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首页> 外文期刊>Journal of Clinical and Diagnostic Research >Effectiveness of Mini Implants in Three-Dimensional Control during Retraction - A Clinical Study
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Effectiveness of Mini Implants in Three-Dimensional Control during Retraction - A Clinical Study

机译：微型植入物在牵开期间三维控制中的有效性-临床研究

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Introduction: Three-dimensional control throughout the orthodontic treatment is essential for uncompromised results. Mini screws introduced for orthodontic anchorage has given the clinician an option of absolute three dimensional control. The purpose of this study was to compare and measure the vertical control and torque control of incisors and molar during enmass retraction with titanium microimplants and conventional molar anchorage.Material and Methods: Twenty patients were selected with extraction of all first premolars and bonded with 0.022? slot MBT system. After aligning and leveling, all subjects were placed with 0.019? X 0.025? posted SS wire with standardized torquing curve. The 20 subjects were randomly divided into 2 groups consisting of 10 each (Group A & Group B). Group A subjects, implants were placed and Group B formed the control group. Retraction was carried out using NiTi closed coil springs. The assessment of the vertical and torque control of incisors and tipping and vertical control of molars was done by radiographic method using lateral cephalogram taken before and after retraction.Results: The torque control of incisors, P11 value in group A and B indicated no significant difference. The molar tip, P12 value in group A indicated that there was distal tipping of molars while the P12 in group B indicated mesial tipping. On vertical plane P21, P22 and P23 values in Group A indicated that there was intrusion of incisors and molars while value in Group B indicated extrusion of incisors and molars.Conclusion: Three dimensional control is better in the implant group compared to the non implant group. Therefore the implant group definitely has citied advantages over conventional method.
机译：简介：在整个正畸治疗过程中，三维控制对于确保完美的结果至关重要。引入的用于正畸锚固的微型螺钉为临床医生提供了绝对三维控制的选择。本研究的目的是比较和测量钛微型植入物和常规磨牙锚固术在牙本质回缩过程中切牙和磨牙的垂直控制和扭矩控制。材料与方法：选择20例患者，全部拔除所有第一前磨牙并结合0.022？插槽MBT系统。对齐和找平后，所有受试者都放置0.019？ X 0.025？带标准扭力曲线的不锈钢丝。将20名受试者随机分为2组，每组10人（A组和B组）。 A组受试者，放置植入物，B组形成对照组。使用NiTi封闭式螺旋弹簧进行缩回。牵张前后前后侧位头侧位片通过放射线照相法对切牙的垂直和扭矩控制以及磨牙的倾角和垂直控制进行评估。结果：A组和B组的切牙的扭矩控制，P11值均无显着性差异。磨牙尖端，A组中的P12值表明有磨牙的远端倾斜，而B组中的P12中的是尖端的倾斜。在垂直平面P21，P22和P23上，A组的值表明有切牙和磨牙的侵入，而B组的值表明有切牙和磨牙的挤出。结论：与非植入物组相比，植入物组的三维控制效果更好。因此，植入物组绝对具有优于传统方法的优势。

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