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

• Published in: Clinical oral implants research 2018-05, Vol.29 (5), p.435-442
• Main Authors: Tomasi, Cristiano, Donati, Mauro, Cecchinato, Denis, Szathvary, Isacco, Corrà, Enrico, Lindhe, Jan
• Format: Article
• Language: English
• Subjects: 1972; Adult; Aged; Animals; bio-oss(r); biomaterial; bone formation; Bone grafts; Bone healing; Bone Substitutes - therapeutic use; Cattle; Collagen; complete-denture wearers; Computed tomography; Cone-Beam Computed Tomography; Dentistry; dog; Engineering; extraction socket; Female; fresh extraction; Grafting; Healing; Humans; Jaw; journal of prosthetic dentistry; llgren a; Male; Middle Aged; Odontologi; Oral Surgery & Medicine; p120; post-extraction; randomized clinical-trial; ridge preservation; single-tooth extraction; sites; Sockets; Teeth; tissue alterations; Tooth Extraction - adverse effects; Tooth Extraction - methods; Tooth extractions; Tooth Socket - diagnostic imaging; Tooth Socket - pathology; Tooth Socket - surgery; v27; Wound Healing
• ISSN: 0905-7161; 1600-0501
• DOI: 10.1111/clr.13141

Objective To 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 methods Twenty seven subjects and 28 extraction sites were included. Immediately after the removal of the tooth and after 6 months 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. Results The 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 (≤ 1 mm). Conclusion A 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.