目的：观察分体栓道式铸造桩核在磨牙残冠残根修复中的作用。
Objective: to observe the effect of casting anatomy bolt post-core in restoration of residual crown and root of molars.
目的观察栓体栓道式附着体在牙列缺损患者修复中的应用效果。
Objective To evaluate the clinical effects of the key-key way attachment.
方法：通过对固定桥变异桥体，即栓道式拼接金属桥体的设计、制作与临床应用，观察使用3 ~5年后的效果。
Methods: Variant pontic with modified key-way connection was designed, fabricated and used in patients who were followed up for 3 to 5 years to evaluate the effect.
方法：选择牙根分叉较大的磨牙残冠残根，经完善根管充填后，制作分体栓道式铸造桩核，然后精密铸造金属全冠修复。
Methods: The residual crown and root of large furcation molars by full root-fill were chosen. Then casting anatomy bolt post-core molars are restored with finely casting full crowns.
老栓候他平静下去，才低低的叫道，“小栓……你不要起来。”
老栓候他平静下去，才低低的叫道，“小栓……你不要起来。”
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