MSE骨性扩弓对成人上牙弓狭窄扩弓效果的CBCT分析  

Changes after maxillary skeletal expansion in adults with narrow upper arch:CBCT analysis

作　　者：郑如松 陈菲 孙雪玉 李岩涛[2] ZHENG Rusong;CHEN Fei;SUN Xueyu;LI Yantao(Department of Orthodontics,Rizhao Stomatology Hospital,Rizhao 276800,China)

机构地区：[1]日照口腔医院正畸科,山东日照276800 [2]日照市中医医院口腔科,山东日照276800

出　　处：《口腔医学》2021年第1期43-49,共7页Stomatology

摘　　要：目的观察分析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。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.

关 键 词：快速扩弓 腭中缝 微种植支抗 CBCT 

分 类 号：R783.5[医药卫生—口腔医学]