佛山科学技术学院学报 关键词：牙冠延长术；玻璃纤维桩；桩核冠 [gap=976]Key words：crown lengthening surgery; glass fiber post; post-and-core crown
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Objective To repair residual crowns and roots of anterior teeth with casting post core with metal porcelain crown.
目的探讨利用铸造核桩加金属烤瓷全冠来修复前牙残冠、残根的优点。
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.
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。
Objective: To study the effect of DMG polysiloxane impression material in the restoration of the post and core crown.
目的：探讨采用DMG枪式硅橡胶印模材料制取桩核根管印模的应用及护理配合体会。
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