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发光二极管和激光对大鼠下颌骨生长的影响。

The effect of light-emitting diode and laser on mandibular growth in rats.

作者信息

El-Bialy Tarek, Alhadlaq Adel, Felemban Nayef, Yeung Jasper, Ebrahim Amal, Hassan Ali H

机构信息

a Associate Professor, Department of Orthodontics, School of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.

出版信息

Angle Orthod. 2015 Mar;85(2):233-8. doi: 10.2319/030914-170.1. Epub 2014 Jul 14.

Abstract

OBJECTIVE

To evaluate the effect of a light-emitting diode (LED) and/or low-level laser (LLL) with or without the use of anterior bite jumping appliances (also known as functional appliances [FAs]) on mandibular growth in rats.

MATERIALS AND METHODS

Thirty-six 8-week-old male Sprague-Dawley rats weighing 200 g were obtained from Charles River Canada (St. Constant, QC, Canada) and were divided into six groups of six animals each. Groups were as follows: group 1: LLL; group 2: LLL + FA; group 3: LED; group 4: LED + FA; group 5: FA; and group 6: control (no treatment). Mandibular growth was evaluated by histomorphometric and micro computed tomographic (microCT) analyses.

RESULTS

The LED and LED + FA groups showed an increase in all condylar tissue parameters compared with other groups.

CONCLUSION

The LED-treated groups showed more mandibular growth stimulation compared with the laser groups.

摘要

目的

评估发光二极管(LED)和/或低强度激光(LLL)联合或不联合使用前牙咬合跳跃矫治器(也称为功能性矫治器[FAs])对大鼠下颌生长的影响。

材料与方法

从加拿大查尔斯河公司(加拿大魁北克省圣康斯坦特)获得36只8周龄、体重200 g的雄性斯普拉格-道利大鼠,并将其分为6组,每组6只动物。分组如下:第1组:LLL;第2组:LLL + FA;第3组:LED;第4组:LED + FA;第5组:FA;第6组:对照组(不治疗)。通过组织形态计量学和显微计算机断层扫描(microCT)分析评估下颌生长情况。

结果

与其他组相比,LED组和LED + FA组的所有髁突组织参数均有所增加。

结论

与激光组相比,LED治疗组显示出更多的下颌生长刺激作用。

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