涡轮手机是牙科医生常用的重要工具之一。目前使用的涡轮手机机头内的结构分为两种。一为可快速更换的成品总承，多为进口手机装备，价格较贵。另一种是两端为轴承中间以三瓣夹轴簧连接卡在机头内。无论那一种一旦损坏，给工作造成不便。针对日常工作的使用及保养谈几点体会。 Turbo mobile phones are one of the most important tools used by dentists. There are two types of structures in the head of a currently used turbine handpiece. One is the total replacement of finished products that can be quickly replaced. Most of them are imported mobile phones, which are more expensive. The other is that the two ends of the bearing are connected with a three-clamped spring in the middle of the bearing. No matter what kind of one is damaged, it will cause inconvenience to the work. Attendance on the use of daily work and maintenance of a few experiences.