查询词典 premolars

From each side, in the upper jaw,(1) is the canine,(3) the small premolars,(1) the large premolar and (2) the smaller molars.

从两边看，在上颚处，各有（1）犬齿，（3）颗小前臼齿，（1）颗大前臼齿和（2）颗小臼齿。

Objective To study the changes in soft tissue of facial profile after orthodontic treatment with four premolars extracted in bimaxillary protrusion in adolescents.

目的 研究青少年双颌突患者拔牙矫治前后侧面部软组织的改变方法对34例青少年双颌前突患者拔牙矫治前后的18项侧面部软组织指标进行对比，通过配对t 检验来分析治疗后侧面部软组织的改变。

Methods: 20 patients with bimaxillary protrusion were treated with Tip-Edge Plus appliance. 4 premolars in all those cases were extracted.

对20例双颌前突畸形患者采用Tip-Edge Plus矫治技术治疗，所有病例均拔除4个第一双尖牙。

So that this study found the computer-aided prediction system for adolescents with four premolars extracted in bimaxillary elementarily and look forward to promote the communion between orthodontists and patients and improve the level of therapy.

因此，本研究初步建立了青少年双颌前突拔牙矫治软组织侧貌预测系统，以期能促进医患之间的交流与合作，提高临床治疗水平。

Objective To study the changes in soft tissue of facial profile after orthodontic treatment with four premolars extracted in bimaxillary protrusion in adolescents.

目的 研究青少年双颌前突患者拔牙矫治前后侧面部软组织的改变。

Objective To study the changes in maxilla,mandible and SN after orthodontic treatment with four premolars extracted in bimaxillary protrusion in adolescents and provide clinical useful data for predicting curative effect after orthodontic treatment.

目的：研究青少年双颌前突患者拔牙矫治前后上颌骨、下颌骨及前颅底的变化，为临床预测矫治后疗效提供临床依据。

The ratio of soft tissue and hard tissue retraction is different in male and female group.2 Found the computer-aided prediction system on the soft tissue profile for adolescents with four premolars extracted in bimaxillary.

软硬组织变化的比例关系在男性与女性组是不同的。2青少年双领前突拔牙矫治软组织侧貌预测系统的建立以WindowSZ000为操作平台，利用面向对象的计算机语言VISualC++ 6.0进行编程。

The convexity of facial profile decreases after orthodontic treatment for bimaxillary protrusion's adolescents with four premolars extracted, but there are differents in upper lip and lower lip in male and female.

结果 18项软组织指标中5项角度指标的改变在男性组与女性组的改变均有统计学意义， 13项线距测量指标中的上唇厚度、下唇厚度、鼻凸度均增大，而鼻底厚度在男性组与女性组改变不同。

There are no changes in development directions of maxilla,mandible and SN before and after orthodontic treatment for bimaxillary protrusion抯 adolescents with four premolars extracted,but there are different in development rate,the development of mandible is the fastest, maxilla is slower, SN is the slowest.

可以认为青少年双颌前突患者拔牙矫治前后上颌骨、下颌骨及前颅底的生长方向在治疗前后无变化，但三者的生长速度不同，下颌骨生长最快，上颌骨较慢，前颅底的生长速度最慢。

Methods:Select 11～18 year old patients with bimaxillary protrusion 20 cases were randomly divided into two groups:TPA group,TPA＋Nance arch group.Two cases are the uprooting of four first premolars,the use of straight wire appliance technology,one step closure extraction gap analysis before and after treatment lateral skull X ray film and dental cast changes in the indicators.

选取11～18 岁双颌前突患者20 例，随机分为：TPA与TPA＋Nance弓两组；两组病例均拔除4个第一前磨牙，使用直丝弓矫治技术，一步法关闭拔牙间隙，分析治疗前后X线头颅侧位片及牙颌模型的各项指标变化。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。