Short-term consequences of orthognathic surgery on stomatognathic function.
Craniomandibular dysfunction, mandibular range of motion and occlusal contacts subsequent to surgical-orthodontic treatment were studied in 20 adults with Le Fort I impaction and/or advancement, 34 with vertical ramus setback, 12 with sagittal split advancement and 16 with Le Fort I impaction, and/or advancement and bilateral vertical ramus setback. All subjects were examined 1 week before surgery and 6 months post-operatively. The results of the study indicated that 6 months post-operatively: (a) There was a decrease (NS) in dysfunction patients in the maxillary and double-jaw osteotomy groups, and an increase in the mandibular advancement osteotomy sample (P < 0.05). (b) There was a significant decrease in maximal interincisal opening in both mandibular osteotomy groups (P < 0.01) and in laterotrusive movements in the mandibular advancement group (P < 0.05). (c) The number and intensity of occlusal contacts increased significantly in the maxillary and mandibular setback osteotomy groups (P < 0.01 and P < 0.001, respectively).
Athanasiou
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AE
Department of Orthodontics, Aristotle University of Thessaloniki, Greece.
Yücel-Eroğlu
E
E
D000293:Adolescent; D000328:Adult; D017271:Craniomandibular Disorders / Q000628:therapy; D003766:Dental Occlusion; D005157:Facial Pain / Q000628:therapy; D005500:Follow-Up Studies; D006801:Humans; D008334:Mandible / Q000503:physiopathology / Q000601:surgery*; D008336:Mandibular Diseases / Q000628:therapy; D008437:Maxilla / Q000601:surgery*; D009068:Movement; D010027:Osteotomy / Q000379:methods; D013284:Stomatognathic System / Q000502:physiology*; D013705:Temporomandibular Joint Disorders / Q000628:therapy