To provide a toothbrushing apparatus having a new vibrator which realizes efficient tooth cleaning since a vibrating operation is uniformly performed completely neglecting the difference of the tooth alignment shape of respective persons and the difference of the degree of staining depending on parts, etc., in a conventional toothbrushing instrument for keeping a high frequency vibrator (ultrasonic vibrator) inside the mouth and removing adhered objects on teeth by the vibration of moisture inside the mouth.

The toothbrushing apparatus comprises: the vibrator composed by laterally arraying a plurality of vibration parts 13 constituted of flat piezoelectric elements, disposing lead electrode parts 12a and 12b to the respective vibration parts and coating the vibration parts and the lead electrode parts with an appropriate protective coating 11; a lead wire in an appropriate length for connecting the lead electrode parts and a control part; and the control part for controlling an application voltage to the vibration parts through the lead wire and the lead electrode parts.