Department of Mechanical Engineering, University of Glasgow, Glasgow, UK.
IEEE Trans Ultrason Ferroelectr Freq Control. 2010 Sep;57(9):1936-42. doi: 10.1109/TUFFC.2010.1641.
Oral implantology is the branch of dentistry focused on the reconstruction of missing teeth and their supporting structures with natural or synthetic substitutes. Conventional instruments used during oral implantation exhibit severe operational limitations, especially in the presence of limited surgical access, anatomically delicate bone structures, and proximity to soft tissues, because of the high risk of injury. This paper illustrates the design and performance characteristics of two novel ultrasonic devices developed to improve the implantation process. The working frequency of both systems is in the 25 to 26 kHz range and the acoustic power is modulated in line with the specific operations. The first tuned device presented in this work relies on a planar vibration at its tip to drill holes in bone. The second exploits a longitudinal-flexural composite vibration mode which facilitates the insertion of dental implants into the jawbone. The vibration characteristics of the proposed systems are investigated using finite element (FE) models subsequently validated by experimental modal analysis (EMA). Ultimately, the operational benefits of the investigated devices are supported by clinical evidence.
口腔种植学是牙科学的一个分支，专注于用天然或合成替代品重建缺失的牙齿及其支撑结构。在口腔种植过程中使用的传统仪器存在严重的操作限制，特别是在手术通道有限、骨结构解剖精细以及靠近软组织的情况下，因为存在高损伤风险。本文介绍了两种新型超声设备的设计和性能特点，这些设备旨在改进种植过程。两个系统的工作频率都在 25 到 26 千赫兹范围内，声功率根据具体操作进行调制。本文介绍的第一个调谐设备依赖于其尖端的平面振动来在骨头上钻孔。第二个利用纵向弯曲复合振动模式，便于将牙种植体插入颌骨。所提出的系统的振动特性使用有限元（FE）模型进行研究，随后通过实验模态分析（EMA）进行验证。最终，临床证据支持所研究设备的操作优势。
