Experimental study of the migration of charcoal particles in the human mouth.
Suspensions of charcoal in water, placed in the vestibule on one side of the mouth, spread within about 5 min to the dorsum of the tongue and the hard palate on the same side but did not cross the mid-line. When placed centrally under the tongue, the movement of charcoal was equally rapid but it spread over the whole surface of the mouth.
D001692:Biological Transport; D002606:Charcoal / Q000378:metabolism*; D002610:Cheek; D006801:Humans; D009055:Mouth / Q000378:metabolism*; D013997:Time Factors; D014059:Tongue
D002606:Charcoal