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It seems, as if patients with tinnitus show a large lateral deviation of the mandible between the retruded position of the mandible and the intercuspal position, there might be a chance to influence the bothersome sound. A panoramic X-ray easily confirms or rejects the presence of a vertical temporomandibular joint condylar asymmetry. At an asymmety the lateral deviation of the mandible mostly occurs in the direction towards the “shorter” condyle side with that side condyle being forced upwards and backwards in the intercuspal position.
A stabilization splint fabricated in the correct mandibular position i.e. when the position is guided by the “higher” condyle and thereby making the splint thicker on the “shorter” condyle side and thus compensating for what is missing in vertical condylar dimension might be one solution to try. The splint is to be worn as much as possible. An immediate response is also most often not to be expected.
Thinking back of many patients my experience has been that many patients do not immediately feel a difference regarding their tinnitus. However , faithfully wearing the splint for a couple of weeks to months many patients have reported definitive relief. If so, the permanent solution of their problem may be to establish an oral stability via additional dentistry.