title: Augmented reality environment for temporomandibular joint motion analysis.
abstract: The principles of interventional video tomography were applied for the real-time visualization of temporomandibular joint movements in an augmented reality environment. Anatomic structures were extracted in three dimensions from planar cephalometric radiographic images. The live-image fusion of these graphic anatomic structures with real-time position data of the mandible and the articular fossa was performed with a see-through, head-mounted display and an electromagnetic tracking system. The dynamic fusion of radiographic images of the temporomandibular joint to anatomic temporomandibular joint structures in motion created a new modality for temporomandibular joint motion analysis. The advantages of the method are its ability to accurately examine the motion of the temporomandibular joint in three dimensions without restraining the subject and its ability to simultaneously determine the relationship of the bony temporomandibular joint and supporting structures (ie, occlusion, muscle function, etc) during movement before and after treatment.
authors.affiliation: Clinic for Maxillofacial Surgery, AKH-University of Vienna, Austria.
authors.forename: A
authors.initials: A
authors.lastname: Wagner
authors.forename: O
authors.initials: O
authors.lastname: Ploder
authors.forename: J
authors.initials: J
authors.lastname: Zuniga
authors.forename: G
authors.initials: G
authors.lastname: Undt
authors.forename: R
authors.initials: R
authors.lastname: Ewers
mesh_terms: D000328:Adult; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008297:Male; D011859:Radiography; D016059:Range of Motion, Articular / Q000502:physiology; D013704:Temporomandibular Joint / Q000000981:diagnostic imaging / Q000502:physiology*