New cross sonic piezosonic cutting blade geometry design: pilot study

The principle of piezosurgery is “pressure electrification”. When electrical voltage is applied to certain materials such as quartz and Rochelle salts, it causes the materials to expand and contract, producing ultrasonic vibrations. This device uses ultrasonic vibration at 60–210 μm/s at 24–36 kHz to selectively remove bone with minimal damage to soft tissues such as blood vessels and nerves. In addition, it provides excellent visibility due to its cavitation effect. Piezoelectric surgery uses low-frequency ultrasonic vibration for osteotomy, which minimizes the risk of damage to soft tissue (nerves, vessels and mucosa). Micrometric vibration ensures precise cutting action and allows operative control, with consequent increased safety, in anatomical areas that are difficult to access. The aim of this study is to provide a device capable of providing a smaller contact area, less effort, lower temperature generation, faster cutting, shorter surgery time, shorter post-operative time and maxillofacial, orthopedic, neurosurgical and otorhinolaryngological procedures. The pilot study presented in this article is about the development of a new piezo tip design, which is not commercialized on the Brazilian market, due to the studies and laboratory analyses being carried out. For this reason, there are no preliminary studies published with results for comparison. Our aim is to publish this pilot study and more in-depth studies are in the development stage for future publication. A technical note on the development of the new design was published showing the difference between the cross sonic tip and conventional tips, showing its main property which is the angled and multidirectional teeth, reducing the contact area and thus bringing the benefits presented in this article with a pilot study.