Empower矫治器在双牙弓前突错畸形矫治中的应用效果

发布时间：2018-10-05 20:56

【摘要】：目的观察Empower双核自锁托槽矫治器在错畸形拔牙矫治中的应用效果,并与传统结扎式MBT直丝弓矫治器进行比较。方法双牙弓前突错畸形患者40例,随机分为观察组与对照组各20例。观察组采用Empower双核自锁托槽矫治器矫治,不采用支抗增强措施;对照组用MBT矫治器矫治,采取口外弓支抗增强措施。治疗前后拍摄X线头颅定位侧位片,定点、测量口腔颌面部牙性指标∠UI-SN、∠UI-PP、∠L1-MP、∠U1-L1、UIA-PTV、UIE-PTV、LIE-PTV、LIA-PTV、UM-PTV、LM-PTV,骨性指标∠SNA、∠SNB、∠ANB、∠MP-FH及软组织指标UL-EP、LL-EP、Z角。结果治疗结束后两组患者上下牙列排列整齐,覆覆盖正常,磨牙、尖牙关系中性,后牙尖窝咬关系良好,软组织侧貌改善显著。观察组平均疗程23个月,对照组平均疗程26个月。两组治疗前后骨性指标∠SNA、∠SNB、∠ANB、∠MP-FH差异无统计学意义;牙性指标∠UI-SN、∠UI-PP、∠L1-MP、∠U1-L1、UIA-PTV、UIE-PTV、LIE-PTV、LIA-PTV、UM-PTV、LM-PTV及软组织指标UL-EP、LL-EP、Z角治疗后得到改善,与治疗前相比,P均0.05。两组治疗后各项指标差异无统计学意义。结论采用Empower双核自锁托槽矫治器对双牙弓前突错畸形进行矫正,可获得较好的支抗控制及前牙转矩控制,上下前牙内收明显,软组织侧貌改善明显。
[Abstract]:Objective to observe the effect of Empower binuclear self-locking bracket appliance in the treatment of malocclusion and to compare it with the traditional MBT straight-wire appliance. Methods 40 cases of double arch anterior malformation were randomly divided into two groups: the observation group (n = 20) and the control group (n = 20). The observation group was treated with Empower binuclear self-locking bracket appliance without Anchorage enhancement, while the control group was treated with MBT appliance and external arch Anchorage. Before and after treatment, lateral radiographs were taken to locate the head, and to measure the dentistry indexes of oral and maxillofacial region, including UI-SN, UI-PP, L1-MP1, UIA-PTV1, LIE-PTV, LIA-PTV, MP-FH, and UL-EP,LL-EP,Z angle of soft tissue. Results after the treatment, the upper and lower dentition of the two groups were arranged neatly, the overlay was normal, the molar and canine were neutral, the posterior cusp bite was good, and the soft tissue profile was improved significantly. The average course of treatment was 23 months in the observation group and 26 months in the control group. There was no significant difference between the two groups before and after treatment in terms of bone SNA, SNB, and ANB, MP-FH, and the dental indexes, including UI-SN, UI-PP, UIA-PTV1, UIE-PTV, LIE-PTV, UM-PTV, LM-PTVV, and soft tissue index UL-EP,LL-EP,Z angle, were improved after treatment, compared with those before treatment (P < 0.05). There was no statistical difference between the two groups after treatment. Conclusion the Empower binuclear self-locking bracket appliance can be used to correct the malformation of anterior arch protrusion. Better Anchorage control and torque control of anterior teeth can be obtained with obvious adduction of upper and lower anterior teeth and obvious improvement of soft tissue profile.
【作者单位】：天津市第五中心医院;天津医科大学口腔医院;
【分类号】：R783.5

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