1) rotating/crowding relapse
牙旋转拥挤复发
2) dental crowding
牙列拥挤
1.
Methods Eighteen patients with moderate dental crowding were treated by rapid maxillary expansion and straight wire appliance.
结论快速上颌扩弓和直丝弓矫治器联合使用能使牙弓、基骨宽度快速增加,对于治疗牙列拥挤的患者是一种安全、有效的方法。
2.
Method 18 patients with moderate dental crowding were treated by rapid maxillary expansion and straight-wire appliance, the changes of width of dental arch and basal bone were measured before and after orthodontic treatment.
结论 上颌快速扩弓和直丝弓矫治器联合应用能使牙弓、基骨宽度快速增加 ,对牙列拥挤病例是一种安全、有效的治疗方法。
3.
The malocclusion resulting from the maxillary molar mesial movement often shows as maxillary dental crowding and molar distal relationship.
临床上,对于磨牙远中关系和上牙列拥挤的错牙合,我们可以通过远中移动上颌磨牙纠正磨牙关系,同时获得上牙弓内间隙,以解除牙列拥挤。
3) crowding
[英][kraud] [美][kraʊd]
牙列拥挤
1.
Objective:To explore the incisors moving modus of Angle Class I malocclusion with crowding treated by removing four first premolars .
方法:安氏I类错牙合牙列拥挤病例20例,均拔除4个第一前磨牙,采用方丝弓细丝弓技术矫治,牙性支抗(弱支抗)。
2.
AIM: To observe the effects of periodontal and orthodontic treatment on patients of periodontitis with crowding and occlusal traumatic teeth.
目的:探讨牙周炎伴牙列拥挤病人在常规牙周治疗和正畸治疗后的牙周改善情况。
3.
Objective The purpose of this study is to evaluate the changes of the maxillary arch after the non-extraction treatment in adult patients with mild crowding and provide reference for the treatment plan and the prediction of the treatment results.
结论 非拔牙矫治成人轻度牙列拥挤,可通过增加尖牙双尖牙区牙弓宽度,增加前段及全段牙弓长度,获得间隙解除拥挤,达到满意的矫治效果。
4) push molar
牙齿拥挤
5) crowding
[英][kraud] [美][kraʊd]
[医]牙列拥挤
6) severe dentition crowding
重度牙列拥挤
1.
Orthodontic treatment of severe dentition crowding by the combination of several non-extraction methods;
多种非拔牙方法联合矫治重度牙列拥挤
补充资料：旋转-旋转式扫描系统
旋转-旋转式扫描系统
影像学术语。CT设备的类型之一。扫描方式为旋转-旋转式(rotate-rotate，R/R)的CT设备。扫描时X线管和排列成扇形的探测器阵列做同步旋转，属第三代CT机，可用于全身CT检查，是70年代后期以来临床应用的主流机型之一。X线管为旋转阳极，发射大角度扇形线束，探测器多为氙气电离室或为固体探测器，阵列规模通常在数百甚至上千。扫描时间1～4秒。通常具有靶扫描、靶重建、动态扫描、三维成像等特殊程序和多种重建算法、测量分析功能。旋转-旋转式设备在扫描过程中探测器是连续工作的，利用率高，但不能同时进行校准。所获取的每一幅投影轨迹剖面图都是由整个探测器阵列同时采集的信息构成的，个别探测器出现误差便可能使反投影后的重建图像上出现环形伪影(ring artifact)。该型机不具备体积采样能力。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条