Sarah Joda Kathem, Rannvá Caroline Matras, Salaheddin Omar Mahmoud Abbas
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There was no anterior displacement on closure when the patient was assessed clinically. According to the cephalometric analysis, the sagittal jaw relation and Wits appraisal were reduced due to a retrognathic maxilla and prognathic mandible.</p><p><strong>Interventions: </strong>The treatment plan involved maxillary protraction, Alt-RAMEC protocol for 10 weeks and upper molar distalisation with a hybrid hyrax distalizer in combination with a mentoplate. The active treatment time was estimated to 18 months followed by 6 months retention with the appliance.</p><p><strong>Outcomes: </strong>The sagittal jaw relationship was increased by approximately 9°, mainly due to maxillary advancement of 8 mm and a positional change of the mandible anteroposteriorly. Natural decompensation of the lower incisors was also observed. In addition, both the facial profile and the smile became more harmonious after treatment. The treatment analysis revealed that the changes achieved were mainly skeletal and it was possible to avoid adverse effects on the dentition.</p><p><strong>Conclusion: </strong>In conclusion, treatment with a hybrid hyrax distalizer combined with mentoplate using the Alt-RAMEC protocol is effective in correcting the anteroposterior discrepancy in a juvenile class III patient and it is possible to achieve maxillary advancement of 8 mm.</p>","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":" ","pages":"183-191"},"PeriodicalIF":1.4000,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Class III malocclusion treated with a 3D-printed hybrid hyrax distalizer combined with mentoplate using Alt-RAMEC protocol: A case report.\",\"authors\":\"Sarah Joda Kathem, Rannvá Caroline Matras, Salaheddin Omar Mahmoud Abbas\",\"doi\":\"10.1177/14653125231184910\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Introduction: </strong>The aim of this report was to assess the skeletal, dental and soft tissue changes in a juvenile patient with a severe class III malocclusion. 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引用次数: 0
摘要
简介本报告旨在评估一名患有严重III类错牙合畸形的青少年患者的骨骼、牙齿和软组织变化。本病例报告介绍了一种采用骨骼固定上颌前突和 Alt-RAMEC 方案治疗 III 类错牙合畸形的新方法：患者在治疗前没有任何主观主诉，也没有 III 类错牙合畸形的家族史：口外检查发现，患者的面部轮廓凹陷，中面部后缩，下唇突出。口腔内部检查显示，患者为角度Ⅲ类错颌畸形，咬合过度-3毫米。临床评估时，患者在闭合时没有前牙移位。根据头颅测量分析，由于上颌后突和下颌前突，患者的颌矢状关系和Wits评估值都有所降低：治疗方案包括上颌前突矫正、为期10周的Alt-RAMEC方案，以及使用混合型hyrax远隔器和mentoplate进行上磨牙远隔。积极治疗时间预计为 18 个月，然后使用矫治器保留 6 个月：下颌矢状关系增加了约 9°，主要是由于上颌前移了 8 毫米和下颌前胸位置的改变。此外，还观察到下切牙的自然分解。此外，治疗后面部轮廓和微笑都变得更加和谐。治疗分析表明，所实现的变化主要是骨骼方面的，可以避免对牙齿造成不良影响：总之，采用 Alt-RAMEC 方案，使用混合 hyrax 远端矫治器和 mentoplate 进行治疗，能有效矫正青少年 III 类患者的前后不一致，并能使上颌前移 8 毫米。
Class III malocclusion treated with a 3D-printed hybrid hyrax distalizer combined with mentoplate using Alt-RAMEC protocol: A case report.
Introduction: The aim of this report was to assess the skeletal, dental and soft tissue changes in a juvenile patient with a severe class III malocclusion. This case report describes a novel method of class III treatment using skeletal anchorage for maxillary protraction and Alt-RAMEC protocol.
Patient concerns: The patient did not have any subjective complaints before treatment and there was no family history of class III malocclusion.
Clinical findings and primary diagnoses: Extra-orally, the patient had a concave profile with a retrusive mid-face and prominent lower lip. The intra-oral examination revealed angle class III malocclusion with a -3-mm overjet. There was no anterior displacement on closure when the patient was assessed clinically. According to the cephalometric analysis, the sagittal jaw relation and Wits appraisal were reduced due to a retrognathic maxilla and prognathic mandible.
Interventions: The treatment plan involved maxillary protraction, Alt-RAMEC protocol for 10 weeks and upper molar distalisation with a hybrid hyrax distalizer in combination with a mentoplate. The active treatment time was estimated to 18 months followed by 6 months retention with the appliance.
Outcomes: The sagittal jaw relationship was increased by approximately 9°, mainly due to maxillary advancement of 8 mm and a positional change of the mandible anteroposteriorly. Natural decompensation of the lower incisors was also observed. In addition, both the facial profile and the smile became more harmonious after treatment. The treatment analysis revealed that the changes achieved were mainly skeletal and it was possible to avoid adverse effects on the dentition.
Conclusion: In conclusion, treatment with a hybrid hyrax distalizer combined with mentoplate using the Alt-RAMEC protocol is effective in correcting the anteroposterior discrepancy in a juvenile class III patient and it is possible to achieve maxillary advancement of 8 mm.
期刊介绍：
The Journal of Orthodontics has an international circulation, publishing papers from throughout the world. The official journal of the British Orthodontic Society, it aims to publish high quality, evidence-based, clinically orientated or clinically relevant original research papers that will underpin evidence based orthodontic care. It particularly welcomes reports on prospective research into different treatment methods and techniques but also systematic reviews, meta-analyses and studies which will stimulate interest in new developments. Regular features include original papers on clinically relevant topics, clinical case reports, reviews of the orthodontic literature, editorials, book reviews, correspondence and other features of interest to the orthodontic community. The Journal is published in full colour throughout.
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