| 郑雪飞,孙大磊,张健.MRC矫治器用于儿童错(牙合)畸形早期矫治的治疗效果及对患儿侧貌的影响[J].口腔材料器械杂志,2020,29(1):31-37. |
| MRC矫治器用于儿童错(牙合)畸形早期矫治的治疗效果及对患儿侧貌的影响 |
| Effects of MRC appliance on the therapeutic efficacy in early treatment of child malformation and the lateral profile of children |
| 投稿时间：2018-04-06 修订日期：2019-12-09 |
| DOI：10.11752/j.kqcl.2020.01.06 |
| 中文关键词: MRC矫治器 错(牙合)畸形 软组织 效果评价 |
| 英文关键词:MRC appliance Malocclusion Soft tissue Effect evaluation |
| 基金项目:乌鲁木齐市卫生局科学技术计划项目（编号：201318） |
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| 中文摘要: |
| 目的 探讨MRC矫治器用于儿童错（牙合）畸形早期的治疗效果及对患儿侧貌的影响。方法 选取2016年7月~2018年2月在我院儿童口腔进行矫治的110例II类错（牙合）患儿作为研究对象，随机分为研究组与对照组，各55例。对照组患儿给予传统直丝弓固定矫治器治疗，研究组患儿给予MRC矫治器进行治疗，测量两组患儿治疗前后X线头颅侧位片相关数据，并评价矫治结束后的治疗效果。结果 （1）治疗后，观察组患儿的SNA角、SNB角、N-Me、N-ANS、N-Me、ANS-Me、MP-FH高于对照组，ANB角、U1-SN角低于对照组（P<0.05）；（2）治疗后，观察组患儿的舌高比对照组高，舌长比对照组低，差异均具有统计学意义（P<0.05）；（3）治疗后，观察组患儿的A'UL-FH、B'LL-FH、A'UL-B'LL和UL-N'-Pos均高于对照组，UL-E、LL-E、UL-U1和LL-U1均低于对照组（P<0.05）。结论 MRC矫治器对儿童错（牙合）畸形早期治疗效果显著，患儿面部软硬组织部分明显改善，面型获得较大改变，具有在临床广泛应用价值。 |
| 英文摘要: |
| Objective The aim of this study was to investigate the effect of MRC appliance in the early stage of children's misdiagnosis and evaluate its effects on the lateral profile of children. Methods A total of 55 patients with type II malocclusion treated with orthodontics in our hospital from July 2016 to February 2018 were selected and randomly divided into the observation group and the control group with 55 cases each. The children in the control group were treated with traditional straight wire fixed appliances, and the children in the observation group were treated with MRC appliances. The data of X-ray cranial lateral radiographs before and after treatment in each patient was measured, and the treatment effect after the end of treatment was evaluated. Results (1) After treatment, the SNA angle, SNB angle, N-Me, N-ANS, N-Me, ANS-Me, MP-FH of the children in the observation group were higher than those in the control group, and the ANB angle and U1-SN angle were lower than those in the control group. (P<0.05); (2) after treatment, the tongue height in the observation group was higher than that in the control group, and the tongue length in the observation group was shorter than that in the control group, and the differences were statistically significant (P<0.05); (3) after treatment, Children's A'UL-FH, B'LL-FH, A'UL-B'LL, UL-N'-Pos in the observation group were higher than that in the control group, and UL-E, LL-E, UL-U1, LL-U1 in the observation group were lower than that in the control group (P<0.05). Conclusion MRC appliance has significant effects on the early treatment of children's malformation, which can improve the soft and hard tissues and facial features of the children obviously. It has a wide application value in clinic. |
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