Devices for treating trismus and methods of use

A method for treating Trismus in a patient, said method comprising:

• providing a device being configured to be located completely within the mouth of the patient without any portion extending out of the mouth of the patient, said device comprising a pair of teeth-receiving plates pivotably connected to each other and an adjustable biasing assembly providing a bias force to said teeth-receiving plates and for establishing a desired spacing between anterior portions of said teeth-receiving plates;
• operating said adjustable biasing assembly to establish a first desired spacing between said anterior portions of said teeth-receiving plates;
• pivoting said teeth-receiving plates with respect to each other to bring said anterior portions of said teeth-receiving plates closely adjacent to each other;
• and
• inserting said device completely within the mouth of the patient wherein upper teeth of the patient are located within portions of one of said pair of teeth-receiving plate and lower teeth of the patient are located within portions of the other of said pair of teeth-receiving plates, whereupon the bias provided by said spring in said desired expanded state or said desired contracted state causes said teeth-receiving plates to naturally pivot apart from each other to a desired open position wherein said anterior portions of said teeth-receiving plates are at said first desired spacing from each other.