The temporo-mandibular joint (TMJ) and the way the teeth connect to each other directly influence the longevity and natural appearance of the face and mouth. If the TMJ and the teeth are in harmony, this protects the joints, the teeth from wearing and breaking, and the bone and gums from receding. Natural unworn teeth result in efficient chewing and maintains the youthful appearance of healthy teeth. All these factors work together to provide a "self protected bite" resulting in a healthy TMJ, sharp efficient teeth, and strong healthy gum and bone levels.
There are three principles to the healthy structural stability of the bite as defined by Dr. Lee: