Quantitative Measurement Of Drooling

Abstract
A method for quantitative measurement of drooling, utilizing the radioactive isotope 99mtechnetium, is introduced. The aim of this method is to evaluate results of therapy against this state. Drooling patients were given 100 μCi 99mTC intravenously. Saliva samples were repeatedly taken from the mouth for 9 hours and the isotope concentration was examined. The drooled saliva was collected in disposable bibs. From the measured radioactivity in the bibs and the saliva samples, the amount of drooled saliva could be calculated. The results show, as regards saliva production in a normal population, great variations in amount of drooled saliva within as well as between individuals. With due precautions, the method is useful for quantitative measurement of drooling.