The invention relates to an ultrasonic
dental scaler for a
brush bulged after being inflated. The ultrasonic
dental scaler comprises a U-shaped tooth cleaning head with an
upper tooth slot and a lowertooth slot, a main
machine, and a micro ultrasonic
transducer, wherein a
brush is arranged in the tooth slots; a U-shaped inner chamber is further arranged in the U-shaped tooth cleaning head; at least one micro ultrasonic
transducer is further arranged in the U-shaped inner chamber; the outer side surface of the U-shaped tooth cleaning head is further connected with an
electric wire; the
electric wire is electrically connected with the micro ultrasonic
transducer; a pipeline is further connected on the outer side surface of the U-shaped tooth cleaning head; the pipeline is communicated withthe U-shaped inner chamber; and the main
machine comprises a PLC circuit board, a micro
air pump, a control button module and the like. A way of bulging the
brush by inflating is adopted, and ultrasonic
waves are utilized for performing high-frequency vibration on the bulged brush, so that inner and outer surfaces of teeth and tooth gaps of inner and outer surfaces are comprehensively and synchronously cleaned without a dead corner in an all-around mode through the brush in the tooth slots, and therefore, the problem that the teeth are damaged as a result of excessive cleaning is avoided, andthe problem of the cleaning is incomplete and is not thoroughly is avoided.