Hammond M, Rock WP. Forces produced by auxiliary torquing springs in the Begg technique.
BRITISH JOURNAL OF ORTHODONTICS 1991;
18:219-23. [PMID:
1931856 DOI:
10.1179/bjo.18.3.219]
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Abstract
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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