Adding Technology to Diagnostic Methods

Adding Technology to Diagnostic Methods

John C. Radke, BM, MBA (BioResearch Associates, USA)
DOI: 10.4018/978-1-5225-1903-4.ch006


Adding technology to clinical diagnosis improves patient care, because objective measurements enhance the patient's report of symptoms and the observations made during an examination. The combination of multiple tests has universally been acknowledged to improve diagnostic sensitivity and specificity, as well as add value to treatment effectiveness monitoring and treatment outcomes. This chapter discusses four dental technologies that objectively measure differing masticatory functions: Surface Electromyography, Magnet-Based 3-Dimensional Electrognathography, Temporomandibular Joint Vibration Analysis, and T-Scan Computerized Occlusal Analysis. Each technology is presented with examples of its output data recorded from both an asymptomatic patient and one demonstrating masticatory system dysfunction. An included case report illustrates how combining these technologies can therapeutically improve a symptomatic Occluso-Muscle Disorder patient's diagnosis and treatment. Finally, recommendations are made that Dental Medicine accept these technologies as an indispensable part of modern clinical practice, so that resistance to their implementation will no longer inhibit their use.
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There are three types of data collection methods used in healthcare to gather information for research, for diagnostic purposes, or to monitor treatment outcomes. They are:

  • Self Report (Patient History).

    • o

      Type of data: Subjective

  • Observation (Clinical Examination).

    • o

      Type of data: Subjective/Objective

  • Bio-Physiologic Measurement (BPM).

    • o

      Type of data: Objective/Subjective (Interpretation)

Of the above three methods, Biophysiologic Measurement is the most quantifiable (e.g. blood pressure, heart rate, range of motion), since it incorporates modern measurement equipment, and currently takes full advantage of the latest advances in computer technology. Despite the advantages of incorporating digital technology in dental practice, resistance within the dental community discounts the application of technology to dental diagnosis and treatment monitoring (Reid and Greene, 2013; Greene, Klasser & Epstein, 2010; Greene, 2010a; Greene, 2010b). In the 21st century, this resistance is surprising especially considering that there exists a myriad of evidence -based information, published studies, and extensive dental literature, that demonstrate the efficacy of various technologies for specific dental applications.

However, a closer inspection of some published literature that appeared in1969, proposed a psychosocial and stress-related theoretical epidemiology of what was termed “Myofascial Pain Dysfunction Syndrome” (MPDS), that to date, has long fueled the debate as to the need, or lack thereof, to employ measurement technology when diagnosing Temporomandibular Disorders (TMD) (Greene, Lerman, Sutcher & Laskin, 1969). The biopsychosocial etiology minimizes the role that the breakdown of masticatory structures plays in the appearance of Temporomandibular Disorder symptoms, thereby eliminating the need to measure physical and structural function. This stress-related epidemiologic theory was further perpetuated into the early 1990s, when the so-called “Research Diagnostic Criteria” was first postulated as a valid method to diagnose TMD (Dworkin & LeResche, 1992). The ongoing belief within the dental profession that TMD is caused by emotional stress, explains why some clinicians and authors still resist using any bio-physiological measurements in clinical diagnosis. The “biopsychosocial” theorists’ rejection of virtually all physical diagnostic measurement, is based in their (incorrect) assumption that TMD has no causative physical structural basis. It is interesting to note that resistance to technology-aided TMD diagnosis is maintained philosophically, despite there being a complete lack of reproducible physical data to support these biopsychosocial theories. Alternatively, the dental literature does contain many studies that detail the benefits that technology offers to patients who present with Temporomandibular Disorders, some of which will be described within this chapter. While scientific honesty requires acknowledging conflicting or competing theories, it can be a difficult pill to swallow.

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