The invention relates to the field of
medical instruments, in particular to a self-fixing individualized mandible
retainer and a construction method thereof. The construction method comprises the following steps: constructing a
jaw bone three-dimensional fusion model based on a
jaw bone three-dimensional model, a
maxillary tooth three-dimensional model and a
mandibular tooth three-dimensional model; based on the outer surface of the
maxillary dentition, constructing and obtaining a
maxillary tooth sleeve retention area, and forming a
maxillary tooth retention groove corresponding to the
mandibular dentition in the maxillary tooth sleeve retention area; on the basis of the outer surface of the
mandibular dentition, constructing a
mandibular tooth biteplate area, and forming a
mandibular tooth containing groove corresponding to the
mandibular dentition in the bottom of the mandibular tooth biteplate area; and constructing an
occlusion connection area, wherein the
occlusion connection area is connected with the maxillary tooth sleeve retention area and the mandibular tooth
occlusion plate area. A user wears the mandible
retainer to fix the mandible at a proper position of the mandible designed by a computer by means of the maxillary tooth sleeve and the biteplate, and the proper position of the mandible is adjusted according to the design of different
rehabilitation stages of the user, so that the effect of preventing the mandible from retreating after an operation can be achieved.