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首页> 外文期刊>Dental Press Journal of Orthodontics >Evaluation of immediate soft tissue changes after rapid maxillary expansion
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Evaluation of immediate soft tissue changes after rapid maxillary expansion

机译：快速上颌扩张后立即软组织变化的评估

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OBJECTIVE: To evaluate immediate soft tissue changes following rapid maxillary expansion (RME) in growing patients, using cone beam computed tomography (CBCT). METHODS: Twenty-three consecutive patients (10 male, 13 female) treated by RME were selected. Patients were scanned using CBCT prior to placement of the rapid maxillary expander (T0), then immediately following full activation of the appliance (T1). Defined landmarks were then located on the pre- and post-treatment orientated images. Change in landmark position from pre- to post-treatment was then measured. In addition to landmarks, 10 direct measures were made to determine distance change without regard to direction to measure soft tissue change of the lips. RESULTS: Significant transverse expansion was measured on most soft tissue landmark locations. All the measures made showed significant change in the lip position with a lengthening of the vertical dimension of the upper lip, and a generalized decrease of anterior-posterior thickness of both the upper and lower lips. CONCLUSIONS: Significant changes in the soft tissue do occur with RME treatment. There is a transverse widening of the midface, and a thinning of the lips.
机译：目的：使用锥束计算机断层扫描（CBCT）评估正在成长的患者中快速上颌骨扩张（RME）后立即发生的软组织变化。方法：选择RME治疗的23例患者（男10例，女13例）。在放置快速上颌骨扩张器（T0）之前，然后使用CBCT对患者进行扫描，然后完全激活器械（T1）。然后，将定义的界标定位在治疗前后的图像上。然后测量从治疗前到治疗后标志性位置的变化。除了路标，还进行了10个直接测量来确定距离变化，而不考虑方向来测量嘴唇的软组织变化。结果：在大多数软组织标志性部位测量到明显的横向膨胀。所采取的所有措施均表明，随着上唇垂直尺寸的增加，嘴唇位置发生了显着变化，上下嘴唇的前后厚度普遍减小。结论：RME治疗确实会引起软组织的重大改变。中脸横向变宽，嘴唇变细。

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