Investigation by questionnaire for disk anterior displacement with reduction of the temporomandibular joint

Abstract

108 patients with reciprocal click who were subjected to no treatment or only medication were followed by questionnaire for 2 or 5 years. The results were as follow;
(1) The rates of progress of closed lock were 17.4% (2-year followed group) and 19.4% (5-year followed group).
(2) The click disappearance rates were 34.8% (2-year followed group) and 25.8% (5-year followed group).
(3) Painfull click at the initial examination developed closed lock more frequently than painless click.
(4) 17.6% (2-year followed group) and 6.9% (5-year followed group) of the patients who had painless click complained of joint pain.