Abstract: A dental handpiece structure has a head and a handle. A mounting passage is formed through the head. A positioning recess is formed in a handle end and connected to the mounting passage. A curved narrow tip is mounted to a tip end of the head. The mounting passage extends toward the narrow tip. A water outlet is formed in a proximal end of the narrow tip and is adjacent to the mounting passage. A light guiding strip is disposed in the mounting passage. The handle has a light source corresponding in position to the light guiding strip. As a result, light emitted by the light source is concentrated on the narrow tip, thereby improving visibility.

Abstract: A RFID (Radio Frequency Identification) reader is installed in the main unit of an ultrasonic scaler, which synchronizes with the antenna installed in the handpiece. Inside of The TIP (Insert or Piezo hand piece) consists of a tag, which uses RFID technology to read, write, and identify the information of the insert or tip. This provides the medical clinicians useful operation assistance, the necessary evidence on when to change to a new insert or tip, and to prevent improper usage of the insert or tip.

Abstract: A water guiding mechanism of teeth cleaning machine comprising a center shaft, a plastic base and an ‘O’ shape ring, the major character as following: a stainless-steel head is installed on the front of the center shaft, a bend is on the center of the stainless-steel head, a sleeve in on the front inner side of the plastic base, a silicon sleeve is on the front brink of the sleeve, the silicon sleeve wraps the backside of the stainless-steel head and around the bend, a compression chamber is installed between the back half of the silicon sleeve and the stainless-steel head; based on the structure described above, the compression chamber of the silicon sleeve is applied to guide and compress water, the stainless tip can aim upward, and achieve the effect to minimize the possibility to have water spray on patients' faces.

Abstract: A water guiding mechanism of teeth cleaning machine comprising a center shaft, a plastic base and an ‘O’ shape ring, the major character as following: a stainless-steel head is installed on the front of the center shaft, a bend is on the center of the stainless-steel head, a sleeve in on the front inner side of the plastic base, a silicon sleeve is on the front brink of the sleeve, the silicon sleeve wraps the backside of the stainless-steel head and around the bend, a compression chamber is installed between the back half of the silicon sleeve and the stainless-steel head; based on the structure described above, the compression chamber of the silicon sleeve is applied to guide and compress water, the stainless tip can aim upward, and achieve the effect to minimize the possibility to have water spray on patients' faces.