A technique for objective determination of vascular changes in oral tissues and structures in response to systemic and  local drug action.
D000680:Amyl Nitrite / Q000494:pharmacology*; D000818:Animals; D001775:Blood Circulation; D001810:Blood Volume; D002415:Cats; D004285:Dogs; D004837:Epinephrine / Q000494:pharmacology*; D007545:Isoproterenol / Q000494:pharmacology*; D009055:Mouth / Q000098:blood supply* / Q000187:drug effects*; D010992:Plethysmography, Impedance
D000680:Amyl Nitrite; D007545:Isoproterenol; D004837:Epinephrine