Dento-maxillary Prosthesis with Soft Lining Material for Maxilla-Defect Edentulous Patient （A Case Report）

Abstract

The patient was a 64-year-old male with fully hard palate defect, which was caused by a maxillectomy ten years ago. Although a dento-maxillary prosthesis was fabricated and adjusted at a hospital for a year, the prosthesis did not satisfy the patient.
Since maxillofacial prostheses are not stable on mastication, it is very difficult to manage the pressure distribution under the denture. In this case, the palate which receives the functional force from the denture is very narrow, therefore the dento-maxillary prosthesis was hardly stable and it was impossible to distribute the pressure under the denture evenly.
At first the old denture was adjusted and a new dento-maxillary prosthesis was fabricated with the dynamic impression technique. Soft lining material was used for the hollow-type obturator to reduce the weight of the prosthesis and lingualized occlusion was applied to reduce the pressure on the supporting structure under the prosthesis.