ABSTRACT
Temporomandibular joint dysfunction (TMD) is defined as: ‘signs and symptoms originating from the musculoskeletal structures of the masticatory system’. Disc displacement is a single entity included under the differential diagnosis of TMD, and TMD is a subcategory of craniofacial pain. Clearly, a comprehensive presentation on TMD and craniofacial pain falls outside the scope of this book; however, a more complete understanding of disc displacement, its clinical presentation, and treatment options, could be of benefit to the treating orthodontist.
