| 孙大为,王 辉,李 璟,李锦锋,付芳岐.前方牵引矫治器对儿童骨性III类𬌗上下颌骨发育及侧貌的影响[J].,2017,17(11):2106-2109 |
| 前方牵引矫治器对儿童骨性III类𬌗上下颌骨发育及侧貌的影响 |
| Effect of Protraction Appliance on Jaw Development and Side Appearance of Children with Skeletal Class III Malocclusion |
| 投稿时间：2016-10-18 修订日期：2016-11-10 |
| DOI：10.13241/j.cnki.pmb.2017.11.027 |
| 中文关键词: 牵引矫治器 骨性Ⅲ类 错𬌗 颌骨发育 |
| 英文关键词: Protraction appliance Skeletal class Ⅲ Malocclusion Maxillary |
| 基金项目:陕西省科学技术研究发展计划项目(S2016YFSF0729) |
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| 中文摘要: |
| 摘要 目的：探讨前方牵引矫治器对儿童骨性III类错??上下颌骨发育及侧貌的影响。方法：选择2013年1月至2014年1月来我院进行治疗的骨性Ⅲ类错??患儿27例，所有患儿均接受前方牵引矫治器治疗。比较矫正前1个月和佩戴矫治器6个月后患儿软组织变化情况，评价患儿外貌改善情况；同时比较矫治前后患儿头颅侧位片指标差异，评价上下颌骨发育状况。结果：治疗后患儿面凸角由负变正，全面凸角显著减少，上唇突点与审美线之间的距离显著减少（P<0.05）；但下唇突点与审美线之间的距离治疗前后无显著差异（P>0.05）；治疗后SNA、ANB、Wits值、FMA、SND、SN-MP、SN-PP都有显著变化（P<0.05）。结论：采用前方牵引矫治器对骨性Ⅲ类错??患儿进行治疗，可有效改善患儿侧貌，促进患儿上颌发育，改变下颌骨生长方向，并使两者变得更加协调。 |
| 英文摘要: |
| ABSTRACT Objective: To investigate the effect of protraction appliance on jaw development and side appearance on children with skeletal Class III malocclusion. Methods: The clinical data of 27 patients treated in our hospital from Jan 2013 to Jan 2014 were ana- lyzed. All patients received protraction appliance treatment. Compare the soft tissue changes before and after the treatment to evaluate the side appearance change. Compare the cephalometric indexes changes before and after the treatment to evaluate the jaw development. Results: There were significant difference in side lobes and full lobes before and after the treatment (P<0.05). Besides, a significant re- duction from the upper lip to the aesthetic lines was observed (P<0.05). There was no significant difference in the distance between the lower lip to the aesthetic lines before and after the treatment (P>0.05). The other seven indexes, SNA, ANB, Wits value, FMA, SND, SN-MP, SN-PP, have a significant difference before and after the treatment (P<0.05). Conclusion: Protraction appliance on treating skele- tal class Ⅲ malocclusion of children can effectively improve the appearance side, promote the development of maxillary, and promote mandibular growth. |
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