J. Orthod.
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British Journal of Orthodontics, Vol 18, 219-223, Copyright © 1991 by British Orthodontic Society

ARTICLES

Forces produced by auxiliary torquing springs in the Begg technique

M Hammond and WP Rock
Department of Children's Dentistry and Orthodontics, University of Birmingham Dental School, St Chad's Queensway, Birmingham.

Different designs of Begg torquing auxiliary have been tested to measure the forces produced at the apex of a tooth. Forces at the tooth surface ranged from 0.4 to 3.3 N, equivalent to 0.1-0.9 N at the root apex.




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Copyright © 1991 British Orthodontic Society.