Using the intact periosteum for horizontal bone augmentation of peri-implant defects: a retrospective cohort study
Using the intact periosteum for horizontal bone augmentation of peri-implant defects: a retrospective cohort study
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DOI：
10.1016/j.bjoms.2022.09.012
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发表时间：
2022-12-01
影响因子：
1.8
通讯作者：
Qu, Yili
中科院分区：
文献类型：
--
作者：
Deng, Chen;Yi, Zumu;Qu, Yili
本研究的目的是观察完整骨膜引导骨再生（GBR）和软块脱蛋白牛骨矿物质（DBBM）引导骨再生（GBR）的硬组织变化，并评估水平骨增强的结果是否随初始种植体周围缺损深度的变化而变化。将40例单牙缺失伴种植体周围缺损的患者根据术前缺损深度（< 2、2 ~ 4、4 ~ 6 mm）分为三组。术前、术后及随访6个月时采集锥形束计算机断层扫描（CBCT）图像并进行重建。测量颊骨宽度（BBW-0、-3、-5）、牙槽骨宽度（ABW-0、-3、-5）和增广面积体积。6个月随访时，BBW、各水平ABW和骨体积的增加均有统计学意义（p < 0.001）。各组间骨尺寸、骨吸收率差异均无统计学意义（p < 0.05）。组织学分析发现与骨膜下骨移植物密切接触的新骨形成。在本研究的局限性内，所获得的见解可能有助于建议在种植体周围缺陷深度为的情况下，可以获得可比较且可接受的水平骨增强结果
The objectives of this study were to observe hard tissue changes in guided bone regeneration (GBR) with intact periosteum and soft block deproteinised bovine bone mineral (DBBM), and evaluate whether the result of horizontal bone augmentation varied by initial peri-implant defect depth. Forty patients with a single missing tooth and contained peri-implant defect were categorised into three groups according to their presurgical defect depth (< 2, 2-4, and 4-6 mm). Cone-beam computed tomography (CBCT) images were collected and reconstructed preoperatively, postoperatively, and at six months' follow up. The buccal bone width (BBW-0,-3,-5), alveolar bone width (ABW-0,-3,-5) and volume of augmented area were measured. At the six-month follow up the increase in BBW, ABW at all levels, and in bone volume, was statistically significant (all p < 0.001). No statistical significance in bone dimensions or bone resorption was found among groups (all p > 0.05). Histological analysis detected new bone formation in intimate contact with bone grafts underlying the periosteum. Within the limitations of this study, the insights gained may be of assistance to suggest that comparable and acceptable results of horizontal bone aug-mentation can be achieved in cases of peri-implant defect depth of