- The Myobrace appliance is to be used for one to two hours each day, plus overnight while sleeping. The patient's teeth may become slightly sensitive in the early stages of treatment. - This is quite normal, however, if pain becomes excessive, decrease application time with the aim to build it back up once the appliance is accustomed to and sensitivity subsides. - The design features of the T4 are suited to finalize dental alignment, while retaining arch form, breathing and myofunctional habits in the developing permanent dentition. **For further product information, please contact Chat Support**