An unbalanced bite (aka "occluso-muscle disorder") can cause hyperactivity of the jaw muscles which will cause damage to the teeth, the bone supporting the teeth, the jaw joint or TMJ and the jaw muscles themselves. Pain is often associated with these damaged structures.
Left side shows proper and relaxed muscle activity because the bite or occlusion is balanced. The right side shows hyperactivity of the muscles caused by caused an unbalanced bite. Along with damaging the teeth, the bone supporting the teeth and the jaw joint or TMJ, the jaw muscles themselves can hurt from cramping, strain and myofascial pain.
1) An unbalanced bite can damage the teeth:
The damage can be subtle, or very obvious when excessive grinding of the teeth or bruxing is involved.
Severe tooth wear caused by bruxing or grinding.
2) An unbalanced bite can damage the bone around the teeth:
3) An unbalanced bite can also damage the jaw joint (TMJ):
Damaged jaw joint (TMJ).