The invention provides an ultrasonic flushing instrument and relates to the field of oral
medical instruments. The ultrasonic flushing instrument comprises a
liquid storage tank, an
ultrasonic generator, a first water pump, a second water pump, a
recovery tank, a
handle, a back suction cavity, a flushing
syringe needle, a connecting
pipe, a flushing head, a first supporting rod, a second supporting rod, a first switch, a second switch, a third switch and multiple infusion tubes. In the using process, the first switch is turned on,
disinfectant liquid can be sprayed to root canals of the teeth of a patient, the third switch is turned on at the same time, sound
waves generated by the
ultrasonic generator can be used for loosening scraps and a
smear layer on the
root canal wall of the teeth during
root canal preparation to facilitate flushing and cleaning through the
disinfectant liquid, and the second switch can be turned on at the same time to suck back the
disinfectant liquid in a tooth marrow cavity into the
recovery tank in time. The ultrasonic flushing instrument is convenient to operate, saves time and labor, makes the time of a doctor beside a chair shorter, improves
treatment quality by the doctor and economical efficiency, and relieves the pain of the patient.