigned to test or control group. In the test group, extraction sockets were filled with deproteinized bone mineral and covered with a collagen membrane. In the control group, only a collagen membrane was placed. ResultsThe thickness of the buccal bone wall at the extraction site influenced the amount of volume reduction that occurred. Socket grafting influenced the degree of ridge diminution only at sites where the buccal bone wall was thin ( 1mm). ConclusionA graft comprised of collagen-enriched deproteinized bovine bone mineral, placed to fill extraction sockets failed to influence the overall diminution of the ridge that occurred during healing. The thickness of the buccal bone wall apparently had a significant influence on volumetric alterations of the edentulous ridge following tooth extraction.

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