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Clinical effect of tip-edge plus appliance in children with angle II1 malocclusion

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Summary

The effects of Tip-Edge plus appliance in the treatment of Angle II1 malocclusion and the mechanism were investigated. Fifty-two Angle II1 children, aged from 12.3–14.2 years, with mandibular retrusion in permanent dentition were selected and treated with Tip-Edge plus appliance. Lateral cephalometric films taken before and after treatment were analyzed. The arithmetic mean and standard deviation were calculated for each variable. Paired t-test was performed to evaluate the significant treatment change. Results showed that the average treatment time was 16 months. Normal overjet and overbite were established with retroclination of upper incisors and proclination of lower incisors. U1-NA was decreased by 15.4° (P<0.01). ANB and Y axial angle were decreased significantly (P<0.05). Soft tissue measurements showed that FCA and UL-E were decreased dramatically (P<0.05), and LL-E was increased significantly (P<0.05). Remarkable soft tissue change was noted after the treatment and convex facial profile changed to the straight profile. In conclusion, Tip-Edge plus technique can quickly and efficiently correct anterior bite and lateral outlook.

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Authors and Affiliations

  1. Department of Stomatology, China PLA General Hospital, Beijing, 100853, China

    Lu-lu Xu  (徐璐璐), Zhen-yang Gao  (高振洋) & Hong-chen Liu  (刘洪臣)

  2. Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China

    Li-li Chen  (陈莉莉) & Xing-yan Du  (杜星颜)

Authors
  1. Lu-lu Xu  (徐璐璐)
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  2. Li-li Chen  (陈莉莉)
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  3. Xing-yan Du  (杜星颜)
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  4. Zhen-yang Gao  (高振洋)
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  5. Hong-chen Liu  (刘洪臣)
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Corresponding author

Correspondence to Hong-chen Liu  (刘洪臣).

Additional information

The authors contributed equally to this work.

This project was supported by grants from the National Natural Science Foundation of China (No. 81100776) and Army Medical Research “12th Five-Year Plan” project (CWS11J118).

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Xu, Ll., Chen, Ll., Du, Xy. et al. Clinical effect of tip-edge plus appliance in children with angle II1 malocclusion. J. Huazhong Univ. Sci. Technol. [Med. Sci.] 33, 886–891 (2013). https://doi.org/10.1007/s11596-013-1216-6

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  • DOI: https://doi.org/10.1007/s11596-013-1216-6

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