Qingchen Feng, Fulin Jiang, Huixia Wang, Gang Shen, Zhihe Zhao, Lingyong Jiang, Chen Jiang, Qi Fan, Jinyi Zhu, Peiyue Pan, Wenlong Huang, Juan Li
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Lateral cephalograms at pre-treatment (T1) and post-treatment (T2) were measured by modified Pancherz's cephalometric analysis, and dentoskeletal and soft tissue changes were analysed by independent-sample <i>t</i>-test, paired-sample <i>t</i>-test, ANOVA test and Scheffe's Post Hoc test.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>Seventy-five adolescents completed the study, including 32 in the CTB group, 32 in the TB group and 11 in the control group. Both CTB and TB treatment showed significant differences in most dentoskeletal and soft tissue measurements. Compared with the control group, improvements were observed in class II molar relationship through significant different in S Vert/Ms-S Vert/Mi in the CTB group (<i>P</i> < .01) and the TB group (<i>P</i> < .001), as well as deep overjet through significant different in S Vert/Is-S Vert/Ii in the CTB group (<i>P</i> < .001) and the TB group (<i>P</i> < .001). Besides, the CTB group also showed less protrusion of lower incisors and resulted in a more significant improvement in profile with fewer adverse effects on speaking, eating and social activities.</p>\n </section>\n \n <section>\n \n <h3> Conclusions</h3>\n \n <p>For adolescents with skeletal class II malocclusion, CTB appliance was as effective as TB on improving dentoskeletal and soft tissue measurements, featuring more reliable teeth control and patient acceptance.</p>\n </section>\n </div>","PeriodicalId":19652,"journal":{"name":"Orthodontics & Craniofacial Research","volume":"27 4","pages":"665-673"},"PeriodicalIF":2.4000,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Evaluation of modified clear Twin Block aligner in treating adolescents with skeletal class II malocclusion: A two-centre cephalometric study\",\"authors\":\"Qingchen Feng, Fulin Jiang, Huixia Wang, Gang Shen, Zhihe Zhao, Lingyong Jiang, Chen Jiang, Qi Fan, Jinyi Zhu, Peiyue Pan, Wenlong Huang, Juan Li\",\"doi\":\"10.1111/ocr.12783\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <h3> Introduction</h3>\\n \\n <p>The purpose of this study was to evaluate the therapeutic effect of modified clear Twin Block (CTB) aligner and traditional twin block (TB) appliance from skeletal, dentoalveolar and soft tissue changes in adolescents with skeletal class II malocclusion.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Methods</h3>\\n \\n <p>A total of 80 adolescents, included in this study from two medical centres, were distributed into CTB group, TB group and control group based on the treatment they received. 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引用次数: 0
摘要
简介本研究的目的是评估改良型透明双阻抗（CTB）矫治器和传统双阻抗（TB）矫治器对骨骼、牙槽和软组织变化的治疗效果：本研究共纳入来自两个医疗中心的 80 名青少年，根据他们所接受的治疗分为 CTB 组、TB 组和对照组。采用改良潘切尔兹头影分析法测量治疗前（T1）和治疗后（T2）的侧头影，并采用独立样本 t 检验、配对样本 t 检验、方差分析检验和 Scheffe 后验法分析牙骨骼和软组织的变化：75名青少年完成了研究，其中CTB组32人，TB组32人，对照组11人。CTB 和 TB 治疗在大多数牙齿骨骼和软组织测量方面均有显著差异。与对照组相比，CTB 组的 S Vert/Ms-S Vert/Mi 显著不同（P 结论：CTB 组的 S Vert/Ms-S Vert/Mi 显著低于对照组），从而改善了 II 类臼齿关系：对于患有骨骼Ⅱ类错颌畸形的青少年，CTB矫治器在改善牙齿骨骼和软组织测量方面与TB矫治器同样有效，而且牙齿控制更可靠，患者接受度更高。
Evaluation of modified clear Twin Block aligner in treating adolescents with skeletal class II malocclusion: A two-centre cephalometric study
Introduction
The purpose of this study was to evaluate the therapeutic effect of modified clear Twin Block (CTB) aligner and traditional twin block (TB) appliance from skeletal, dentoalveolar and soft tissue changes in adolescents with skeletal class II malocclusion.
Methods
A total of 80 adolescents, included in this study from two medical centres, were distributed into CTB group, TB group and control group based on the treatment they received. Lateral cephalograms at pre-treatment (T1) and post-treatment (T2) were measured by modified Pancherz's cephalometric analysis, and dentoskeletal and soft tissue changes were analysed by independent-sample t-test, paired-sample t-test, ANOVA test and Scheffe's Post Hoc test.
Results
Seventy-five adolescents completed the study, including 32 in the CTB group, 32 in the TB group and 11 in the control group. Both CTB and TB treatment showed significant differences in most dentoskeletal and soft tissue measurements. Compared with the control group, improvements were observed in class II molar relationship through significant different in S Vert/Ms-S Vert/Mi in the CTB group (P < .01) and the TB group (P < .001), as well as deep overjet through significant different in S Vert/Is-S Vert/Ii in the CTB group (P < .001) and the TB group (P < .001). Besides, the CTB group also showed less protrusion of lower incisors and resulted in a more significant improvement in profile with fewer adverse effects on speaking, eating and social activities.
Conclusions
For adolescents with skeletal class II malocclusion, CTB appliance was as effective as TB on improving dentoskeletal and soft tissue measurements, featuring more reliable teeth control and patient acceptance.
期刊介绍：
Orthodontics & Craniofacial Research - Genes, Growth and Development is published to serve its readers as an international forum for the presentation and critical discussion of issues pertinent to the advancement of the specialty of orthodontics and the evidence-based knowledge of craniofacial growth and development. This forum is based on scientifically supported information, but also includes minority and conflicting opinions.
The objective of the journal is to facilitate effective communication between the research community and practicing clinicians. Original papers of high scientific quality that report the findings of clinical trials, clinical epidemiology, and novel therapeutic or diagnostic approaches are appropriate submissions. Similarly, we welcome papers in genetics, developmental biology, syndromology, surgery, speech and hearing, and other biomedical disciplines related to clinical orthodontics and normal and abnormal craniofacial growth and development. In addition to original and basic research, the journal publishes concise reviews, case reports of substantial value, invited essays, letters, and announcements.
The journal is published quarterly. The review of submitted papers will be coordinated by the editor and members of the editorial board. It is policy to review manuscripts within 3 to 4 weeks of receipt and to publish within 3 to 6 months of acceptance.
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