查询词典 malocclusion

Methods Ten skeletal Class II division I malocclusion patients in permanent dentition with ANB 7.4° and overjet 8-11mm were treated by Edgewise technique with extract 4 first bicuspids, cephalometric measurements before and after treatment were done.

对10名前牙深覆盖达到8～11mm且ANB平均为7.4°伴Ⅲ°深覆牙合的恒牙期患者，采用方丝弓技术进行矫治，均拔除4个第一双尖牙，并对所有患者正畸治疗前后进行头影测量分析。

Methodsten skeletal class ii division i malocclusion patients in permanent dentition with anb 7.4° and overjet 8-11mm were treated by edgewise technique with extract 4 first bicuspids, cephalometric measurements before and after treatment were done.

对10名前牙深覆盖达到8～11mm且anb平均为7.4°伴ⅲ°深覆牙合的恒牙期患者，采用方丝弓技术进行矫治，均拔除4个第一双尖牙，并对所有患者正畸治疗前后进行头影测量分析。

We present the case of an 11y/o girl with skeletal Class II but high mandibular plane angle, severe crowding, rotated upper first molars, and Class II dental malocclusion. Four first bicuspids extraction with a fixed appliance orthodontic treatment was undertaken.

最常被用来改正上颚大臼齿的去旋转装置就是跨颚弧线(transpalatal arch， TPA)，但是由於该装置作用范围较小对於不当旋转较大的上颚大臼齿将不易置入，且会产生过大之施力与力矩。

Objective To investigate the results of early treatment of crossbite malocclusion and follow up the eruption of permanent dentition and occlusal stability.

目的：探讨早期矫治反牙合畸形并观察其恒牙列萌出及咬合稳定的关系。

Crossbite is a usual malocclusion which has a high prevalence rate , not only affect facial aesthetics but also oral function.

反牙合是一种常见的错牙合畸形，发病率较高，不仅影响患者的颜面美观还影响口颌系统的功能

ObjectiveTo investigate the results of early treatment of crossbite malocclusion and follow up the eruption of permanent dentition and occlusal stability.

目的：探讨早期矫治反(牙合畸形并观察其恒牙列萌出及咬合稳定的关系。

Methods Fifty mixed dentition subjects with crossbite malocclusion were included in the study. Either single or combined orthodontic treatments were applied. All subjects were followed up for 10 years till 18 years old on their occlusal relationship and stability.

选择替牙期反牙合患者50例，应用单一或联合方法矫治，并随访进入成年阶段，观察患者在此期间的牙齿排列及咬合关系的变化。

Unilateral posterior crossbite is one of the most frequently occurring malocclusion in the mixed and early permanent dentitions.

混合牙列和早期恒牙列期单侧后牙反牙合是临床较常见得一类错牙合，绝大多数患者约80％伴有下颌偏斜，上下中线不齐。

MethodsFifty mixed dentition subjects with crossbite malocclusion were included in the study. Either single or combined orthodontic treatments were applied. All subjects were followed up for 10 years till 18 years old on their occlusal relationship and stability.

选择替牙期反患者50例，应用单一或联合方法矫治，并随访进入成年阶段，观察患者在此期间的牙齿排列及咬合关系的变化。

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。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。