PROBLEM TO BE SOLVED: To perform not only periodontal/root canal treatment by an ultrasonic wave but also sterilization after the treatment by use of a single dental ultrasonic therapy device.SOLUTION: This dental ultrasonic therapy device includes: an ultrasonic handpiece 10 incorporating an ultrasonic transducer and an ultrasonic tip 20 detachably mounted to the ultrasonic handpiece 10. The dental ultrasonic therapy device includes: a light source 11 in a tip part of the ultrasonic handpiece and a liquid discharge port 21 near a tip part of the ultrasonic tip 20. The dental ultrasonic therapy device discharges a photosensitive substance liquid from the liquid discharge port 21 after the ultrasonic treatment, and next sterilizes a part after the ultrasonic treatment by irradiating light from the light source 11.COPYRIGHT: (C)2013,JPO&INPIT【課題】単一の歯科用超音波治療器を用いて、超音波による歯周・根管治療と、治療後の殺菌をも行えるようにした。【解決手段】超音波振動子を内蔵する超音波ハンドピース10と、該超音波ハンドピース10に着脱自在に装着される超音波チップ20とを有する。超音波ハンドピースの先端部に光源11を、超音波チップ20の先端部近傍に液体放出口21を有し、超音波治療後、液体放出口21より光感受性物質液を放出し、次いで、光源11より光を照射して、超音波治療後の箇所を殺菌する。【選択図】図1
