中颌

It is the subject which gets the most concern in the fields of oral maxillofacial surgery and craniofacial surgery.

它是近年来口腔颌面外科及颅面整形外科领域中最受关注的研究课题之一。

Now the tools used for measuring dental cast which is pivotal for saving the information are rule and brass wires , the result of it is effected by manipulator , precision and efficiency are ecumenic , It is very difficult to keep the dental cast well because it is effected by temperature and humidity easily .

作为口腔正畸过程中重要信息存储源的牙颌模型，目前临床测量方式还停留在利用卡尺，铜丝等简单工具进行徒手测量分析的阶段，这样所得的结果受操作者主观影响较大，精度有限，效率较低，且由于模型易受温度，湿度等的影响，长期保存较为困难。

All patients with huge tumor most probably have deformition in faciocervical soft tissue and bone tissue, In the operation, the principles of the orthopaedics-esthetic surgery and micro-traumatic surgical therapy should be abided by, while reconstructing the contour and function of the faciocervical.

面颈部巨大的肿瘤患者大多伴有面颈部软组织及骨组织畸形，在手术中应遵循整形美容外科及微创治疗的原则，进行颌面颈部的外形及功能整形。

All the muscles rebuilt to stable structure after accomplish of distraction, which may help the post-operative stability.2. The changes of myosin heavy-chain mRNA in muscles of mastication during distraction osteogenesis of mandible in canineThe mRNA of MHCI, MHCH and GAPDH in masseter and geniohyoid were measured by RT-PCR.

试验二犬下颌骨牵张成骨过程中咀嚼肌肌球蛋白重链亚型mRNA含量的变化将所取标本应用RT－PCR对嚼肌与颌舌骨肌肌球蛋白重链的两个亚型，即MHCI与MHCll与内参照GAPDH的InRNA进行半定量检测并进行统计学分析。

Objective to study the changes of endothelin and nitric oxide in gingival tissue of periodontitic patients and their relationship with local bone absorption.

目的 为了探讨慢性牙周炎患者牙龈组织中ET和NO的改变与局部颌骨的吸收及骨质疏松的关系。

By pushing a whole series of branching points in gnathostome evolution out of the Devonian and into the Silurian, the discovery of Guiyu also signals that a significant part of early vertebrate evolution is unknown Fig.

此外，鬼鱼的背鳍棘刺和其前方具有棘刺的骨板很可能也是原始特征。上述特征在早期有颌类中广泛分布，而它们却同时出现鬼鱼身上，使得我们首次观察到了肉鳍鱼类一系列重要鉴别特征的演化顺序。

Hoxall genes from 16 vertebrates were analyzed, containing 10 cloned Hoxall genes mentioned above and 6 Hoxall genes from GenBank, Homo sapiens, Mus musculus, Bos taurus, Polyodon spathula, Heterodontus francisci, and Oryzias latipes, in representatives of the three major gnathostome lineages: cartilaginous fish, ray-finned fish and lobe-finned fish.

克隆的基因与从GenBank中获取的人、小家鼠、黄牛、匙吻白鲟、角虎鲨Hoxa11基因及青鳉Hoxa11a基因进行比较分析，这些动物代表了有颌类的三个谱系：软骨鱼类谱系、辐鳍鱼类谱系(斑马鱼、大黄鱼、花鲈、罗非鱼、红鳍东方鲀、乌鳢、青鳉和匙吻白鲟)和肉鳍鱼类谱系(矛尾鱼、热带爪蟾、绿背树蜥、家鸡、人、小家鼠和黄牛)。

Objective: To study the methodology of the surgical treatment of maxillofacial tumors which involve infratemporal fossa and the base of medius skull.

目的：探讨手术治疗侵入颞下凹或中颅底的颌面部肿瘤的相关问题。

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

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。

Results Maxillofacial fractures were detected in 26 cases.

结果 29例中26例有颌面部骨折。

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。