Patent ID: 7534105

Claim:
An occludator, comprising a lower bow-shaped part for mounting a lower jaw tooth mold, an upper bow-shaped part for mounting an upper jaw tooth mold, and right and left joints which enable a movement including an opening/closing movement and a lateral movement so that the lower bow-shaped part and the upper bow-shaped part are vertically brought into contact with each other via an elastic body for applying an urging force in a direction of bringing the lower bow-shaped part and the upper bow-shaped part relatively close to each other, characterized in that each of the right and left joints comprises an artificial condyle which is detachably mounted on the lower bow-shaped part and protrudes upward and an artificial articular fossa which is detachably mounted on the upper bow-shaped part and is opposed to the artificial condyle from above, the artificial condyle and the artificial articular fossa are both identical in contour to the mandibular condyle or the maxillary fossa protruding closer to an ideal model during fabrication of the upper jaw tooth model, wherein, each of the right and left joints is constituted of an upper joint and a lower joint which are opposed to each other, the upper joint is constituted of an upper mounting member supported by the upper bow-shaped part, a maxillary fossa model, and first mounting means for detachably mounting a pedestal of the maxillary fossa model on the upper mounting member, and the lower joint is constituted of a lower mounting member fixed on the lower bow-shaped part, a mandibular condyle model, and second mounting means for detachably mounting a pedestal of the mandibular condyle model on the lower mounting member, and wherein, the first mounting means is constituted of a male screw part formed on the upper mounting member, a cylindrical member having a female screw formed in an inner surface, the female screw enabling to be screwed to the male screw, and an inner flange which is formed integrally with the cylindrical member, forms a hole permitting passage of the maxillary fossa model, and can make contact with a periphery of the pedestal of the maxillary fossa model, and the periphery of the pedestal of the maxillary fossa model is sandwiched between the upper mounting member and the inner flange by screwing the female screw to the male screw.