磨牙

Results:In normal occlusion,the size of cuspid and bicuspid group was correlated with that of mandibular incisor group in accord with the principle of Moyers prediction.

结果：正常的尖牙、双尖牙组与下切牙组高度相关，符合Moyers预测机理，但错的尖牙、双尖牙组一般与同牙列的切牙加第一磨牙组高度正相关。

Methods 20 human biscuspids scheduled to be extracted for the orthodontic reasons were prepared for porcelain fused to matal crown,of which every 2 teeth were from the same patient and the same jaw. The teeth were randomly, blindly and selfcontrolly divided into 2 groups.In the control group:the temporary crowns were cemented with zinc oxide cement.In the testing group:Green Or was applied before the temporary crowns were cemented with zinc oxide cement.

要领 选择因正畸治疗必要而打算撤废的20颗前磨牙举办金属烤瓷全冠牙体准备，其中每2颗牙均为同颌同名牙；授与随机、双盲、自身比较计划分为2组：比较组在牙准备体上直接用氧化锌丁喷香酚水门汀粘固且则冠；不雅察看组在牙准备体上涂布极固宁TM后用氧化锌丁喷香酚水门汀粘固且则冠。

Methods 20 human biscuspids scheduled to be extracted for the orthodontic reasons were prepared for porcelain fused to matal crown,of which every 2 teeth were from the same patient and the same jaw. The teeth were randomly, blindly and self controlly divided into 2 groups.In the control group:the temporary crowns were cemented with zinc oxide cement.In the testing group:Green Or was applied before the temporary crowns were cemented with zinc oxide cement.

选择因正畸治疗需要而计划拔除的20颗前磨牙进行金属烤瓷全冠牙体预备，其中每2颗牙均为同颌同名牙；采用随机、双盲、自身对照设计分为2组：对照组在牙预备体上直接用氧化锌丁香酚水门汀粘固暂时冠；观察组在牙预备体上涂布极固宁TM后用氧化锌丁香酚水门汀粘固暂时冠。

Birth, the permanent teeth in the deciduous tooth germ had been under, with the exception of the first molar (ie, age 6 teeth) in the neonatal period has begun to calcification, the calcification of permanent teeth is carried out in infancy, Therefore, the infant not only to protect the deciduous teeth, but also in order to obtain a fit and lay the foundation for permanent teeth.

婴儿出生时，恒牙的牙胚就已在乳牙之下，除第一磨牙（即6龄牙）在新生儿时期已开始钙化外，一部分恒牙的钙化是在婴儿期进行的，因此，婴儿期不仅要保护好乳牙，还要为获得一副健美的恒牙奠定基础。

Results: Among the 47 cases, 33 cases were teeth pulpless tissue including 14 endodentically treated teeth and 14 cases were vital teeth with periodontitis, cracked tooth and occlusal traumatism.

结果：牙冠纵折多见后牙，以上颌第一磨牙为多见，其中无髓牙33例，牙折裂前有近一半曾作过根管治疗，活髓牙14例，存在不同程度的牙隐裂，牙周炎和咬合创伤。

Results Compared with T1, statistically significant increases were recorded in all dentoalveolar and dental arch widths, except for the intermolar width measured fossa, and also arch perimeter at T2 (P＜0.05). No significant changes were found in the arch depth.

结果 与T1阶段相比，T2阶段除了磨牙中央窝点间牙弓宽度测量项目外，所有牙槽弓、牙弓宽度测量值以及牙弓周长测量值均显著增大（P＜0.05），但牙弓长度的变化无统计学意义。

RESULTS AND CONCLUSION: The course of treatment was 10.4 months, and the velocity of mandibular second molar mesializing was 0.8 mm per month, with 8.5 mm in mesiodistal direction, there was no changes in the vertical direction.

结果与结论：疗程10.4个月，下颌第二磨牙平均移动速度为0.8 mm/月；平均近中移动8.5 mm，垂直向没有变化；磨牙长轴向远中倾斜角度为2.5°，下颌中切牙位置无改变。

Chondrocytes isolated from the same calf suspended in 30% pluronic were then"painted"onto the articular surface of the scaffold and implanted into subcutaneous pockets on the dorsa of athymic mice.

实验三，在犬双侧下颌第三、四前磨牙和第一磨牙颊侧制备根向深5mm的颊侧骨上袋型牙槽骨缺损动物模型。

Record the bruxism episodes per hour of the patients before and 2 weeks after wearing the splints by the polysomnography.

方法使用多导睡眠监测技术记录磨牙症患者戴用牙合垫前及2周后的磨牙事件，并进行比较。

The real cause for the second molars malocclusion is the crowding and it happens in the posterior region of dentitions.

从本质上讲，第二磨牙错牙合是拥挤的表现，主要在磨牙区。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。