Clin Cosmet Investig Dermatol:A型肉毒毒素治疗咬肌肥大的2种注射方法

2018-10-16 佚名 中国医疗美容

咬肌肥大常造成患者对外表的困扰,引起咬肌肥大的原因包括压力,慢性磨牙症,咬肌功能亢进等。亚洲人群因为饮食习惯、面部骨骼肌肉特征,发生咬肌肥厚的情况更突出。已有研究表明,A型肉毒毒素在改善咬肌肥大中作用显著,但目尚前没有一种标准的注射技术。该研究评估了两种不同注射方法在改善咬肌肥大中疗效及安全性。

咬肌肥大常造成患者对外表的困扰,引起咬肌肥大的原因包括压力,慢性磨牙症,咬肌功能亢进等。亚洲人群因为饮食习惯、面部骨骼肌肉特征,发生咬肌肥厚的情况更突出。已有研究表明,A型肉毒毒素在改善咬肌肥大中作用显着,但目尚前没有一种标准的注射技术。该研究评估了两种不同注射方法在改善咬肌肥大中疗效及安全性。

资料与方法

研究纳入30名咬肌肥大患者(均为女性,年龄>18岁),随机分为2组,一组采用单点注射技术(SIT),另一组采用多点注射技术(MIT),2组患者在18个月内没有接受过其他面部填充治疗,符合研究所需纳入及排除标准。

组1:患者接受双侧咬肌A型肉毒毒素单点注射,共40U,注射部位为咬肌三个头重叠处。

组2:患者接受双侧咬肌A型肉毒毒素多点注射,共40U,共5点,每点8U,从咬肌中央开始向四周分散,两点间距1cm,呈现出正方向的注射区域。


利用标准化3D摄影技术,让求美者在静息状态及咬合时拍摄,研究者保证单盲评估的方法,对患者的治疗效果进行GAIS量表评估ICM角以及咬肌最突出点至中线距离,同时对患者进行满意度调查,在求美者注射后6w,16w及20w的时间进行随访。


研究结果

患者平均年龄31.06岁,共60个单侧面部进行展示。评估指标显示,治疗后ICM角以及距中线距离显着改善,面部轮廓得到改善,咬肌突出得到缓解,两组间数据统计无统计学差异(p>0.05)。2组求美者满意度高,无不良反应发生。


讨论分析

本研究再次证实A型肉毒毒素可以缓解咬肌肥大的症状,结果显示单点注射和多点注射均能起到良好的治疗效果,也可以为临床工作答疑解惑,并且研究通过中长期的随访也确定了注射的安全性。

这项研究的局限性在于,研究人员在治疗前后没有进行功能测试,以研究此治疗方法咬合能力、微笑等颌面活动的影响。未来的研究可以更关注此类功能性的观察指标。作者也建议,可以延长随访的时间,进一步探究注射治疗的有效周期。

原始出处:

Nikolis A, Enright K M, Masouri S, et al. Prospective evaluation of incobotulinumtoxinA in the management of the masseter using two different injection techniques:[J]. Clinical Cosmetic & Investigational Dermatology, 2018, 11:347-356.

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    2019-02-03 一闲
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    2019-01-04 tcm99hq
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    2018-11-25 医医不舍vvp

    分享不了

    0

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