Sialorrhea or chronic drooling is the inability to retain saliva in the mouth. Sialorrhea or drooling is not usually due to a high production of saliva, but to an alteration in its processing. Sialorrhea, also known as thialism, hypersalivation or chronic drooling, is an oral pathology that consists of the production of saliva at abnormally … Continue reading Do you know what sialorrhea, thialism or hypersalivation is? See what it is and symptoms.