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临界病例
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  borderline cases
    Cephalometric comparison of hard-tissue morphology between extraction and non-extraction orthodontic treatment in borderline cases
    临界病例拔牙与不拔牙矫治对牙颌面硬组织结构的影响
短句来源
    Cephalometric comparison of soft-tissue morphology between extraction and nonextraction orthodontic treatment in borderline cases
    临界病例拔牙与不拔牙矫治对颅颌面软组织形态的影响
短句来源
    Changes of Profile Prominence in Borderline Cases with Extraction and Non-extraction Orthodontic Treatment
    临界病例拔牙与非拔牙治疗后侧貌突度变化的研究
短句来源
    Custome orthodontic design for extraction or non-extraction borderline cases
    正畸拔牙临界病例的个性化设计
短句来源
    Objective:To compare hard tissue morphology by cephalometric measurements between extraction and non extraction orthodontic treatment in borderline cases.
    目的 :比较拔牙或不拔牙矫治对临界病例牙颌面硬组织结构变化的影响。
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  “临界病例”译为未确定词的双语例句
    The borderline cɑses judged by the cliniciɑns were in 25.5% of the sɑmple one ɑnd in 35.6% of the sɑmple two.
    在以上两组中 ,正畸专家们挑出的临界病例的比例分别占 2 5 .5 %和 35 .6 %。
短句来源
    Results:No statistical difference wasfound in pretreatment soft-tissue morphology between extraction and non-extraction groups divided fromborderline cases.
    用头影测量学上常用的15项软组织测量项目进行分析比较 结果:临界病例拔牙组与临界病例不拔牙组在治疗前的软组织侧貌没有一项具有统计学意义的差别;
短句来源
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  borderline cases
In borderline cases poison, consulting centers should be consulted since they have good experience and provide extensive data banks.
      
Elderly patients with known episodes of atrial arrhythmia and indication to pacemaker therapy are borderline cases relative to selection of ventricular single-chamber or dual-chamber pacemaker.
      
Our aim in this analysis was to create a conceptual aid for clinicians for use in dealing with and understanding the problems of borderline cases in general, and in making it easier to make medical and orthodontic treatment decisions.
      
Stress testing can be useful in timing surgical intervention in borderline cases.
      
In clinical practice, an imprecision introduced by ad hoc selected heart rate correction formula of the QTinterval is unlikely to lead to erroneous conclusions if all borderline cases are carefully considered.
      
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Objective To investigɑte the correspondence ɑmong orthodontists on the clinicɑl judgements ɑbout extrɑction or non-extrɑction treɑtment.Method Fifty-five cɑses treɑted ɑt our depɑrtment were used ɑs sɑmple one to check the correspondence ɑmong 5 experienced cliniciɑns.Eɑch of the cliniciɑn wɑs ɑsk to judge extrɑction,non-extrɑction or borderline ɑs the treɑtment plɑn ɑfter checking the pre-treɑtment models,x-rɑys ɑnd photos for every sɑmple cɑse.The sɑme experiment wɑs done on ɑ second sɑmple of 90 cɑses.Results...

Objective To investigɑte the correspondence ɑmong orthodontists on the clinicɑl judgements ɑbout extrɑction or non-extrɑction treɑtment.Method Fifty-five cɑses treɑted ɑt our depɑrtment were used ɑs sɑmple one to check the correspondence ɑmong 5 experienced cliniciɑns.Eɑch of the cliniciɑn wɑs ɑsk to judge extrɑction,non-extrɑction or borderline ɑs the treɑtment plɑn ɑfter checking the pre-treɑtment models,x-rɑys ɑnd photos for every sɑmple cɑse.The sɑme experiment wɑs done on ɑ second sɑmple of 90 cɑses.Results Complete ɑgreements ɑmong 5 cliniciɑns were found only in 30.9% of the cɑses.But if we tɑke ɑt leɑst 3-cliniciɑn ɑgreements ɑs criterion,the correspondence will reɑch 96.3%.In the second sɑmple,the complete ɑgreement were found in 21.1% of the cɑses,but 3-cliniciɑn ɑgreements cɑn reɑch 80%.The borderline cɑses judged by the cliniciɑns were in 25.5% of the sɑmple one ɑnd in 35.6% of the sɑmple two.Combining two sɑmples,the percentɑges of extrɑction cɑses judged by eɑch cliniciɑn ɑre 57%,56%,46%,41%ɑnd 32%.Conclusion Although orthodontists cɑn reɑch ɑgreement on the most cɑses with regɑrd to whether extrɑction or non-extrɑction,there ɑre still fɑirly high percentɑge of cɑses found to be borderline.And cliniciɑns differ in their propensity to extrɑct teeth or not.

