<p>A modular prosthesis for reconstructing a mandible rendered segmental y resection, comprising 3 types of prosthetic modules which may be connected to one another in series to bridge the resection and anchored upon the segmental mandible (10). The anchoring and connection between the modules are achieved by tongue (26)-in-hole (44) means which allows adjustments to bend the serially-linked modules to conform to the desired contour of the resection. One of the modules is designed to essentially replace the condyle-ramus-angle part (12) of the mandible. The other 2 modules are designed to bridge the resected body of the mandible and are preferably reconstructed at about 5 mm below the gingival and still allow cones to be inserted into ports into the modules.</p>