Nonextraction treatment with en-masse maxillary dentition distalization using miniscrews: stability after ten years of retention

IF 0.3 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Clinical and Investigative Orthodontics Pub Date : 2023-11-08 DOI:10.1080/27705781.2023.2265260
Daiki Irie, Toshihito Oyanagi, Mau Ito-Okubo, Atsushi Mayama, Arata Ito, Masahiro Seiryu, Itaru Mizoguchi
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Abstract

ABSTRACTPurpose Long-term post-treatment stability should be a crucial objective of orthodontic treatment. This article reports the treatment of an adult Class II patient using orthodontic miniscrews as anchorage for maxillary dentition distalization. The main purpose of this report was to examine whether long-term retention was effective for maintaining the obtained optimal occlusion.Materials and methods The patient was a 26.5-year-old female diagnosed with skeletal Class I jaw relationship, low angle, Class II molar relationship, maxillary and mandibular anterior crowding, and excessive overjet. To correct the crowding and molar relationship, the maxillary lateral dentition was moved distally using miniscrews. After active treatment, wrap-around retainers were provided to be worn for 10 years.Results A normal overjet and overbite, Class I molar relationship, and rigid intercuspation were achieved after active treatment. From pre-treatment to post-treatment, the right and left maxillary molars moved distally with slight intrusion and buccal movement. At the 10-year retention, the maxillary and mandibular molars remained almost unchanged. The maxillary intercanine and maxillary and mandibular intermolar widths increased during active treatment, and remained almost unchanged after active treatment.Conclusion An optimal occlusion and harmonious facial profile were obtained and maintained for an extended period using maxillary dentition distalization with miniscrews as anchorage.KEYWORDS: Miniscrewdistalizationretentionrelapse3D analysis Disclosure statementNo potential conflict of interest was reported by the author(s).Ethical approvalThe patient consented in writing to publication of the case.Author contributionsDaiki Irie contributed to the treatment of the patient, data acquisition, analysis, and interpretation, and drafted the manuscript; Toshihito Oyanagi, Mau Ito-Okubo, Atsushi Mayama and Arata Ito contributed to the treatment of the patient and data analysis; Masahiro Seiryu and Itaru Mizoguchi contributed to data interpretation, and drafting the manuscript. All authors gave their final approval and agree to be accountable for all aspects of the work.Additional informationFundingThere are no financial disclosures or commercial interests from any authors.
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非拔牙治疗使用微型支架进行上颌牙列整体远端:保留十年后的稳定性
【摘要】目的治疗后的长期稳定性是正畸治疗的重要目标。本文报道了一名成人II类患者使用正畸微钉作为上颌牙列远端支抗的治疗。本报告的主要目的是研究长期固位对于维持所获得的最佳咬合是否有效。材料与方法患者为女性,年龄26.5岁,诊断为骨骼I类颌关系,低角度,II类磨牙关系,上颌和下颌前侧拥挤,过度重叠。为了纠正拥挤和磨牙关系,上颌侧牙列使用微型螺钉向远端移动。积极治疗后,提供缠绕式固位器,使用10年。结果积极治疗后,两牙体覆盖牙合正常,磨牙关系ⅰ级,牙间嵌固良好。治疗前后左右上颌磨牙均向远端移动,有轻微的侵入和颊部运动。保留10年时,上颌磨牙和下颌磨牙基本保持不变。积极治疗时上颌犬齿间和上颌下颌磨牙间宽度增加,积极治疗后基本保持不变。结论上颌牙列远端加微钉支抗可获得良好的咬合效果和和谐的面部轮廓,并可长期维持。关键词:微缩、保留、复发、三维分析披露声明作者未报告潜在的利益冲突。伦理上的批准病人以书面形式同意发表这个病例。作者贡献saiki Irie参与了患者的治疗、数据采集、分析和解释,并起草了稿件;Toshihito Oyanagi, Mau Ito- okubo, Atsushi Mayama和Arata Ito对患者的治疗和数据分析做出了贡献;Masahiro Seiryu和Itaru Mizoguchi对数据解释和起草手稿做出了贡献。所有作者都给予了最终的批准,并同意对工作的各个方面负责。其他信息资金没有财务披露或任何作者的商业利益。
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