Daniel Lo-Cao, Nikolaos Pandis, M Ali Darendeliler, Alexandra K Papadopoulou
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Treatment outcomes were compared between groups using median regression modeling.</p><p><strong>Results: </strong>Molar intrusion and incisor extrusion (millimeters), as well as buccolingual inclination changes (°), were not expressed as prescribed in the ClinChecks for Invisalign. Both treatment modalities resulted in similar improvement of anterior open bite; however, via different mechanics. Compared with CAT, SIS demonstrated significantly greater intrusion of the maxillary first molars when measured from the mesiobuccal (16: 2.09 mm [95% confidence interval {CI}, 1.05-3.12]; 26: 2.98 mm [95% CI, 2.00-3.96]) and palatal cusps (16: 2.08 mm [95% CI, 1.15-3.01], 26: 2.83 mm [95% CI, 1.92-3.74]) and less extrusion of the maxillary incisors (12: -1.30 mm [95% CI, -2.13 to -0.47], 11: -1.30 mm [95% CI, -2.40 to -0.20], 21: -0.92 mm [95% CI, -1.73 to -0.12], 22: -0.85 mm [95% CI, -1.71 to -0.00]). There was weak evidence of association with less extrusion of the mandibular incisors using SIS. Maxillary and mandibular incisors tipped lingually in both groups with no statistical difference across groups.</p><p><strong>Conclusions: </strong>SIS demonstrated greater maxillary molar intrusion, whereas CAT was associated with incisor extrusion.</p>","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":" ","pages":""},"PeriodicalIF":2.7000,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A 3-dimensional comparative assessment of the dentoskeletal effects of clear aligners vs temporary skeletal anchorage device-assisted posterior intrusion in adolescents with anterior open bite: A single-center, retrospective, cohort study.\",\"authors\":\"Daniel Lo-Cao, Nikolaos Pandis, M Ali Darendeliler, Alexandra K Papadopoulou\",\"doi\":\"10.1016/j.ajodo.2024.10.017\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Introduction: </strong>The dentoskeletal effects of clear aligner treatment (CAT) with Invisalign vs temporary skeletal anchorage device-anchored Sydney intrusion spring (SIS) were compared in consecutively treated growing patients with anterior open bite using cone-beam computed tomography scans.</p><p><strong>Methods: </strong>Fifteen adolescents treated exclusively with Invisalign, and 14 with SIS (first-phase treatment) were assessed retrospectively. Rigid-wise, voxel-based registration of pretreatment and posttreatment cone-beam computed tomography scans were performed using the anterior cranial base, maxillary plane, and mandibular body as reference regions. Treatment outcomes were compared between groups using median regression modeling.</p><p><strong>Results: </strong>Molar intrusion and incisor extrusion (millimeters), as well as buccolingual inclination changes (°), were not expressed as prescribed in the ClinChecks for Invisalign. Both treatment modalities resulted in similar improvement of anterior open bite; however, via different mechanics. 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引用次数: 0
摘要
简介：在连续治疗的生长中的前牙开咬患者中，使用锥形束计算机断层扫描比较了使用Invisalign的透明矫正器治疗（CAT）与使用临时骨锚定装置锚定的悉尼侵入弹簧（SIS）的牙骨骼效果。方法：回顾性分析15例单纯使用Invisalign治疗的青少年和14例使用SIS（一期治疗）的青少年。采用前颅底、上颌平面和下颌骨体作为参考区域，对预处理和后处理锥形束计算机断层扫描进行刚体、体素配准。采用中位数回归模型比较两组治疗结果。结果：磨牙侵入和切牙挤压（毫米）以及颊舌倾斜变化（°）未按ClinChecks for Invisalign的规定表达。两种治疗方式对前牙开咬的改善效果相似；然而，通过不同的机制。与CAT相比，从中颊部测量时，SIS显示上颌第一磨牙的侵入性明显更大(16:2.09 mm[95%可信区间{CI}， 1.05-3.12]；26.98 mm [95% CI, 2.00-3.96])和腭尖（16.08 mm [95% CI, 1.15-3.01], 26.83 mm [95% CI, 1.92-3.74]）和上颌门牙较少挤压（12.1 -1.30 mm [95% CI, -2.13至-0.47],11.1 -1.30 mm [95% CI, -2.40至-0.20],21.2:-0.92 mm [95% CI, -1.73至-0.12],22.0:-0.85 mm [95% CI, -1.71至-0.00]）。有微弱的证据表明使用SIS与下颌门牙较少挤压有关。两组上、下颌切牙舌尖，组间差异无统计学意义。结论：SIS表现出更大的上颌磨牙侵入，而CAT则与门牙挤压有关。
A 3-dimensional comparative assessment of the dentoskeletal effects of clear aligners vs temporary skeletal anchorage device-assisted posterior intrusion in adolescents with anterior open bite: A single-center, retrospective, cohort study.
Introduction: The dentoskeletal effects of clear aligner treatment (CAT) with Invisalign vs temporary skeletal anchorage device-anchored Sydney intrusion spring (SIS) were compared in consecutively treated growing patients with anterior open bite using cone-beam computed tomography scans.
Methods: Fifteen adolescents treated exclusively with Invisalign, and 14 with SIS (first-phase treatment) were assessed retrospectively. Rigid-wise, voxel-based registration of pretreatment and posttreatment cone-beam computed tomography scans were performed using the anterior cranial base, maxillary plane, and mandibular body as reference regions. Treatment outcomes were compared between groups using median regression modeling.
Results: Molar intrusion and incisor extrusion (millimeters), as well as buccolingual inclination changes (°), were not expressed as prescribed in the ClinChecks for Invisalign. Both treatment modalities resulted in similar improvement of anterior open bite; however, via different mechanics. Compared with CAT, SIS demonstrated significantly greater intrusion of the maxillary first molars when measured from the mesiobuccal (16: 2.09 mm [95% confidence interval {CI}, 1.05-3.12]; 26: 2.98 mm [95% CI, 2.00-3.96]) and palatal cusps (16: 2.08 mm [95% CI, 1.15-3.01], 26: 2.83 mm [95% CI, 1.92-3.74]) and less extrusion of the maxillary incisors (12: -1.30 mm [95% CI, -2.13 to -0.47], 11: -1.30 mm [95% CI, -2.40 to -0.20], 21: -0.92 mm [95% CI, -1.73 to -0.12], 22: -0.85 mm [95% CI, -1.71 to -0.00]). There was weak evidence of association with less extrusion of the mandibular incisors using SIS. Maxillary and mandibular incisors tipped lingually in both groups with no statistical difference across groups.
Conclusions: SIS demonstrated greater maxillary molar intrusion, whereas CAT was associated with incisor extrusion.
期刊介绍：
Published for more than 100 years, the American Journal of Orthodontics and Dentofacial Orthopedics remains the leading orthodontic resource. It is the official publication of the American Association of Orthodontists, its constituent societies, the American Board of Orthodontics, and the College of Diplomates of the American Board of Orthodontics. Each month its readers have access to original peer-reviewed articles that examine all phases of orthodontic treatment. Illustrated throughout, the publication includes tables, color photographs, and statistical data. Coverage includes successful diagnostic procedures, imaging techniques, bracket and archwire materials, extraction and impaction concerns, orthognathic surgery, TMJ disorders, removable appliances, and adult therapy.
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