The T-Scan III/BioEMG synchronization records simultaneously, both occlusal contact force and timing data, and its corresponding muscle activity levels. The two integrated systems capture real-time occlusal contact data and masticatory muscle electrical potentials that during playback, are analyzed by the clinician in a dynamic “Movie”, where both technologies play side-by-side on the computer desktop. In this way, transitory occlusal contact force and timing variances can be time-correlated to specific changes in masticatory muscle activity levels. Both the T-Scan data and the EMG data can be played together forwards and backwards continuously, in 0.003 second frames, or in stop-action, to be able to view small time-increments that relate occlusal function to muscle function.
Published in Chapter:
Employing T-Scan Synchronized with Electromyography to Treat Chronic Occluso-Muscle Disorder
Robert B. Kerstein, DMD (Former Clinical Professor at Tufts University School of Dental Medicine, USA & Private Dental Practice Limited to Prosthodontics and Computerized Occlusal Analysis, USA)
Copyright: © 2015
|Pages: 88
DOI: 10.4018/978-1-4666-6587-3.ch007
Abstract
This chapter discusses chronic Occluso-Muscle Disorder, which is a myogenous subset of Temporomandibular Disorder symptoms resultant from occlusally activated muscle hyperactivity. Published T-Scan-based research since 1991 has determined that a significant etiologic component of Occluso-Muscle Disorder is prolonged (in time) occlusal surface friction that occurs between opposing posterior teeth during mandibular excursions. This friction results in prolonged compressions of the Periodontal Ligament fibers of the involved teeth, which triggers excess muscle contractions within the masticatory muscles. This chapter describes the neuroanatomy of how the excursive friction induces masticatory muscle hyperactivity and illustrates the patient occlusal factors that promote prolonged occlusal surface friction. It explains the patient section criteria for determining if an Occluso-Muscle Disorder patient is a candidate for occlusal intervention, details the computer-guided Occluso-Muscle Disorder treatment known as Disclusion Time Reduction, and supports this measured occlusal treatment with the research studies that validate using this highly effective Occluso-Muscle Disorder therapy.