Department of Oral and Maxillofacial Implantology, Kanagawa Dental University, 82 Inaoka-cho, Yokosuka, 238-8580, Japan.
Int J Implant Dent. 2021 Mar 23;7(1):24. doi: 10.1186/s40729-021-00303-4.
In locations where the alveolar bone height is low, such as at the maxillary molars, implant placement can be difficult, or even impossible, without procedures aimed at generating new bone, such as sinus lifts. Various types of bone graft materials are used after a sinus lift. In our study, a three-dimensional image analysis using a volume analyzer was performed to measure and compare the volume of demineralized bovine bone mineral (Bio-Oss®) and carbonate apatite (Cytrans®) after a sinus lift, as well as the amount of bone graft material resorption. Patient data were collected from cone-beam computed tomography images taken before, immediately following, and 6 months after the sinus lift. Using these images, both the volume and amount of resorption of each bone graft material were measured using a three-dimensional image analysis system.
The amount of bone resorption in the Bio-Oss®-treated group was 25.2%, whereas that of the Cytrans®-treated group was 14.2%. A significant difference was found between the two groups (P < 0.001).
Our findings indicate that the volume of bone resorption was smaller in the Cytrans®-treated group than in the Bio-Oss®-treated group, suggesting that Cytrans® is more promising for successful implant treatments requiring a sinus lift.
在牙槽骨高度较低的部位，如在上颌磨牙区，若不进行旨在生成新骨的手术，如窦提升术，种植体的植入可能会很困难，甚至不可能。在窦提升术后，会使用各种类型的骨移植材料。在我们的研究中，使用体积分析器进行了三维图像分析，以测量和比较窦提升术后脱矿牛骨矿物质（Bio-Oss®）和碳酸磷灰石（Cytrans®）的体积以及骨移植材料吸收量。从接受窦提升术前、即刻和术后 6 个月的锥形束 CT 图像中收集患者数据。使用这些图像，使用三维图像分析系统测量了每种骨移植材料的体积和吸收量。
Bio-Oss®治疗组的骨吸收量为 25.2%，而 Cytrans®治疗组的骨吸收量为 14.2%。两组之间存在显著差异（P < 0.001）。
我们的研究结果表明，Cytrans®治疗组的骨吸收量小于 Bio-Oss®治疗组，这表明 Cytrans®在需要窦提升的成功种植体治疗中更有前途。
