Methodsseventy-nine patients(38 adults, 41 adolescents) with maxillary protrusion treated with extraction by straight wire appliances were selected.
方法:选择运用直丝弓矫治技术矫治完成的上颌前突并拔牙矫治患者79例,其中成人患者38例,青少年患者41例。
参考来源 - 成人与青少年在内收上前牙的正畸治疗中牙根吸收的比较研究—《中国美容医学》—2010年第7期—龙源期刊网·2,447,543篇论文数据，部分数据来源于NoteExpress
One New Caledonian crow, called Betty, bent some straight wire into a hook and used it to lift a small bucket of her favourite food from a vertical pipe.
一只名叫贝蒂的新喀里多尼亚乌鸦把一根笔直的铁丝咬成一个弯钩，用它把一小桶她最喜欢吃的食物从一根垂直的管子里吊了出来。
They were all treated with straight wire appliance and helical spring to expand clearance.
均采用直丝弓矫治器矫治，应用螺旋推簧扩展间隙及上颌前方牵引。
Objective: to provide the basic data for the straight wire appliance which is suitable to Chinese.
目的：为适用于中国人的直丝弓矫治器提供基础数据。
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