Shereen Adel Abdelkader Mostafa <br/><br/>
The effect of low intensity laser and ascorbic acid on orthodontic tooth movement during canine retraction :   Radio-Densito-Metric Study /  
 تأثير الليزر منخفض الشدة وحمض الاسكوربيك على تحريك الاسنان تقويميا أثناء الشد الخلفى للناب :   دراسة قياسية لكثافة العظام بالأشعة 
Shereen Adel Abdelkader Mostafa ; Supervised Hisham A.Afifi , Mouchira S. Eldin , Moustafa A. Abdelrahman 
 - Cairo :   Shereen Adel Abdelkader Mostafa ,   2013 
 - 87 Leaves :   charts , facsimiles ;   30cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Orthodontics 
<br/><br/> The current study was carried out compare the rate of tooth movement during canine retraction between sliding mechanics represented by a NiTi closed coil spring versus sectional mechanics represented by T-loop, using Cone Beam Computer Tomography (CBCT). Materials and Method: Ten patients were selected in a split mouth study design who had a malocclusion that necessitates the extraction of maxillary first premolars and retraction of maxillary canines 
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<br/><br/><label>Subjects--Index Terms: </label>Canine retraction  Sectional mechanics  Sliding mechanics