Braces are still the most effective way of straightening teeth, however, they do not address many of the problems causing the crooked teeth. Most orthodontic problems, particularly crowded teeth and an underdeveloped lower jaw, are caused by habits such as mouth breathing and tongue thrusting.

If these habits are not corrected, treatment time in retainers will be increased and, once they are removed, the teeth can crowd up again. Relapse can occur even with the best retainers. Correcting these poor oral habits with the Trainer for Braces series appliances by MRC allows braces to work more efficiently by reducing the pressure of the tongue, cheeks and lips against the braces, while simultaneously correcting the poor myofunctional habits that are the cause of malocclusion.