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首页> 外文期刊>American Journal of Orthodontics and Dentofacial Orthopedics >Patient with oligodontia treated with a miniscrew for unilateral mesial movement of the maxillary molars and alignment of an impacted third molar
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Patient with oligodontia treated with a miniscrew for unilateral mesial movement of the maxillary molars and alignment of an impacted third molar

机译：用微螺钉治疗无牙合的患者，以进行上颌磨牙的单侧内向运动和受影响的第三磨牙的对准

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摘要

This report describes the treatment of a 20-year-old woman with a dental midline deviation and 7 congenitally missing premolars. She had retained a maxillary right deciduous canine and 4 deciduous second molars, and she had an impacted maxillary right third molar. The maxillary right deciduous second molar was extracted, and the space was nearly closed by mesial movement of the maxillary right molars using an edgewise appliance and a miniscrew for absolute anchorage. The miniscrew was removed, and the extraction space of the maxillary right deciduous canine was closed, correcting the dental midline deviation. After the mesial movement of the maxillary right molars, the impacted right third molar was aligned. To prevent root resorption, the retained left deciduous second molars were not aligned by the edgewise appliance. The occlusal contact area and the maximum occlusal force increased over the 2 years of retention. The miniscrew was useful for absolute anchorage for unilateral mesial movement of the maxillary molars and for the creation of eruption space and alignment of the impacted third molar in a patient with oligodontia.
机译：该报告描述了一名20岁女性的牙齿中线偏移和7例先天性缺失的前磨牙的治疗方法。她保留了上颌右乳牙和4个落叶第二磨牙，并且上颌右乳牙受到了影响。拔出上颌右乳牙第二磨牙，并使用侧向矫正器和微型螺钉绝对固定，通过上颌右磨牙的近中运动将空间几乎封闭。取下小螺钉，并关闭上颌右乳牙犬的拔牙空间，以矫正牙齿中线偏差。上颌右磨牙近中移动后，将受影响的右第三磨牙对齐。为了防止根吸收，保留的左侧落叶第二磨牙未通过边缘矫正器对齐。在保留的2年中，牙合接触面积和最大牙合力增加。微型螺钉可用于绝对固定，用于上颌磨牙的单侧内向运动，以及在少尿症患者中产生喷发空间和受影响的第三磨牙的对准。

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