Ultrasonic devices, systems, and methods for orthodontic treatment performed with aligners are described. Such devices, systems, and methods 5 are to provide multiplicative treatment-duration shortening for patients under orthodontic treatment with aligners, such as clear aligners. Communication of desired ultrasound treatment can be communicated from an aligner to an ultrasound device by a communication means or a communication module using an identification number on the aligner and means of entering the 10 identification number into the system, an identification number on an external document and means of entering the identification number into the system, a scannable code and code reader, and an assessment by a dentist and means of entering the assessment into the system, a radio-frequency identification (RFID) transponder and RFID reader, a change in material properties of the 15 aligner and means of reading the material properties, or a change in optical properties and means of reading the optical properties.
