Are there any contradictions to MAD/MAS?
MAD or MAS is not for everyone; they are only prescribed when there are certain anatomical conditions present. They are also useless when the teeth aren't sufficient enough to hold these molds in place, and if a patient has some type of dental issue, they are also ineffective. They may actually worsen the condition, rather than help it. And, also, if the jaw is already in an ideal position and due to other causes, the oral appliance would not benefit the patient at all.