Abstract: A deglutition assisting instrument is provided comprising:a body in a form of a thin elastic plate for being inserted into and supported in a position between an inner lower portion of lower lip and outer surface of lower gum in oral cavity of a patient, andan operative member projecting from the body,wherein the instrument with the body being in the position allows closing of lips of the patient with the operative member extending out of the oral cavity between the lips, andwherein the body is moved following the movement of the operative member, thereby inducing a desired action in the oral cavity or giving stimulation within the oral cavity.