J. Orthod.
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British Journal of Orthodontics, Vol 11, 137-142, Copyright © 1984 by British Orthodontic Society

ARTICLES

Appliance breakages

WJ Kerr

A survey of appliance breakages over a 12-month period revealed that the acrylic baseplate and bite planes (57 per cent) fractured more frequently than wire elements (43 per cent). The number of appliances broken represented about one in five of new appliances fitted during the period. More than half of the breakages were perpetrated by persistent offenders and 31 per cent of appliances broke while they were removed from the mouth, but in the care of the patient. Inadequate properties of the acrylic resin and carelessness on the part of the patient are suggested as the most important causative factors.


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S. E. Eden, W. J. S. Kerr, and J. Brown
A clinical trial of light cure acrylic resin for orthodontic use
J. Orthod., March 1, 2002; 29(1): 51 - 55.
[Abstract] [Full Text] [PDF]


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Copyright © 1984 British Orthodontic Society.