这老人咬上骨头把一颗牙折断了。
基牙折裂及折断占拆除原因的第二位为6 1例；
The second cause was fracture and broken down of the abutment (61 cases);
结论全铸瓷高嵌体是后牙牙体缺损、牙体折断的可靠修复方法。
Conclusion All-ceramic onlay is an ideal and reliable restoration method for teeth body restoration and protection.
结论：天然牙—种植体联合桥主要支撑力的部位是颈缘处，该处为种植体折断机率最大的区域；
Conclusion The main supporting force position is on abutments of the bridge supported by tooth-implant; The implant neck is the most possible area for fracture.
目的观察牙冠延长术治疗断缘位于龈下的冠根联合折断牙的临床效果。
Objective:To observe the clinical effect of tooth extrusion with progressive methods for anterior teeth with crown-root fracture.
目的观察牙冠延长术治疗断缘位于龈下的冠根联合折断牙的临床效果。
Objective:To observe the clinical effect of tooth extrusion with progressive methods for anterior teeth with crown-root fracture.
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