protraction

英

美

网络  前伸; 延长; 前突; 前凸; 前旋

医学

英英释义

noun

• the act of prolonging something
  1. there was an indefinite prolongation of the peace talks
  Synonym:prolongationperpetuationlengthening
• the consequence of being lengthened in duration
  Synonym:lengthinessprolongationcontinuation

双语例句

• Development of the loop-mediated isothermal amplification assay for Toxoplasma gondii Upper arch changes after maxillary protraction with rapid palatal expansion in skeletal Class ⅲ patients by anchoring to the primary teeth
  弓形虫环介导等温扩增快速检测方法的建立乳磨牙为支抗前牵引矫治后上牙弓变化的初步研究
• Analysis of stress on craniofacial skeleton sutures under protraction with three-dimensional finite element method skeletal traction through olecranon of ulna
  前方牵引下颅面复合体骨缝应力特征的三维有限元分析尺骨鹰嘴骨牵引；经尺骨鹰嘴骨牵引术；经尺骨鹰嘴骨牵引术
• Conclusion: The orthopedic force of simulating maxillary protraction promotes the remodeling of maxillary suture and TGF-β_1 may play an important role in the remodeling of maxilla.
  结论：模拟上颌前牵引矫形力促进了上颌骨缝的改建，TGF-β1在骨缝的改建中发挥了重要作用。
• Establishment of an experimental animal model of maxillary protraction and cephalometric analysis
  上颌前牵引动物模型建立与头影测量分析
• Results The new anchorage implants were stable almost in every protraction experimental study.
  结果在所有实验中支抗种植体稳定性良好。
• Further protraction of the discussion will not achieve anything.
  继续讨论下去并不能解决任何问题。
• In addition, the most practical representation and protraction methods will be studied.
  同时，探索出最适合箱包设计的表现与绘制方法。
• Objective: To investigate the effectiveness of the mandibular Protraction appliance in the treatment of class ⅱ malocclusion.
  目的：了解下颌前伸矫治器（MandibularProtractionAppliance，MPA）对AngleⅡ类错牙合的治疗效果。
• Sagittal airway dimensions following maxillary protraction in 30 cases
  前方牵引器治疗对上气道影响30例观察
• Objective To evaluate the treatment effect and stability of maxillary protraction and rapid palatal expansion in the permanent dentition.
  目的研究联合应用上颌前方牵引与快速扩弓对恒牙早期Ⅲ类骨性错牙合的矫治效果及稳定性。