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J Dent Res 51(2): 461-467, 1972
© 1972 International and American Associations for Dental Research
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Thermal Fatigue in Teeth

W. S. BROWN 1, H. R. JACOBS 1, and R. E. THOMPSON 1

1 Institute for Biomedical Engineering and Department of Mechanical Engineering, College of Engineering, University of Utah, Salt Lake City, Utah 84112, USA

This paper presents the results of experiments conducted with extracted human and bovine teeth. The teeth were subjected to thermal cycling at temperatures between 140 and 90 F. The results ofler conclusive evidence that thermal fracture may be induced by the thermal stresses caused by the temperature cycling. Less than 3,000 thermal cycles cause severe cracking or the propagation of cracks previously existing in the teeth, or both.

Submitted on September 10, 1970






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