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J Dent Res 40(5): 988-992, 1961
© 1961 International and American Associations for Dental Research
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Effects of Temperature Change on Mandibular Blood Flow

E. EARL MOORE 1, JACK G. BISHOP 1, J. LESTER MATTHEWS 1, and HOMER L. DORMAN 1

1 Department of Physiology, Baylor University College of Dentistry, Dallas, Texas

The effects of infrared heating and ice-pack cooling on mandibular hemodynamics have been determined by the use of an electromagnetic blood flowmeter and simultaneously recorded arterial blood pressure. Infrared exposure for 1.5 minutes increased blood flow and decreased peripheral resistance. Blood pressure was not significantly changed.

Application of ice packs for 1 minute decreased blood flow and increased peripheral resistance. Arterial blood pressure remained largely unaltered.

Since the peripheral resistance changes resulted primarily from blood-flow variations, the vasomotor mechanisms were considered to be mediated by either a local reflex or the direct effect of temperature change on the vascular bed.

Submitted on November 5, 1960






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