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News Bulletin : ADA News Bulletin October 2011
27 OCTOBER 2011 feedback devices may provide valuable information when used in a research setting, and our many publications in international peer- reviewed journals in the field demonstrate that we have spent many years using some of these devices to improve our understanding of form and function in the jaw motor system both in health and disease. An important general finding from all of our studies has been the variability that exists both within and between individuals in the data from these devices and this is also acknowledged in the paper by Cooper. 1 However, this high variability likely contributes to the very poor sensitivities and specificities that have been demonstrated for diagnostic tests based on these technological devices.2 Before any diagnostic test can be useful in a clinical setting it needs to demonstrate validity (i.e., it measures and helps diagnose what it claims to), reliability (i.e., it gives the same result with repeated measures), sensitivity and specificity. Sensitivity means the ability to identify patients in a patient population. Specificity means the ability to identify non-patients in an asymptomatic population. Unfortunately, whilst EMG and jaw tracking are valuable research tools, they have not demonstrated usefulness as diagnostic tests for TMDs. 2,3 Further research is needed to determine whether the combination of these instruments with other examination variables may help distinguish better TMD subgroups. We would welcome working with individuals, who advocate these devices for clinical use, to design and undertake a study to help answer this question. Thus, the way that these instruments are currently used does not aid in the diagnosis of temporomandibular disorders, adds expenses to patient care and may result in a narrow focus of what are often complex multidimensional problems. Finally, we wish to take this opportunity to outline the Australian and New Zealand Academy of Orofacial Pain (ANZAOP). It was formed in 1989 as a sister academy to the American Academy of Orofacial Pain, the European Academy of Craniomandibular Disorders, the Ibero-Latin American Academy of Craniomandibular Disorders and Orofacial Pain, and the Asian Academy of Craniomandibular Disorders. The official journal of the ANZAOP is the Journal of Orofacial Pain. The ANZAOP is comprised of clinicians and academics across Australia and New Zealand and promotes establishing and advancing the scientific principles on which clinical practice should be based. Whilst the website (http://www.anzaop.org/) is currently being upgraded, the current site has details on joining the Academy. Chris Peck Dean Faculty of Dentistry The University of Sydney Greg Murray Associate Professor Faculty of Dentistry The University of Sydney REfEREnCES 1. Cooper B. Temporomandibular Disorders: A position paper of the International College of Cranio-Mandibular Orthopedics (ICCMO). The Journal of Craniomandibular Practice 2011;29:237-44. 2. Lund JP, Widmer CG, Feine JS. Validity of diagnostic and monitoring tests used for temporomandibular disorders. J Dent Res 1995; 74:1133-43. 3. Klasser GD, Okeson JP. The clinical usefulness of surface electromyography in the diagnosis and treatment of temporomandibular disorders. J Am Dent Assoc 2006; 137:763-71. EdITOR’S COMMEnT A number of letters to the Editor have been received following publication of the article ‘Assessment and management of temporomandibular disorders’ in the ADA Inc. News Bulletin, July 2011. Unfortunately, due to space restrictions it is not possible to publish all the letters on these pages. In view of this, the above have been selected to provide a balance of the views expressed. All correspondence is now closed on this subject. The Editor AUSTRALIAn dEnTIST e-nEWSLETTER Sir, The innovation with the sending out of the Australian Dentist ADA e-Newsletter is welcome. I thought the e-Newsletters dealing with Medicare CDDS issues are very opportune. Receipt of up-to-date information like this is invaluable and I would like the Editor to keep the service going. Kevin Casey Balgownie 2519 no false advice Please contact Garry Pammer, Alison Lacey or Heath Stewart on: Telephone (02) 9264 1111 Fax (02) 9264 1344 email email@example.com website clarkjacobs.com.au Dental specialists for over 20 years
ADA News Bulletin September 2011
ADA News Bulletin November 2011