發(fā)布時間：2018-09-05 18:12

【摘要】：目的:探討控根輔弓對直絲弓矯治器患者的上頜切牙轉(zhuǎn)矩效果。方法:選擇22例安氏Ⅱ1拔牙矯治的患者,采用直絲弓矯治器矯治,在精細調(diào)整階段配合控根輔弓對過度直立或內(nèi)傾的上頜切牙進行正轉(zhuǎn)矩。按主弓絲不同分為2組,14例主弓絲為0.46 mm×0.64 mm的不銹鋼方絲,8例主弓絲為0.46 mm的不銹鋼圓絲。對22例上頜切牙轉(zhuǎn)矩前后的X線頭影測量結(jié)果采用t檢驗進行統(tǒng)計分析。結(jié)果:22例上頜切牙轉(zhuǎn)矩后的X線頭影測量結(jié)果顯示,1-SN、UIa-NA值增加(P0.01),控根輔弓對上切牙的正轉(zhuǎn)矩效果明顯;轉(zhuǎn)矩的時間,主弓絲為圓絲上頜切牙轉(zhuǎn)矩快于主弓絲為方絲,P0.05。結(jié)論:在直絲弓矯治的精細調(diào)整階段,配合前牙控根輔弓,是對內(nèi)收后過度直立或舌傾的上頜切牙實現(xiàn)轉(zhuǎn)矩的簡單、有效的方法。
[Abstract]:Objective: to investigate the effect of root control auxiliary arch on maxillary incisor torque in patients with straight wire appliance. Methods: a total of 22 patients were treated with straight wire appliance. The maxillary incisors with excessive upright or introverted maxillary incisors were subjected to positive torque at the stage of fine adjustment with root control auxiliary arch. According to the main arch wire, 14 cases of stainless steel square wire with 0.46 mm 脳 0.64 mm of main arch wire were divided into two groups. Eight cases of stainless steel round wire with 0.46 mm main arch wire were divided into two groups. Twenty-two cases of maxillary incisor torque before and after X-ray cephalometric results were statistically analyzed by t test. Results the X-ray cephalometric measurements of 22 maxillary incisors showed that the value of UIa-NA was increased (P0.01), and the positive torque of the upper incisors was significantly improved by the root control and auxiliary arch, and the torque of the maxillary incisors was faster than the square wire (P0.05). Conclusion: it is a simple and effective method to realize the torque of maxillary incisors with the aid of root control of anterior teeth in the fine adjustment stage of straight-wire orthodontics.
【作者單位】： 常州市口腔醫(yī)院正畸科;連云港市第一人民醫(yī)院口腔科;南京軍區(qū)南京總醫(yī)院口腔科;南京醫(yī)科大學(xué)口腔醫(yī)學(xué)研究所;南京醫(yī)科大學(xué)附屬口腔醫(yī)院正畸科;
【基金】：江蘇省高校優(yōu)勢學(xué)科建設(shè)工程資助(編號:2014-37)
【分類號】：R783.5

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