Results: Among the 47 cases ,33 cases were teeth pulpless tissue including 14 endodentically treated teeth and 14 cases were vital teeth with periodontitis ,cracked tooth and occlusal traumatism.
英
美
- 結果:牙冠縱折多見(jiàn)后牙,以上頜第一磨牙為多見(jiàn),其中無(wú)髓牙33例,牙折裂前有近一半曾作過(guò)根管治療,活髓牙14例,存在不同程度的牙隱裂,牙周炎和咬合創(chuàng )傷。
