A dental piezoelectric ultrasonic magnetic switching scaler handpiece is activated by magnetic means. The dental piezoelectric scaler handpiece includes a housing that contains a fixed magnet and a magnetically activated switch. An activation magnet longitudinally slides along the outside of the housing from a de-energized position to an energized position. The activation magnet is biased to the de-energized position by the fixed magnet. When a user moves the activation magnet away from the fixed magnet and toward the magnetically activated switch, the magnetic field of the activation magnet activates the magnetically activated switch and turns the dental scaler handpiece on.一種藉由磁性裝置所控制之牙科壓電超音波磁性切換潔牙機頭。該牙科壓電潔牙機頭包括一筒身,其包含一固定磁鐵和一磁性致動開關,一致動磁鐵沿該筒身之外側從消磁位置到激磁位置縱向地滑動,該致動磁鐵藉由該固定磁鐵被偏移到消磁位置,當使用者移動該致動磁鐵遠離該固定磁鐵並朝向磁性致動開關時,該致動磁鐵的磁場控制該磁性致動開關並開啟該牙科壓電潔牙機頭。20‧‧‧牙科壓電潔牙機頭22‧‧‧前蓋23‧‧‧握筒24‧‧‧底筒26‧‧‧牙科工具27‧‧‧超音波壓電傳感器29‧‧‧水電母接頭31‧‧‧水電公接頭30‧‧‧固定磁鐵32‧‧‧固定磁鐵套筒34‧‧‧磁性致動開關36‧‧‧致動磁鐵38‧‧‧開口一40‧‧‧致動磁鐵環
