Advancement in the field of dentistry gave way to quantifiable, accurate diagnostic aids to explore and analyse the Stomatognathic system as a whole, in order to achieve a harmony between teeth, muscles and joints.
While T-Scan Digital Occlusal Analysis Technology can help the clinician to accurately explore the occlusal discrepancies, excessive contact location in the arch and provide tooth contact time and force variance, JVA or Joint Vibration Analysis measures the vibrations produced by the condyle during mandibular movement and the ElectroMyography (EMG) measures the level of the masticatory muscle activity at rest and during function.
The measurable capacity of T-Scan III™ (Tekscan Inc, Boston, USA), can be referred to as “Digital Proprioception” for its ability to map occlusal contact location, sequence of closure, measure intensity of occlusal contacts in force and time variance, quantify occlusion and disclusion time, bring about measurable time delay for implant prosthesis, measure frictional contacts during closure and/or excursive movement and monitors the generation of bilateral simultaneity in the arch post treatment.
T-Scan Occlusal Analysis technology can be used in everyday clinical practice for
initial patient exam, locating painful occlusal contacts, abfraction management, prosthetic case finishing, TMD treatment without appliances, post-orthodontic occlusal assessment, and for reducing friction during excursion in order to provide necessary maintenance for occlusal disorders.
Joint Vibration Analysis or JVA™ (BioResearch Inc. Milwaukee, USA), enables the clinician in accurately diagnosing the Temporomandibular Joint Disorders by recording the vibrations produced as the condyle moves against the articular eminence and then translates these signature vibrations into the numeric measurements.
JVA is based on the principle that greater the friction, greater the vibration produced in the temporomandibular joint, as different pathologies of the TMJ such as inflammation, edema, partial and complete displacements of the disk, degeneration and perforations of the disk as well as degeneration of the condyle itself, which will each have a unique, signature vibration, that can be objectively measured.
ElectroMyoGraphy or EMG™ (BioResearch Inc. Milwaukee, USA), records the level of muscle activity at rest and during movements of the mandible. Electromyography (EMG) is an electro-diagnostic technique for evaluating and recording the electrical activity produced by masticatory muscles in microvoltages.
EMG shows the symmetry, synergy and timing of muscles working in pairs. It also synchronises with the T-Scan to provide measurable data of muscle activity produced when the patient bites on the occlusal sensor, providing valuable information of occlusal force data and muscle hyperactivity during closures and excursive movements.
Digital Diagnostics such as T-Scan Occlusal Analysis, Joint Vibration Analysis and ElectroMyoGraphy have revolutionised the way dentistry is practiced by providing the clinicians with objective, quantifiable, dynamic, visual data in real-time, for better treatment planning and clinical outcome.
These quantifiable diagnostics technologies can help the clinician to objectively reach to the cause of gnathlogical disorders instead of subjectively treating symptoms.