Cancer existing in the oral cavity is frequently caused by the heavy use of tobacco, alcohol and betel quid. Most of the patients usually need adjuvant or definitive radiotherapy. However, radiation-induced jaw locking, one of the treatment complications associated with spasm, fibrosis, and contraction of the oral muscles and temporomandibular joint, will limit jaw movement and prevent mouth opening. Without lifelong preventive rehabilitation, the inability to fully open the jaw jeopardizes various daily life functions including impaired nutrition, speech, and oral hygiene with carried teeth someday.

By using pulsed magnetic expulsion force between Front End Maglev and Back End Support designed on the brace, the product is able to exert a leverage effect to depress the mandible and rotate the TM joint for repeated mouth opening and jaw exercise.

The unfortunate symptom requires long-lasting and costly care. Therefore, using telehealth to reduce the expense for patients is also vital. With the straightforward and proactive style app, the user can automatically record their daily progress. Meanwhile, the doctor can directly observe the patient's condition remotely and give feedback without in person.

Despite various trismus rehabilitation devices designed, patients usually give up to keep the exercise due to the discouraging results and extremely painful treating experience. Moreover, a great number of patients even break their teeth when using these products. Therefore, the system offers different and customized types or levels of treatments based on individual conditions. Additionally, in terms of software, it’s one thing to design the user interface like a stream music application to try to make it accessible and another to access people to do other matters to distract attention from the treatment.