Dental scaler

The utility model is suitable for the technical field of oral cavity cleaning equipment, and provides a dental scaler which comprises an energy converter and a work tip, the first end of the work tip is connected with the energy converter, the second end of the work tip is used for making contact with teeth, a first flow channel is formed in the work tip, a second flow channel communicated with the first flow channel is formed in the energy converter, and the dental scaler further comprises a water pump, the water pump is arranged on the side, away from the work tip, of the transducer, a liquid outlet of the water pump is communicated with the second flow channel, and a liquid suction opening of the water pump is used for being communicated with liquid supply equipment. According to the dental scaler provided by the utility model, the water pump works to convey the cooling liquid to the liquid outlet through the liquid suction port in sequence and output the cooling liquid from the second flow channel and the