Clinical Statistical Study of the Patients with Temporomandibular Disorders at the Departments of Oral Medicine and Oral Surgery in Kyushu Dental University Hospital

Abstract

We surveyed retrospectively 305 patients with temporomandibular disorders (TMD) who visited the Departments of Oral Medicine and Oral Surgery at Kyushu Dental University Hospital between April 2016 and March 2017. Sex, age, diagnostic criteria of TMD, treatment method, treatment duration and treatment outcome were statistically analyzed compare to 365 patients between April 1995 and March 1996 in our hospital. The age and the treatment duration of patients in 2016 showed significantly older and shorter compared with those of the patients in 1995-1996. In 2016 patients, myalgia of masticatory muscles was the most common diagnostic criteria. Although the conservative treatment account for all treatment methods in 2016 was significantly lager compared with that in 1995-1996, the non-effective cases account for all cases tend to increase.