中颌

Results Of the 50 cases of jaw bone cystoid disease,there were 6 of jaw bone cyst,15 of radicular cyst,7 of dentigerous teeth cyst,4 of keratocyst,7 of nasopalatine cyst,3 of ball maxillas cyst,5 of ameloblastoma and 3 of craniofacial fibrous dysplasia.

结果 50例颌骨囊性病变中有孤立性颌骨囊肿6例，根端囊肿15例，含牙囊肿7例，角化囊肿4例，鼻腭囊肿7例，球上颌囊肿3例，造釉细胞瘤5例，骨纤维异常增殖症3例。

Interfixational with miniature steel plate is a good method in treating median and inferior condylicus fracture, It is stable and practicable. It can avoid intermaxillary elastic traction or reduce traction time, it is good for joint function and structure to recover.

微型接骨板内固定是治疗髁状突中低位骨折的良好方法，固定稳定可靠，可免除颌间牵引或缩短颌间牵引的时间，有利于关节结构和功能的恢复。

BACKGROUND: Intermaxillary asymmetrical traction, a method routinely used in orthodontics to correct mandibular position and to adjust occluding relation, is conventionally employed as compensation treatment for adult jaw deformity.

背景：颌间不对称牵引是正畸中调整下颌位置和咬合关系的常规手段，常用于成人偏颌畸形的代偿性矫治。

Landmarks of Cephalogram is the important basis to diagnose and treat patients with facial skeletal and dental abnormalities.

头影图像的标志点是正颌外科中用来诊断和治疗牙颌面畸形患者的重要依据，本文运用图像处理及人工智能技术，介绍了一种自动提取头影图像中软硬组织标志点的方法。

Three-dimensional CT images were obtained from circumgyration and incision at will.

电子束CT在颌面部骨折的诊治中有很大的应用价值，二维CT和三维CT互相补充是诊断颌面部骨折的最佳方法。

The results are as follows:(1) With the imposing of orthopedic force of simulating maxillary protraction on maxilla, in the sagittal direction, the maxillary complex of the SD Rats in experimental group grows more quickly than that in two control groups, and the extent of the maxillary complex increases more evidently. The maxillary complex displays anti-clockwise forward and upward rotation.(2) With the imposing of orthopedic force on maxilla, upper incisors exhibit labial-inclined, labioclination of lower incisors changes insignificantly, and the shape and the dimension of skull are not affected significantly.(3) The expression of TGF-3 , in frontomaxillary sutures and palatomaxillary sutures shows different intensity in different extent of time. But The expression of TGF-{3, in experimental group is more intensive than that in two control groups, and that in operated control group and natural growth group has no significant difference.

结果如下：在模拟上颌前牵引矫形力作用下，(1)生长发育期大鼠上颌复合体在矢状方向生长加快，长度明显增加，并表现出向前向上的逆时针旋转；(2)上切牙唇倾，下切牙的唇倾度没有明显变化，颅脑的形态与大小不受影响；(3)额颌缝和腭颌缝中TGF-β_1的表达，同一时段实验加力组要强于手术对照组与自然生长组，而手术对照组与自然生长组之间无显著性差异。

In this research, the pubertal five-week-old SD rats were chose as experimental object to establish the animal model for simulating maxillary protraction, on which was imposed the orthopedic force of 85g with utilizing the self-devised maxillary protraction appliance. Located lateral X-ray cephalograms were taken to measure and analyze the changes of maxillary development after exerting the orthopedic force for 4 weeks. The technique of immunohistochemistry was used to investigate theexpression of TGF-, in frontomaxillary sutures and palatomaxillary sutures with identical force performing for different extent of time. The average hue was selected as indicator, which was measured by the means of the analysis system of pathological color images. The measuring data were analyzed by the one-way ANOVA in software SPSS 11.0 version.

本研究采用自行设计的上颌前牵引装置，以生长发育期5周龄SD大鼠为实验对象，施加85g的矫形力，建立了模拟上颌前牵引的动物模型，通过X线头影测量分析，观察施力4周后上颌骨的生长发育情况；应用免疫组织化学技术，检测同一力值作用不同时段下TGF-β_1在上颌骨的额颌缝、腭颌缝的表达，彩色病理图象分析系统测定每张切片中阳性染色细胞的平均灰度值，结果采用SPSS 11.0进行方差分析。

A tooth is a significant organ for manducation and phonation; inferior alveolar nerve is one of the most important sensory nerves in maxillofacial region

牙齿作为重要的咀嚼、发音器官，下牙槽神经作为口腔颌面部重要的感觉神经之一，在颌面部创伤救治过程中均不可忽视。

Methods 35 cases with cyst of jaw were selected and followed up for 3 years after marsupialization was performed.

方法临床中选取35例颌骨囊肿病人，行囊肿开窗减压术后随访3 目的评价开窗减压术对颌骨囊肿的治疗效果。

Objective To value the effect of marsupialization in treating cyst of jaw.Methods 35 cases with cyst of jaw were selected and followed up for 3 years after marsupialization was performed.

目的 评价开窗减压术对颌骨囊肿的治疗效果方法临床中选取35例颌骨囊肿病人，行囊肿开窗减压术后随访3年。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。