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J Dent Res 43(5): 708-711, 1964
© 1964 International and American Associations for Dental Research
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In Vivo Oxygen Tension Measurements in Gingival Tissue

HOMER L. DORMAN 1 and JACK G. BISHOP 1

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

Oxygen tensions in vivo were made on mongrel dogs. The normal oxygen tension of animals breathing room air was found to average 56 mm/Hg. Hyperventilating with air raised the reading to near 85 mm/Hg, while hyperventilating with 100 per cent oxygen increased the gingival oxygen tension to above 300 mm/Hg. Vasodilation with acetylcholine resulted in an increase to 110 mm/Hg, while vasoconstriction with epinephrine decreased the oxygen tension to 58 mm/Hg.

Submitted on October 7, 1963






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