A Bone Regenerative Approach to Alveolar Ridge Maintenance Following Tooth Extraction. Report of 10 Cases

牙槽嵴 牙科 牙槽 山脊 牙槽突 萃取(化学) 软组织 医学 口腔正畸科 植入 外科 化学 地质学 色谱法 古生物学
作者
Vojislav Lekovic,E. Barrie Kenney,Michael Weinlaender,Thomas J. Han,Perry R. Klokkevold,Melica Nedic,Marco Orsini
出处
期刊:Journal of Periodontology [Wiley]
卷期号:68 (6): 563-570 被引量:474
标识
DOI:10.1902/jop.1997.68.6.563
摘要

T en patients who required two or more anterior teeth extractions were utilized in this study. Extraction procedures were carried out with a full thickness surgical flap approach. After flap reflection, teeth were removed with a minimum of trauma to the surrounding bone. Following extraction silicone‐based impression techniques were used to produce a model of the alveolar process and small metal pins were placed in the alveolus to be used as fixed points to make measurements of ridge dimensions. One socket was covered with an expanded polytetrafluoroethylene (ePTFE) barrier membrane (experimental site); the other socket was a conventional control. The soft tissue flaps were then mobilized using periosteal releasing incision and the wound closed with ePTFE mattress sutures. Six months following extraction, patients were treated with flap surgery to expose both extraction sites to remove the ePTFE membranes and to measure ridge dimensions using the pins as fixed points. Clinical and model measurements have shown statistically significant better ridge dimensions at experimental sites than at control ( P ≤ 0.05). Three patients with exposed membranes had similar dimensional changes as controls. Results from this study suggested that this improved technique offers a predictable alveolar ridge maintenance enhancing the bone quality for dental implant procedures and esthetic restorative dentistry. J Periodontol 1997;68:563–570 .
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