Orthodontic finishing after TMJ disk manipulation and recapture.
Orthodontic treatment has as its goal in most patients to achieve a cosmetic and functional result. There are functional goals for all orthodontic treatment and in some few cases the functional outweigh the cosmetic; an example would be a cleft-palate case. Orthodontic finishing to a specific condylar position is not routinely a goal of orthodontic care. The reason for this is that only patients who have pain, dysfunction and a negative change in quality of life from their temporomandibular apparatus need this tangential type of treatment. Research has shown that most patients suffering from a temporomandibular disorder (TMD) have displacement of the temporomandibular disk(s). Research has shown that when the mandibular condyle is repositioned to the Gelb 4/7 position that the temporomandibular joint disk is recaptured to a normal position between 85% and 96% of the time. The Gelb 4/7 position has been equated to the physiologic position of the mandibular condyle in the glenoid fossa. TMJ condyle repositioning to the physiologic position has been correlated to disk recapture proven by magnetic resonance imaging (MRI). A case is shown in which a displacement without reduction is manipulated into reduction and maintained with orthodontic correction. TMJ disk displacement without reduction is usually preceded by TMJ disk displacement with reduction. Pumping of the upper joint compartment can assist in reducing the TMJ disk displacement without reduction. Magnetic resonance imaging before and after the manipulation and after orthodontic treatment are shown. A detailed method of orthodontic finishing that maintains a specific condylar position and TMJ disk recapture is shown.
Simmons
H Clifton
HC
D000293:Adolescent; D003768:Dental Occlusion, Centric; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D004204:Joint Dislocations / Q000175:diagnosis / Q000628:therapy*; D008279:Magnetic Resonance Imaging; D008310:Malocclusion / Q000628:therapy*; D008335:Mandibular Condyle / Q000473:pathology; D008349:Manipulation, Orthopedic; D016382:Orthodontic Appliance Design; D018704:Orthodontic Retainers; D009971:Orthodontics, Corrective; D013499:Surface Properties; D019224:Temporomandibular Joint Disc / Q000473:pathology*; D013705:Temporomandibular Joint Disorders / Q000175:diagnosis / Q000628:therapy; D014087:Tooth Movement Techniques / Q000295:instrumentation / Q000379:methods; D016896:Treatment Outcome