磨牙

Objectives:To investigate the morphological characteristics of mandibular first premolars in people Pearl River Delta region in Guangdong .

目的：通过显微镜下观察和外形测量了解363颗广东珠三角地区人下颌第一前磨牙外形解剖特征。

Through a complete orthodontic treatment plan, the upper first premolars in both the right and the left sides had to be extracted for all of the patients.

通过一个完整的正畸治疗计划，在上第一前磨牙的权利和左右两侧都必须提取所有的病人。

Total of 363 extracted mandibular first premolars were collected and numbered.

筛选出广东珠三角人离体下颌第一前磨牙363颗。

AIM:To enhance the dentists to realize the presence of two root canals in the mandibular first premolars.

目的 ：提高临床医生对下颌第一前磨牙存在双根管的认识。

METHODS: Human premolars were collected and embedded in paraffin and cut into slices.

收集人前磨牙，石蜡包埋切片，作免疫组织化学和图象定量分析。

OBJECTIVE: To evaluate the fatigue resistance of lower premolars restored with quartz-fiber post-core and full crown.

目的：评价石英纤维桩复合树脂核全冠修复的下颌前磨牙的疲劳抗性。

Use of the pedicled buccal fat pad is a safe and easy method to reconstruct defects of the retromolar tissue.

用带蒂颊脂垫修复磨牙后区组织缺损是一种安全、简便的方法。

Methods select the molars that need root canal re-treatment after pulp mummification, under the microscope in the dental surgery, treatment with ultrasound equipment, and record the change of patients?symptoms, the effect of filling in the course of treatment.

选取临床上干髓术后需要根管再治疗的磨牙，在牙科手术显微镜下，配合超声器械进行治疗，并记录治疗过程中患者症状改变及充填效果。

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。

Base on what is mentioned above, the paper recommend the load angle range of Forsus and scope of condylar reconstruction.

在此基础上给出了Forsus加载角度推荐范围、髁突生长改建范围和第一磨牙远中平移效果的方法。

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。