残根太短，一般无法利用桩冠修复。
Its unable to repair dowel crown because of its shorter root of tooth.
以评价它们对桩冠固位力的影响。
The force needed to disledgethe post was tested, and the effects of these cements evaluated.
探讨玻璃纤维桩在桩冠修复中的应用及护理配合。
Objective: to probe into application and nursing coordination of glass fiber stake in repair of post crown for patients.
本组89例病人中仅2例病人出现桩冠脱落现象。
Results: Only two cases among all 89 patients occurred falling off post crown.
目的研究根管印模的不同方法对桩冠固位力的影响。
Objective To study the effect of the various methods of root canal impression on the fixing power of post crown.
目的：分析桩冠修复后对根管壁牙本质应力分布的影响。
Objective: To evaluate the effect of the stress distribution of dentine under post crown prosthesis.
前牙残根残冠的保存和修复在临床上多见，治疗一般采用桩冠修复。
The remaining of the residual roots and crowns in anterior teeth need to be treated with post and core.
结论四种核桩冠修复方法为我们提供了前牙残冠残根修复的更多选择。
Conclusion the four methods could all provide more choice for anterior post-core crown prosthesis.
目的观察并比较成品金属螺纹桩和铸造金属桩在桩冠修复中的临床效果。
Objective to study the effect of using screw mental post and cast post in post crown restoring respectively and bring into com parison.
摘要：目的比较牙冠延长术与牙龈切除术用于残根残冠桩冠修复中的疗效。
Abstract: Objective to compare the restorative effects of crown lengthening surgery and gingivectomy on dowel crown of deep-seated subgingival teeth fracture.
结论：桩冠修复方法可行，是一种简易、快速、经济、有效的保存患牙方法。
CONCLUSION: The method is easy, feasible, quick, economic and effective in preserving bad tooth.
研究桩冠修复中不同桩核材料对箍效应的应力分布影响，探讨箍效应的生物力学机制。
To investigate the effect of various post and core materials on stress distribution of ferrule effect in post crown, and to evaluate the biomechanics mechanism of ferrule effect in post crown.
方法：对27例行牙冠延长术的患者进行常规的前牙美容修复，其中16例采用单纯桩冠修复，11例采用综合法进行美容修复。
Methods Among 27 cases who perform cosmetic prosthesis for anterior tooth after crown lengthening, there are 16 cases with post crown, 11 cases with comprehensive prosthesis.
结论用铸造法制作桩冠桩核强度高，与根管壁密合，粘固手不易脱落与原烤瓷牙冠密合，不需要重新制作，节约了时间和费用，延长了烤瓷冠的使用寿命。
Conclusion This method could obtain the strength of crown dowel with root cavity without fall and cleft so that to save time and payment and prolong the use of ceramic teeth.
结论用铸造法制作桩冠桩核强度高，与根管壁密合，粘固手不易脱落与原烤瓷牙冠密合，不需要重新制作，节约了时间和费用，延长了烤瓷冠的使用寿命。
Conclusion This method could obtain the strength of crown dowel with root cavity without fall and cleft so that to save time and payment and prolong the use of ceramic teeth.
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