目的 调查正畸医师临床判断拔牙或不拔牙治疗设计的一致性。方法 本研究选用了在北大口腔正畸科完成正畸治疗的样本一 (5 5名患者 )和未完成治疗的样本二 (90名患者 )的治疗前诊断资料 ,请本科室 5位副高职称的正畸专科医师根据患者的牙模型、X线片及面颌像进行拔牙、不拔牙或临界这 3种情况的临床判断 ,并进行描述性统计分析。结果 如果以 5人完全一致的判断为标准 ,样本一中的符合率只有 30 .9%,但如果以 3人以上判断一致为标准 ,则符合率可以高达 96 .3%。样本二中 ,5人完全一致的判断符合率只有 2 1.1%,而 3人以上一致的判断符合率为 80 %。在以上两组中 ,正畸专家们挑出的临界病例的比例分别占 2 5 .5 %和 35 .6 %。合并两样本统计 5位医师判断拔牙的比率 ,分别为 5 7%、5 6 %、46 %、41%和 32 %。结论 虽然正畸专家们对拔牙还是不拔牙的选择在大多数情况下可以取得共识 ,但仍有相当比例的错畸形可能处于拔牙或不拔牙两可的临界状态。而不同正畸医师对拔牙与否的倾向性具有明显的个体差异。

Objective:To compare hard tissue morphology by cephalometric measurements between extraction and non extraction orthodontic treatment in borderline cases. Methods: The samples consisted of 33 cases selected as borderline cases by 5 orthodontic specialists. They were divided into 21 extraction cases (including 13 four first premolar extraction cases and 8 second premolar extraction cases) and 12 nonextraction cases by checking patients’ treatment records. Conventional cephalometric analysis was made to compare...

Objective:To compare hard tissue morphology by cephalometric measurements between extraction and non extraction orthodontic treatment in borderline cases. Methods: The samples consisted of 33 cases selected as borderline cases by 5 orthodontic specialists. They were divided into 21 extraction cases (including 13 four first premolar extraction cases and 8 second premolar extraction cases) and 12 nonextraction cases by checking patients’ treatment records. Conventional cephalometric analysis was made to compare hard tissue structures before and after orthodontic treatment and the same comparison was made between two different extraction patterns. Results: No statistical difference was found on pretreatment hard tissue morphology between extraction and non extraction groups divided from borderline cases. The SNB angle of the four first premolars extraction group was smaller than that of the four second premolars extraction group by (4.0±1.3)°( P <0.01). The statistical significant differences of the post treatment hard tissue cephalometry between extraction and nonextraction and between two different extraction patterns were found to be limited to the items related to the tooth position. Conclusion: Conventional cephalometric analysis cannot differentiate extraction or non extraction treatment selection from borderline cases. The differences between extraction and non extraction orthodontic treatments were limited to tooth positions but had no skeletal relation. Extraction of the four second premolars could prevent upper incisors from uprighting as it often follows the four first premolar extraction treatment. Extraction of the four first premolars could change the incisor position much more than extraction of the four second premolars. The changes of four second premolar extraction treatment were much similar to non extraction treatment.

目的 :比较拔牙或不拔牙矫治对临界病例牙颌面硬组织结构变化的影响。方法 :以 5位正畸专家临床判断出的 33个临界病例为样本 ,在头颅定位侧位片上测量上述病例治疗前后牙颌面硬组织的变化 ,再根据这 33名患者实际接受的拔牙还是不拔牙、以及拔第一双尖牙还是拔第二双尖牙治疗进行分组。 33例中有 1 2例采用了不拔牙治疗 ,1 3例采用了拔 4个第一双尖牙治疗 ,8例采用了拔 4个第二双尖牙治疗。用头影测量学上常用的 2 0项硬组织测量项目进行分析比较。结果 :临界病例拔牙组与临界病例不拔牙组在治疗前的牙颌面硬组织结构没有统计学意义的差别 ;拔第一双尖牙组的前颅底平面 -下牙槽座点角 (SNB角 )比拔第二双尖牙组的SNB角小 (4 .0±1 .3)°(P <0 .0 1 ) ;治疗后拔牙组与不拔牙组以及拔第一双尖牙组与拔第二双尖牙组之间的差别主要为牙位改变。结论 :临界病例很难通过常规头影测量来区分是否需要拔牙治疗 ;这两种治疗方案的差别主要表现为前牙矢状方向突度及倾斜度的变化 ,而颌骨位置关系及垂直方向上下颌、牙合、颅底平面角没有显著性差别 ;与拔第...

