国际口腔医学杂志2025，Vol.52Issue(6)：748-754,7.DOI:10.7518/gjkq.2025086
无托槽隐形矫治上颌扩弓效率的影响因素
Factors influencing the efficiency of maxillary expansion in clear aligner orthodontic treatment
唐子尉 1晋瑜 1赖文莉1
作者信息
- 1. 口腔疾病防治全国重点实验室 国家口腔医学中心 国家口腔疾病临床医学研究中心四川大学华西口腔医院正畸科 成都 610041
- 折叠
摘要
Abstract
Objective To assess the factors influencing the efficiency of maxillary expansion during clear aligner treat-ment(CAT).Methods A total of 54 nonextraction CAT patients undergoing maxillary expansion were selected.Base-line data were collected,and crown lengths were measured via cone-beam computed tomography(CBCT).A model over-lap was used to measure the maxillary expansion efficiency and torque changes.Linear analysis was performed to identify factors influencing expansion efficiency.Results Single-factor linear analysis revealed that maxillary first-molar expan-sion efficiency was significantly influenced by age,root length,crown-root ratio,attachment design,designed and actual expansion amount,actual torque changes,and designed-actual torque changes(P<0.05).Stepwise multivariate linear ana-lysis identified the crown-root ratio,attachment design,and designed and actual expansion amount as significantly affec-ting maxillary first-molar expansion efficiency(P<0.05).Conclusion During CAT expansion treatment,to the focus should be on the patient's crown-root ratio.Bilateral attachment design and careful consideration of expansion amount limits in treatment planning are crucial to enhancing patient expansion efficiency.关键词
上颌扩弓/无托槽隐形矫治/锥形束计算机断层扫描Key words
maxillary expansion/clear aligner treatment/cone-beam computed tomography分类
口腔医学引用本文复制引用
唐子尉,晋瑜,赖文莉..无托槽隐形矫治上颌扩弓效率的影响因素[J].国际口腔医学杂志,2025,52(6):748-754,7.
