Provided is a full denture base manufacturing method capable of easily manufacturing a full denture base using a mandibular impression tray and maxillary impression tray set for taking impressions from an edentulous patient. An impression material is filled in each of a set of impression trays comprising a maxillary impression tray (3) and mandibular impression tray (4) each having a U-shape groove having the impression material filled in the front and a protrusion (1) protruding from the back the filled impression material is pressed against the alveolar ridge in the oral cavity and cured, and the bite position and height is determined while making at least a part of the flat top surfaces of the protrusions (1) of each impression tray (3, 4) contact each other in that state, the impression material is filled between the back surfaces of the impression trays (3, 4) and cured the mandibular and maxillary impression trays (3, 4) and the impression material therein are removed from the oral cavity together or separately a molding material is injected into the impression material of the mandibular and maxillary impression trays and cured to create an edentulous model said edentulous model is mounted in an articulator in a state reflecting the previously determined bite position and height, and a full denture base is created.Linvention concerne un procédé de fabrication de base de prothèse complète apte à fabriquer facilement une base de prothèse complète à laide dun ensemble de porte-empreinte mandibulaire et de porte-empreinte maxillaire pour réaliser des empreintes dun patient édenté. Un matériau dempreinte est introduit dans chacun dun ensemble de porte-empreintes comprenant un porte-empreinte maxillaire (3) et un porte-empreinte mandibulaire (4) ayant chacune une rainure en forme de U ayant le matériau dempreinte introduit à lavant et une saillie (1) faisant saillie à partir de larrière le matériau dempreinte introduit est pressé contre la nervure alvéolaire dans l
