Featured article: A finite element analysis of the effects of archwire size on orthodontic tooth movement in extraction space closure with miniscrew sliding mechanics
Sliding mechanics is a standard method used for extraction space closure. Although the retraction force decays by friction between the archwire and the bracket slot, the bracket slids along the archwire so that bodily tooth movement can be easily achieved.
In this study, Kawamura and Tamaya investigate the affects of archwire size on long-term tooth movement in miniscrew sliding mechanisms. Findings reveal that with a decreasing archwire size, a play of the archwire-bracket slot along with the elastic deformation of the archwire resulted in lingual tipping of the incisors.
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About the Editor
Ravindra Nanda, Editor-in-Chief
Dr. Ravindra Nanda is Professor Emeritus, Former UConn Alumni Endowed Chair and Head of the Department of Craniofacial Sciences and Division of Orthodontics, University of Connecticut. He is a Diplomate of the American Board of Orthodontics and a member of various organizations, including the American Association of Orthodontists, European Orthodontic Society and Edward H. Angle Society. He has been active in orthodontic research in the area of biomechanics, clinical trials and acceleration of orthodontic treatment.
Dr. Nanda has given numerous lectures at national and international societies including Mershon Lecture at American Association of Orthodontics and Sheldon Friel Lecture at 2011 EOS Congress. He has authored with his colleagues more than 250 scientific papers and 8 text books. He has been recognized with various awards from numerous international orthodontic organizations.