【摘要】：目的比較Damon Q自鎖和3M金屬托槽非拔牙矯治輕中度上頜擁擠軟硬組織及牙弓變化的研究。方法選擇正畸矯治患者87例,以上頜擁擠程度和采用的矯治器種類分為Ⅰ度、Ⅱ度擁擠Damon Q自鎖托槽組(41例),Ⅰ度、Ⅱ度擁擠3M金屬托槽組(46例)。測量治療前后頭顱側(cè)位片及模型,整理數(shù)據(jù)采用配對(duì)t檢驗(yàn)和成組t檢驗(yàn)分析。結(jié)果非拔牙矯治上頜Ⅰ度、Ⅱ度擁擠時(shí),兩種托槽治療后上頜牙弓寬度和牙弓長度均有增大,但2組間變化量差異無統(tǒng)計(jì)學(xué)意義。上頜Ⅱ度擁擠時(shí),比較2組軟組織測量項(xiàng)目鼻唇角、上唇傾角、上下唇傾角數(shù)值減少,且自鎖托槽組變化量大于金屬托槽組。結(jié)論非拔牙矯治上頜輕中度擁擠時(shí),隨擁擠度增大,Damon Q自鎖托槽對(duì)于軟組織上唇突度的改變較3M金屬托槽略大,在臨床應(yīng)用中要重視托槽及治療體系的選擇。
[Abstract]:Objective to compare the effects of Damon Q self-locking and 3M metal brackets on the treatment of soft and hard tissues and dental arch in mild to moderate maxillary crowding. Methods 87 cases of orthodontic orthodontics were divided into three groups: grade 鈪，

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