There is provided a mandibular prosthesis comprising: temporomandibular anchor configured for fixation to a temporal bone in use； and a mandible portion having at least one ascending ramus portion, wherein the ramus portion and the temporomandibular anchor portion are secured together by a rotational attachment such that the mandible portion is able to: rotate at least anteroposteriorly with respect to the temporomandibular anchor； and travel mediolaterally with respect to the temporomandibular anchor to facilitate chewing and opening and closing of the prosthetic mandible relative to the upper jaw. There is also provided a temporomandibular anchor configured for fixation to a temporal bone in use wherein, the temporomandibular anchor is configured for forming a rotational attachment with a mandible portion such that the that the mandible portion is able to: rotate at least anteroposteriorly with respect to the temporomandibular anchor； and travel mediolaterally with respect to the temporomandibular anchor to facilitate chewing and opening and closing of the prosthetic mandible relative to the upper jaw.
