牙

OBJECTIVE: The molar tooth germ of 12 weeks abortion human embryo was transplanted and cultured under kidney capsule to see the dentiparous level and establish the culture mode of the human tooth germ regeneration.

目的：将流产人胚胎12周的磨牙牙胚植入到裸鼠肾囊膜下培养，观察其成牙情况，建立人牙胚再生的培养模式。

Methods Ten volunteers with experimental premature contact at the first premolar, the first molar and the second molar were asked to clench in CO and their electromyographic activity of the masseters, anterior temporalis and anterior belly of digastric muscles were measured simultaneously.

测定 10名志愿者在正中牙合；左右两侧下颌第一双尖牙、第一磨牙、第二磨牙实验性早接触状态下，嚼肌、颞肌前束及二腹肌前腹肌电活动的积分值与频谱值。

The interdental distance between the mesial groove of the first molars and distal groove of the second molars was measured on the maxillary dental casts. The interdental distances at the end of experimental tooth movement and retention were calculated. The effectuality of retentive appliances was evaluated by comparing the tooth movement distances between the experimental side and control side.

在加力结束后和保持结束后即刻制取上颌石膏模型，测量所有模型的第一磨牙牙合面近中沟与第二磨牙牙合面远中沟的距离，计算加力结束后与保持结束后的距离，比较实验侧与对照侧的牙齿移动距离，评价保持装置的有效性。

Aims: To establish a model of rat endotoxic pulpitis.

目的：建立大鼠实验性牙髓炎模型；原位观察大鼠正常牙髓和炎症牙髓中Bcl-2和Bax的表达情况，探讨两者在牙髓炎病理变化中的作用。

To see if it is a tusk, teeth kids just want to smoke when uncomfortable epiglottic milk and, if so give him points molar things, such as molar biscuits or fruit to give him bite削成Rodlike

看看是不是要长牙了，孩子牙刚要冒出时因不舒服会厌奶，如果是的话给他点磨牙的东西，如磨牙饼干，或把水果削成棒状给他咬

To further prove the function of TGF-βWe added the exogenetic TGF-βto observe its effect on the regulation of proliferation, diffrentiation and apotosis of the human pulp cell induced by LPS.

提示LPS对人牙髓细胞损伤是通过抑制牙髓细胞增殖、介导其凋亡、造成其坏死等多种途径实现的，牙髓细胞凋亡可能是细菌感染造成牙髓组织损伤的重要形式。

Flowable resin composites is ideal material in restorations of posterior teeth diseases.

在后牙牙合面修复夹层技术中应用流动性复合树脂，能显著提高后牙复合树脂修复的成功率，是后牙修复洞衬的理想材料。

Non-occluding teeth with a hypofunctional periodontium have a lower rate of bone remodeling, and are more susceptible to the injury in periodontal tissues caused by orthodontic force than normally occluding teeth, such as hyalinization or undermining bone resorption, even dentin resorption.

正畸治疗中，无咬合接触的牙周膜废用性萎缩牙较正常咬合接触牙对矫治力反应差，骨改建率低，易发生玻璃样变和潜掘性骨吸收，延缓牙移动，因此对无咬合接触牙的临床治疗中应采用轻力。

Judging from the improved degrees of occlusion relationship,it seems that the improvement of anterior segment is better than that of posterior segment;the improvement of intraarch relationship is better than that of interarch: the improvement of buccal relationship is better than that of lingual.

合关系的改善程度，是前牙优于后牙；牙合内优于牙合间，颊侧优于舌侧。

This simplified method combined with crown lengthening procedure and occlusal rehabilitation, the problems of insufficient interarch space and gummy smile were resolved without neither orthodontic treatment nor alteration of the occlusal vertical dimension.

本病例报告为一女性患者因长期局部缺牙，因而丧失赝复空间，在不改变其咬合垂直高度为前提下，施行上颚半口及下颚后牙之牙冠增长术，并提高其咬合平面，最后上颚以固定式局部义齿、下颚以固定式义齿合并植牙来赝复，赝复空间不足的问题已解决，病人微笑时过多牙龈暴露的情形也获得改善。

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。