MSE骨性扩弓对成人上牙弓狭窄扩弓效果的CBCT分析

摘要/Abstract

摘要： 观察分析MSE骨性扩弓治疗成人上牙弓狭窄的扩弓效果。方法　选取上牙弓狭窄的成人患者13例（18~24岁；平均年龄20.7岁，男6例，女7例），应用MSE骨性扩弓器进行上牙弓扩宽；所有患者均在3个月内完成加力。扩弓后拍摄CBCT与扩弓前CBCT对比，分析扩弓前后上牙弓及颌骨横向宽度相关指标的变化。数据比较采用配对t检验。结果　除1例患者因感染因素造成扩弓失败外，其他12例患者均顺利完成扩弓，扩弓后CBCT显示：①尖牙间及第一磨牙间牙弓宽度明显增加（P<0.05）；②腭中缝宽度，上颌基骨宽度，鼻腔底宽度等骨性指标均增加，与治疗前相比有显著统计学意义（P<0.05）；③上颌第一磨牙及牙槽颊向倾斜度仅有轻微增加，差异无显著统计学意义（P>0.05）。结论　MSE骨性扩弓对牙弓狭窄的成人患者可显著扩宽牙弓及基骨。

关键词: 快速扩弓, 腭中缝, 微种植支抗钉, CBCT

Abstract: Objective　To determine the changes after maxillary skeletal expansion(MSE) in adults with narrow upper arch by cone-beam CT(CBCT). Methods　This study included 13 patients(6 males, 7 females; range 18-24 years old, mean age 20.7) with narrow upper arch treated with MSE. CBCT images were taken before， after expansion. The following items were compared and measured:upper arch width, the midpalatal suture width, maxillary basal bone width, nasal cavity width, and other measurements. Statistical analyses were performed using paired t-test. Results　Except for 1 patient who failed because of the infection, all the other 12 patients obtained good effects. The CBCT measurements were as follows:① upper arch width was obviously expanded(P<0.05）; ② the midpalatal suture width, maxillary basal bone width and nasal cavity width were expanded respectively with significant statistical difference(P<0.05）; ③ the inclination of upper first molar was slightly increased with no significant statistical difference(P>0.05）. Conclusion　MSE is an effective method for maxillary expansion in adult patients with narrow upper arch.

Key words: rapid maxillary expansion, mid-palatalsuture, micro-implant anchorage, cone-beam computed tomography

中图分类号:

783.5

郑如松陈菲孙雪玉李岩涛. MSE骨性扩弓对成人上牙弓狭窄扩弓效果的CBCT分析[J]. 口腔医学, 2021, 41(1): 43-49.

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