Retention of complete dentures has always posed a problem for dental practitioners and prosthodontists. Various methods have been used to increase denture retention. One technique used in earlier times involved adding a suction chamber to the tissue surface of the denture to create a vacuum for better retention. However, this method did not gain popularity due to its negative effects. Patients with suction chambers in their dentures ended up with perforations of the palate. We are presenting two cases of palatal perforation caused by the use of suction chambers in dentures.