Ahmed, Ayman Raouf <br/><br/>
Frictional force in the interactive edgewise bracket system :  An in vitro study / 
 قوة الاحتكاك فى النظام التفاعلى للحاصرات التقويمية : دراسة مخبرية. 
Ayman Raouf Ahmed ; Supervised by Mohamed Abdelaleem Bushnak, Hoda Mohamed Abdelaziz. 
 - Cairo :  Cairo University  2000. 
 - 67, [2] Leaves :  ill. ;  30 cm+  1 CD. 
<br/><br/> Thesis (M.Sc.) - Cairo University. Faculty of Oral and Dental Medicine. Department of Orthodontics.<br/> 
<br/><br/>Includes bibliographical references.<br/> 
<br/><br/> The main objective of this study was to evaluate and compare, the kinetic frictional force between two recent generation of interactive (self--ligated) brackets, and two different design of conventionally ligated brackets.<br/>Sixty-eight maxillary canine brackets, all having a slot size 0.018 x 0.025 - inch, were utilized in this investigation. They were divided into four groups. 
<br/><br/><br/>Text in English, abstracts in English & Arabic.<br/> 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Orthodontic Brackets
<br/><br/><label>Subjects--Index Terms: </label>Frictional force. Interactive edgewise. 
<br/><br/><label>Dewey Class. No.: </label>617.643  / A F