目的 :比较拔牙或不拔牙矫治对临界病例牙颌面硬组织结构变化的影响。方法 :以 5位正畸专家临床判断出的 33个临界病例为样本 ,在头颅定位侧位片上测量上述病例治疗前后牙颌面硬组织的变化 ,再根据这 33名患者实际接受的拔牙还是不拔牙、以及拔第一双尖牙还是拔第二双尖牙治疗进行分组。 33例中有 1 2例采用了不拔牙治疗 ,1 3例采用了拔 4个第一双尖牙治疗 ,8例采用了拔 4个第二双尖牙治疗。用头影测量学上常用的 2 0项硬组织测量项目进行分析比较。结果 :临界病例拔牙组与临界病例不拔牙组在治疗前的牙颌面硬组织结构没有统计学意义的差别 ;拔第一双尖牙组的前颅底平面 -下牙槽座点角 (SNB角 )比拔第二双尖牙组的SNB角小 (4 .0±1 .3)°(P <0 .0 1 ) ;治疗后拔牙组与不拔牙组以及拔第一双尖牙组与拔第二双尖牙组之间的差别主要为牙位改变。结论 :临界病例很难通过常规头影测量来区分是否需要拔牙治疗 ;这两种治疗方案的差别主要表现为前牙矢状方向突度及倾斜度的变化 ,而颌骨位置关系及垂直方向上下颌、牙合、颅底平面角没有显著性差别 ;与拔第一双尖牙相比 ,拔第二双尖牙可以较好的保持上切牙的唇倾度不减小 ,且拔第二双尖牙对牙颌面结构的影响效果与不拔牙治疗相近 ,但拔第一双尖牙可以明显减小上下?

Objective\ The purpose of this study was to make a comparison between extraction and non_extraction orthodontic treatment results concerning teeth alignment, occlusal relation, facial profile and treatment interval.Methods\ 39 extraction_non_extraction borderline cases were selected by 5 orthodontic specialists through reviewing their pre_treatment records. 5 specialists were then asked to rank the results by marking the post_treatment record of each case. And then the samples were divided into different groups...

Objective\ The purpose of this study was to make a comparison between extraction and non_extraction orthodontic treatment results concerning teeth alignment, occlusal relation, facial profile and treatment interval.Methods\ 39 extraction_non_extraction borderline cases were selected by 5 orthodontic specialists through reviewing their pre_treatment records. 5 specialists were then asked to rank the results by marking the post_treatment record of each case. And then the samples were divided into different groups according to extraction, non_extraction and extraction pattern by reviewing case history.Results\ No statistically significant difference was found in teeth alignment, overbite and overjet, midline symmetry, lateral occlusal relation and treatment intervals. However, the post_treatment facial profile of extraction groups obtained higher marks from 5 specialists (P=0.001).Conclusion\ While both extraction and non_extraction treatment can achieve comparable results in teeth alignment and occlusal relation with equivalent time interval in borderline cases, extraction treatment, whatever extraction of four first premolars or second premolars is performed, can achieve better facial profile.\;

目的 比较患者拔牙与不拔牙正畸治疗在牙齿排列、咬合关系、面形和疗程方面的差异。方法  5位正畸专家根据治疗前资料挑选出的既可采用拔牙 ,又可采用不拔牙治疗的 39例错畸形患者为研究对象。评价患者的治疗效果 ,再根据患者实际是否采用拔牙治疗进行分组比较。结果 拔牙组与不拔牙组患者 ,在牙齿排列、覆覆盖、中线、侧方咬合关系方面的评分及平均疗程上均无显著性差异 (P >0 0 5 ) ;只有侧貌美观的评分 ,拔牙组高于不拔牙组 ,两组间有显著性差异 (P =0 0 0 1 )。结论 对于临界病例 ,拔牙与不拔牙治疗在牙齿排列、咬合关系方面都能在基本相同的治疗时间取得类似的疗效 ;但拔牙患者 ,无论是拔第一前磨牙还是拔第二前磨牙 ,都比不拔牙患者获得了更加令人满意的面形

 
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