牙

Results: Relative diagnostic accordance rate of the clinical exploration and four kinds of image processing setup was the highest（P＞0.01）in the first premolars. Relative diagnostic accordance rate of the clinical exploration and the pseudocolor image setup and negative image setup was the highest（P＞0.01）, and that of the clinical exploration and the pseudo3D image setup and positive image setup was the lowest（P＜ 0.01）, showing statistical differences in the second premolars.

结果：①第一前磨牙：4种图像处理格局下邻面龋的检出结果与临床诊断结果的符合率高，差异无统计学意义（P＞0.01）；②第二前磨牙：负片和伪彩图像格局下邻面龋的检出结果与临床诊断结果的符合率高，差异无统计学意义（P＞0.01）；③正片和伪3D图像格局检出结果和临床诊断结果的符合率低（P＜0.01）。

The method replaces saltpetre Zun and combination of helix mildew element to use local treatment chronic periodontosis patient 30 (30 teeth), differ with same patient quadrantal additional 30 teeth apply the Zun that replace saltpetre to regard as alone contrast group, observation uses medical from beginning to end two groups each change of clinical index.

方法替硝唑和螺旋霉素联合应用局部治疗慢性牙周炎患者30例(30牙)，并以同一患者不同象限的另30牙单独应用替硝唑作为对照组，观察两组用药前后各临床指标的变化。

AIM: To establish the animal model of reparative dentinogenesis and investigate the histo-morphological feature of reparative dentinogenesis.

目的：建立修复性牙本质形成的动物实验模型，观察修复性牙本质形成的组织形态学特征。

Result:Reparative dentin under the biomembrane in opened area was observed in the tested teeth.

结果：4 个术后不同时期的牙在穿髓孔处均有不同程度的修复性牙本质形成。

Objective To investigate the treatment effects of hyperbaric oxygen in replantation of young permanent teeth.

目的 探讨年轻恒牙脱位再植后，高压氧(hyperbaric oxygen，HBO)治疗对牙髓牙周损伤修复的作用。

Step 11. Leave the tops of roundhead wood screws exposed. They are used for attaching thin wood pieces or metal to thicker pieces of wood.

还有这种，靠近尖头部分是细牙，靠近头部的是粗牙，这个我也不知道是用在哪里的。

The sample comprised 25 patients with the first premolar removed during orthodontic treatment. Digital models and lateral cephalometric records were taken pre- and post- treatment. We chose two kinds of regional superimposition methods on the digital models (One was the mesial zone of the third primary ruga and regional palatal vault, the other was the palate) and Baumrind's best-fit for cephalometric superimposition. The amounts of incisor and molar movement were measured and a comparative study was performed.

三。选择25例拔除上颌第一双尖牙正畸患者治疗前、后的上颌模型进行三维重建，分别使用第三腭皱近心端局部腭穹隆和腭部对同一患者治疗前、后的数字化模型进行局域重叠，以治疗前后头颅侧位片的 best-fit重叠为评价标准，比较三种方法之间的差异，对应用三维数字化牙颌模型纵向重叠评价正畸治疗前、后的牙齿移动进行探索性研究。

Scaling operation in modern times, with the exception of used equipment can also use ultrasonic scaler, a short operative time and higher efficiency.

近代洁牙术，除用器械外，还可用超声波洁牙机，手术时间短，效率高。

Scaling is a highly specialized technical work in the hospital medical staff in the oral apparatus with manual scaling, take three hours or so, is to use ultrasonic scaler scaling, they will take an hour or so.

缩放是一个高度专业化的技术在医院工作的手动缩放口腔器械医疗人员，需时三小时左右，是利用超声波洁牙机洗牙，他们将需要一个小时左右。

Founded in the December,2006, Including dental Supersonic Scaler, dental X-Ray and the others Dental equipment.

创联世纪科技发展有限公司是一家从事牙科仪器周边元器件的专业供应商，成立于2006年12月，现有超声波洁牙机、高频X光牙片机等口腔设备散件。

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。