Many alternatives exist for treating chronic drooling. The treatment of a patient with amyotrophic lateral sclerosis who complained of chronic drooling and lack of retention of fluids while drinking is presented. In this case, an alternative type of intraoral prosthesis, not previously reported in the dental literature, was used to treat chronic drooling. A lip plumper prosthesis was fabricated to approximate the partially incompetent lips and create an oral seal. The results of the prosthesis therapy for this patient are encouraging both physically and psychologically.