الفهرس 
Title: Evaluation of the combined effect of corticotomy and low level laser therapy on the rate of orthodontic tooth movement: split mouth randomized clinical trial
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Abstract
The present study was carried out to evaluate and compare two efficient techniques in accelerating orthodontic tooth movement.16 female patients were divided randomly into two equal groups, the first group received surgical corticotomy as a gold standard group while the second group received surgical corticotomy assisted with low level laser therapy in attempt for further acceleration of orthodontic tooth movement. Assessment of the rate of canine retraction through split mouth technique was carried out via series of dental models every 1 month. CBCT images were used to evaluate the total distance traveled by the maxillary canine, 1st molar anchorage loss, tipping, rotation and torque of both maxillary canine and 1st molar after 4 months of canine retraction on both sides. No statistical significant difference was found between both interventions as regards the total distance traveled by the maxillary canine at the end of the 4 month study. Similarly, the rate of canine retraction recorded every 4 weeks follow up period showed statistical non-significant difference on both intervention sides. Moreover, no difference was found in amount of molar anchorage loss or in any CBCT variables assessing tipping, torque and rotation of maxillary canine and 1st molar. Root resorption assessment showed statistically non-significant difference between the two groups