Obturation means to “close”. The vast majority of patients needing an obturator have undergone cancer of the mouth. Surgical removal has left an opening between the mouth and nose. Without obturation, speech, chewing, and swallowing are greatly affected. These devices are removable, like a denture or partial, to allow cleaning of the obturator and hygiene of the mouth. A properly made obturator is comfortable, esthetic, and restores these patients to near normal function.