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    2. The 9-12 years old is the best period for the Distal jet treatment. During this period, the Class II malocclusion treatment will benefit from the upper and lower jaws fast grow
    2、矫治年龄一般选择9一12岁,在此阶段生长发育旺盛,有利于H类错殆的矫治。
    50(25 male, 25 female, with average age of 12.37) were Class II malocclusion;
    从中挑选面侧貌协调美观的样本为最终正常牙合组的研究对象,共50例,男女各半,平均年龄12.28岁。
    Results: 1. Compared with the normal occlusion group, All measurement except 3 soft tissue variables and 2 hard tissue variables was statistically significant with t-test in the Class II malocclusion group (p<0.05).
    结果:1.正常牙合组与Ⅱ类错牙合组的成组资料t检验分析中,除3项软组织测量值和2项硬组织测量值外,其余软硬组织测量值均有显著性差异(p<0.05)。
    Objective: The purpose of this investigation was to study the morphology and lip-teeth relationship in Angle’s Class II malocclusion by cephalometrics, and to discuss the meaning of the functional state which was reflected by lip-teeth relationship.
    目的:通过X线头影测量对安氏Ⅱ类1分类与2分类错的形态结构特征以及唇齿关系特点进行研究,探讨唇齿关系形态特征所反映的功能活动状态在错发生、发展过程中的意义。
    Objective: To analyse the effects of the treatment of Class II malocclusion by extraoral force.
    目的 :探讨口外弓推磨牙向后治疗安氏 II类 1分类错牙合的机制。
    Objective:To study the possibility of treatment on class II malocclusion of mandibular retraction during growth with a new detachable headgear-activator.
    目的 :探讨一种新型可拆式头帽 -肌激动器治疗生长发育期II类下颌后缩错的可行性。
    Method: The masticatory efficiency of 20 class II malocclusion children and 20 normal occlusion children were measured by the spec-trophotometry method. All subject s deepbite, overjet, unrupted permanent tooth and the EMG of masticatory muscle were recorded and then the data was analyzed sttatistically.
    方法:采用分光比色法对20例替牙期安氏二类一分类患者和20例替牙期正常(牙合)儿童进行了咀嚼效能测定,并测量了受试者的覆(牙合),覆盖,未萌恒牙数目及嚼肌肌电值,利用t检验和逐步回归进行分析。
    Result: The class II malocclusion group had a significantly lower masticatory efficiency index than the normal group.
    结果:替牙期安氏二类一分类患者咀嚼效能较正常(牙合)者低,其差异具显著性。
    Conclusion: The class II malocclusion division 1 can handicapped the normal masticatory efficiency, and early treatment is benefit for the improvement of patient' s masticatory function.
    结论:安氏二类一分类错(牙合)阻碍了替牙期儿童的正常咀嚼效能的发挥,及早治疗有利于改善咀嚼功能。
    And the soft/hard tissue ratio is from 1.07∶1 to 1.34∶1.Conclusion:The combined orthodontic and surgical treatment is an efficient way to cure skeletal class II malocclusion.
    但软组织颏前点、颏唇沟、下唇缘点、下唇上点向上移动量均大于 2mm(P <0 0 5 ) ,与相应的硬组织移动量之比为 1 0 7∶1~ 1 34∶1。
    Methods:Thirty children with class II malocclusion underwent the treatment of combined bionator (treatment group), and 30 children with class II malocclusion was not subjected the treatment and served as control group.
    方法 :本文随机选择 3 0例安氏Ⅱ类错牙合儿童 ,3 0例健康儿童作为对照组 ,分别拍摄X线头颅侧位片 ,并进行治疗前后的电子计算机 -头影测量研究。
    Results Activator and Headgear-Activator were effective on the correction of Class II malocclusion,but the mechanisms were different.
    结果两种治疗方法均能有效纠正II类错牙合,但作用机制不同。
    Conclusion Both appliances were effective on the correction of skeletal Class II malocclusion of growing patients.
    结论Activator和Headgear-Activator能有效调节上下颌骨发育的不协调,纠正儿童骨性II类错牙合。
    Objective To evaluate the treatment effect of skeletal class II malocclusion with HGAC.
    目的探讨高位头帽式肌激动器(HGAC)矫正骨性安氏II类错牙合的作用机理和疗效。
    Conclutions HGAC was effective in the correction of skeletal class II malocclusion.
    结论HGAC对骨性安氏II类错牙合矫治的疗效确切,尤其适用于上牙槽发育过度以及高角型病例。
    METHODS: Twelve patients with Class II malocclusion were selected and treated with improved Herbst appliance,. The effects were observed and assessed after 6 to 8 months.
    方法:12例II类错牙合患者,采用变异Herbst矫治器,经6~8个月的矫治,观察、评估该方法的矫治效果。
    Methods: 7 cases of OSAS, aged 8.6~13.2 years, with sk e letal Angle II malocclusion were treated with Twin-block fuctional appliance fo r 13 months on an average.
    方法 :应用Twin block功能矫形器治疗 7例具有骨性AngleⅡ类错 牙合特征的阻塞性睡眠呼吸暂停综合征少年患者。
    Conclusion:It is feasi-ble and effective to use implant as anchorage in correction of Angle`s II malocclusion.
    结论:对AngleII类牙畸形的矫正使用种植体作为支抗是有效的、可行的。
    Methods 21 patients with Angle Class II malocclusion were corrected using arch in nonnasality of torquing auxilliaries combining class II elastic and NiTi coil-spring in distal movement of the maxillary molars. X-ray pictures of cephalogram and dental pictures were taken before and after treatment.
    方法21例安氏Ⅱ类错牙合病例采用口内弓设置NiTi簧,辅以反向控根辅弓及Ⅱ类牵引推磨牙往远中,治疗前后均摄X线头颅侧位片及治疗前后口内外X线片。
    PURPOSE: To investigate the dentofacial morphological changes and the indication of Twin-block appliance for treatment of skeletal Class II malocclusion.
    目的:分析Twin-block矫治器治疗早期骨性II类错牙合的牙颌形态变化,并探讨其适应证。
 

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