冠

Objective To evaluate the clinical effect of post and crown technique practice in big dentin defect.

目的 观察桩核加烤瓷冠技术在牙体大面积缺损修复中的临床疗效。

objective to evaluate the clinical effect of post and crown technique practice for big dentin defect.

目的：观察桩核加烤瓷冠技术在牙体大面积缺损修复中的临床应用疗效。

The clinical practice of post and crown technique in big den

桩核加烤瓷冠技术在牙体大面积缺损修复中的临床应用是成熟成功的，挽救了许多以前要拔除的牙体大面积缺损的患牙，临床应用很有价值。

Objective:To observe the clinical results of the post surgical crown lengthening for different cases of teeth with subgingival destruction.

目的：观察牙体缺损不同部位牙冠延长术后的疗效。

clinical practice of post and crown technique in big dentin defect is mature and succ

桩核加烤瓷冠技术在牙体大面积缺损修复中的临床应用是成熟成功的，挽救了许多以前要拔除的牙体大面积缺损的患牙，临床应用很有价值。

The clinical practice of post and crown technique in big dentin defect is mature and successful, save many big dentin defects which are extracted before, it is valuable in clinic.

桩核加烤瓷冠技术在牙体大面积缺损修复中的临床应用是成熟成功的，挽救了许多以前要拔除的牙体大面积缺损的患牙，临床应用很有价值。

the clinical practice of post and crown technique in big dentin defect is mature and successful, has saved many big dentin defects which are extracted before, it is valuable in clinic.

桩核加烤瓷冠技术在牙体大面积缺损修复中的临床应用是成熟成功的，挽救了许多以前要拔除的牙体大面积缺损的患牙，临床应用很有价值。

clinical practice of post and crown technique in big dentin defect is mature and successful, save many big dentin defects are extracted before, it is valuable in clinic.

桩核加烤瓷冠技术在牙体大面积缺损修复中的临床应用是成熟成功的，挽救了许多以前要拔除的牙体大面积缺损的患牙，临床应用很有价值。

Objective To study the effect of using screw m ental post and cast post in post crown restoring respectively and bring into com parison.

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。

For the roots that had bad shape and structure, good restoration effect could be achieved by using some proper material to repair the canal first and then restored with post crown.

利用适当的材料对形态或结构不良的根管进行重塑后再行桩冠修复可获得良好的修复效果。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。