The Clinical Study of Low Power Laser Treatment for the Patients of Temporomandibular Joint Disorder:For Type IV Patients
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概要
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Acupuncture to the meridian point of "Gekan" has been used to treat the patients of temporomandibular joint disorder. In recent studies (Arao et al 1990, 1991, 1992, 1994), instead of using a needle, the author irradiated several times with a low power laser (Nd: YAG at 350mW) for the Type I, Type II and Type III patients with closed-lock. This relieved the pain somewhat, but since the treatment results were determined by the subjective judgement of the patient, the authors evaluated the results objectively. We used thermography to evaluate symptomatic change, and using the Laser Doppler Flowmeter (LDF), we measured the surface blood flow of the skin in the area of the temporomandibular joint.<BR>In this study, for the Type IV patients, we used the low power laser. Each patient was treated by low power laser for "Gekan" for 15 minutes from the first examination. After the pain of the temporomandibular region was remedied, we manipulated the mandible. The results were that in several months, the symptoms of temporomandibular disorder ceased. But from the MRI findings, the disk position and the shape of mandibular head did not change.<BR>These results suggest that the low power laser treatment for the patients of temporomandibular joint disorder is useful not only for the Type I, Type II, Type III parients with closed-lock patients, but also for Type IV patients.<BR>We suggest that it is necessary to continue this line of research for a long period, and to treat a greater number of cases.<BR>(J. Jpn. Soc. Laser Dent. 7: 72-82, 1996 Reprint requests to Dr. Arao)
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