- The A3 focuses on final alignment of the teeth while retaining the arch form, breathing and myofunctional habits. - It is the firmest appliance in the series, designed to provide the best retention of arch form and habits. - By this stage of treatment, patients' teeth will be mostly aligned and, therefore, the A3 can be used to finalize any remaining mild malocclusion. - If desired, optimum final alignment can be achieved with braces or sequential aligners combined with the Myobrace for Braces series. **For further product information, please contact Chat Support**