MRI-based stereolithographic models of the temporomandibular joint: technical innovation.
A new technique of manufacturing dual-colour stereolithographic models of hard and soft tissues of the temporomandibular joint (TMJ) is presented. Sagittal T1/PD weighted magnetic resonance (MR) images of joints with and without disc displacement were obtained in the closed and open mouth positions. Individual interactive contour identification of bony structures and the articular disc followed by binary interpolation provided the data for the generation of acrylic TMJ models. Three dimensional in vivo visualization of the articular disc in relation to bony structures in the closed and open mouth positions allows a new perception of normal and pathological TMJ anatomy.
Undt
G
G
Department of Oral and Maxillofacial Surgery, University of Vienna, Austria. gerhard.undt@akh-wien.ac.at
Wild
K
K
Reuther
G
G
Ewers
R
R
D000180:Acrylic Resins; D016723:Bone Remodeling; D017076:Computer-Aided Design; D006801:Humans; D004204:Joint Dislocations / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008335:Mandibular Condyle / Q000473:pathology; D008953:Models, Anatomic; D016059:Range of Motion, Articular; D013701:Temporal Bone / Q000473:pathology; D013704:Temporomandibular Joint / Q000473:pathology*; D019224:Temporomandibular Joint Disc / Q000473:pathology; D013705:Temporomandibular Joint Disorders / Q000473:pathology
D000180:Acrylic Resins