New Osseodensification Implant Site Preparation Method to Increase Bone Density in Low-Density Bone: In Vivo Evaluation in Sheep.
New Osseodensification Implant Site Preparation Method to Increase Bone Density in Low-Density Bone: In Vivo Evaluation in Sheep.
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DOI：
10.1097/id.0000000000000358
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发表时间：
2016-02
影响因子：
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通讯作者：
Podaliri Vulpiani M
中科院分区：
文献类型：
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作者：
Trisi P;Berardini M;Falco A;Podaliri Vulpiani M
本研究的目的是评估一种新的种植位点准备手术技术，该技术可以提高骨密度、牙槽嵴宽度和种植体二次稳定性。暴露 2 只羊的髂嵴边缘，并使用传统钻孔方法将 10 个 3.8 × 10 mm Dynamix 植入物 (Cortex) 插入左侧（对照组）。使用骨致密化程序 (Versah) 将 10 个 5 × 10 毫米 Dynamix 种植体 (Cortex) 插入右侧（测试组）。愈合2个月后，处死羊，进行生物力学和组织学检查。愈合2个月后未观察到种植失败。在测试组中检测到牙槽嵴宽度和骨体积百分比 (%BV) 显着增加（约高 30%）。与对照组相比，测试组记录了明显更好的移除扭矩值和侧向力下的微运动（实际微运动值）。本体内研究中使用的骨致密化技术被证明能够相对于传统种植体钻孔技术增加插入低密度骨中的牙种植体周围的％BV，这可能在增强种植体稳定性和减少微移动方面发挥作用。
The aim of this study was to evaluate a new surgical technique for implant site preparation that could allow to enhance bone density, ridge width, and implant secondary stability. The edges of the iliac crests of 2 sheep were exposed and ten 3.8 × 10-mm Dynamix implants (Cortex) were inserted in the left sides using the conventional drilling method (control group). Ten 5 × 10-mm Dynamix implants (Cortex) were inserted in the right sides (test group) using the osseodensification procedure (Versah). After 2 months of healing, the sheep were killed, and biomechanical and histological examinations were performed. No implant failures were observed after 2 months of healing. A significant increase of ridge width and bone volume percentage (%BV) (approximately 30% higher) was detected in the test group. Significantly better removal torque values and micromotion under lateral forces (value of actual micromotion) were recorded for the test group in respect with the control group. Osseodensification technique used in the present in vivo study was demonstrated to be able to increase the %BV around dental implants inserted in low-density bone in respect to conventional implant drilling techniques, which may play a role in enhancing implant stability and reduce micromotion.