牙髓腔

Inlay-crown can be applied to the residual molar crown with deep and large pulp cavity .

嵌体冠可应用于髓腔深大的磨牙残冠修复。

Results: The first 3－D finite element model of the maxillary incisors,which including orthodontic appliances and pulp cavity,was successfully constructed.

结果：建立了首个包含髓腔和矫治器系统的左侧上颌切牙段三维有限元模型，形态逼真，精度高。

Objective The purpose of this study is to reveal the micromorphological featare and law of the pulp cavity walls of human premolars and to provide a micromorphological basis for root canal therapy and dentine sensitivity.

目的：揭示在髓腔壁的微细形态学规律，为根管治疗术以及理解牙本质过敏现象提供应用形态学基础。

Objective The purpose of this study is to reveal the micromorphological featare and law of the pulp cavity walls of human premolars and to provide a micromorphological basis for root canal therapy and dentine sensitivity.

提 要 目的：揭示在髓腔壁的微细形态学规律，为根管治疗术以及理解牙本质过敏现象提供应用形态学基础。

At last, in Ansys 9.0 software, by Boolean operation, different parts of the crown （ enamel, dentin and pulp cavity） were separated, and the 3D meshes were created respectively.

再将模型导入Geomagic7软件中进行精修和细化，形成有限元分析软件可识别的实体三维模型，最后，将牙体组织的三维实体模型在Ansys9.0软件中进行布尔运算，区分出釉质、牙本质及髓腔系统，并分别进行了网格划分。

First premolar pulp cavity wall dentinal tubule scanning electron microscop micro morphology

第一前磨牙；髓腔壁；牙本质小管；扫描电镜；微细形态学

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。