A dental guard has a first portion which is molded or shaped to conform to the teeth of either one of the upper or lower jaw, a second portion which is a resilient material having passages therethrough to permit passage of air, and a third portion adapted for contact with the other one of the upper or lower jaw. The dental guard provides enhanced TMJ stability, protects teeth, allows air flow for breathing, protects the airway from foreign objects, and allows compression in case of impact or necessity of swallowing.