[Temporomandibular joint function after orthognathic surgery--the individual factors].

Case studies presented in the literature present evidence that individual factors may influence mandibular mobility unfavorably after mandibular advancement osteotomies. These factors are, respectively: high preoperative dysfunction index, preoperative articular pain in movement, preoperative reciprocal clicking, advanced patient age, and significant overjet reduction. This study identifies these individual factors, which can influence postoperative functional condition, and documents conclusively the importance of individual, function oriented preoperative planning in orthognathic surgery. Taken together these factors indicate that the adaptation ability of the effected tissue should be given greater attention in planning the operation.