It cosistes symptoms of pulptitis and tramatic occlusin.The treatment of pulpitis tramatic occlusion were occlussion adjustment in the all patients and canel therepy for 13 patients.

• 所有患者均可检查到明显的咬合创伤，但查不到任何其它引起牙髓炎的病因，治疗包括单纯调后缓解4例，行根管治疗牙髓治疗15例题。