Assessment of labially impacted canines traction mode with clear aligners vs. fixed appliance: A comparative study based on 3D finite element analysis

作者全名："Xia, Qian; He, Yao; Jia, Lurong; Wang, Chunjuan; Wang, Weixu; Wang, Chao; Song, Jinlin; Fan, Yubo"

作者地址："[Xia, Qian; He, Yao; Jia, Lurong; Wang, Chunjuan; Wang, Weixu; Wang, Chao; Song, Jinlin] Chongqing Med Univ, Stomatol Hosp, Chongqing, Peoples R China; [Xia, Qian; He, Yao; Jia, Lurong; Wang, Chunjuan; Wang, Weixu; Song, Jinlin] Chongqing Key Lab Oral Dis & Biomed Sci, Chongqing, Peoples R China; [Xia, Qian; He, Yao; Jia, Lurong; Wang, Chunjuan; Wang, Weixu; Song, Jinlin] Chongqing Municipal Key Lab Oral Biomed Engn Highe, Chongqing, Peoples R China; [Wang, Chao; Fan, Yubo] Beihang Univ, Beijing Adv Innovat Ctr Biomed Engn, Sch Biol Sci & Med Engn, Sch Engn Med,Key Lab Biomech & Mechanobiol,Minist, Beijing, Peoples R China"

通信作者："Wang, C; Song, JL (通讯作者)，Chongqing Med Univ, Stomatol Hosp, Chongqing, Peoples R China.; Song, JL (通讯作者)，Chongqing Key Lab Oral Dis & Biomed Sci, Chongqing, Peoples R China.; Song, JL (通讯作者)，Chongqing Municipal Key Lab Oral Biomed Engn Highe, Chongqing, Peoples R China.; Wang, C (通讯作者)，Beihang Univ, Beijing Adv Innovat Ctr Biomed Engn, Sch Biol Sci & Med Engn, Sch Engn Med,Key Lab Biomech & Mechanobiol,Minist, Beijing, Peoples R China."

来源：FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY

ESI学科分类：Multidisciplinary

WOS号：WOS:000874405800001

JCR分区：Q1

影响因子：5.7

年份：2022

卷号：10

期号：　

开始页：　

结束页：　

文献类型：Article

关键词：labially impacted canine; finite element analysis; 3D printed; biomechanics; clear aligner

摘要："Purpose: The objective of this study was to evaluate and compare the biomechanical differences between clear aligner and fixed appliance in the traction of labially impacted canines based on 3D finite element analysis. Methods: A series of patient-oriented finite element models were constructed, including a maxillary dentition with a right labially canine, maxilla, periodontal ligaments, traction attachments, and clear aligners. The two most common clinical scenarios were investigated: Scenario A: impacted canine (distal) and Scenario B: impacted canine (mesial). For each clinical scenario, three traction models with clear aligners and one fixed appliance model were established. Results: In all four models, the impacted canines exhibited similar initial displacement tendencies of mesially rotated in Scenario A and distally rotated in Scenario B, and with small differences in periodontal ligament stress magnitude. However, the sum of the periodontal ligament stresses of the anchorage teeth in the clear aligner mode was in the range of 56.28-76.21 kPa and in the fixed appliance mode was in the range of 6.61-7.22 kPa. The maximum value of initial displacement of the anchorage teeth in the clear aligner mode was in the range of 13.71-19.72 mu m, while in the fixed appliance mode was 3.10-3.92 mu m. Conclusion: For impacted canines, clear aligner mode and fixed appliance mode have little difference in biomechanical effect. However, the anchorage teeth in the clear aligner mode endure higher stress and show a more pronounced displacement tendency. In addition, the biomechanical effects of different clear aligner traction models are various but not obvious."

基金机构："National Natural Science Foundation of China [11872135, 12072055, 12172034, U20A20390]; Natural Science Foundation of Beijing [L212063]; Chinese Stomatological Association Youth Clinical Research Foundation for Orthodontics [CSAO2020-07]; Project of Chongqing Graduate Tutor Team [dstd201903]; Chongqing Young and Middle-Aged Medical Excellence Team"

基金资助正文："This work was supported by the National Natural Science Foundation of China (Grant Nos. 11872135, 12072055, 12172034, and U20A20390), Natural Science Foundation of Beijing (Grant No. L212063), Chinese Stomatological Association Youth Clinical Research Foundation for Orthodontics (CSAO2020-07), Project of Chongqing Graduate Tutor Team (dstd201903), Chongqing Young and Middle-Aged Medical Excellence Team."