Removable sectional complete denture for managing oral sub-mucous fibrosis patient with restricted mouth opening: A clinical report

Restricted mouth opening (microstomia) can be defined as a reduction in the circumference of the oral cavity, although the intraoral structures may be of normal size. It is observed that the size of the oral opening decreases, the difficulty increases in required dental treatment. Prosthetic rehabilitation of microstomia patients due to oral sub-mucous fibrosis (OSMF) presents difficulties at all stages, right from preliminary impressions to insertion of prostheses, as the maximal oral opening is smaller than the size of a removal intra-oral prosthesis. To rehabilitate this type of patient successfully, the methods and designs incorporated in the fabrication of prosthesis have to be modified to achieve favourable mastication, retention and aesthetics. This article describes modified primary impression procedure without using tray and other techniques used to fabricate maxillary and mandibular custom sectional trays, sectional denture bases and removable sectional complete dentures for completely edentulous patient with limited oral opening caused by OSMF. Fabricating the sectional denture allows the patient to insert and remove the denture with ease.