Treatment principles of nigh molar.

1. Removal of pathogenic factors in particular psychological factors and local factors (such as blending).
2. Bruxism incidence and treatment of the systemic disease.
3. The intractable cases should pay attention to the protection of periodontal tissue and muscle. Can be made smooth hard surface of the pad, covering the teeth surface and extend to the tongue side of the cheek shape high, to avoid lateral occlusal interference generated power, to be regularly checked.
4. Treatment due to excessive wear and tear caused by various complications.