- The T4 focuses on final alignment of the teeth while retaining the arch form, breathing and myofunctional habits. - It is the firmest appliance in the series, providing the best retention. - If the patient requires dental alignment, the T3 is used and then the T4 to finalize any remaining mild malocclusion. - Move to the Myobrace for Adults series if further treatment or retention is required in the permanent dentition. **For further product information, please contact Chat Support**