颞下颌关节紊乱综合征(ＴＭＪＤＳ)是临床常见的颞下颌关节疾病。多数学者倾向于因素理论(即牙合因素、精神因素、神经肌肉因素等)。近年来研究表明患病过程中有自身免疫反应参与。临床表现为关节疼痛、弹响和杂音,关节运动障碍包括开口度和开口型的改变。本文就20例由下颌第三 Temporomandibular joint disorder syndrome (TMJDS) is a common clinical temporomandibular joint disease. Most scholars tend to factor theory (ie, occlusal factors, mental factors, neuromuscular factors, etc.). In recent years, studies have shown that there is an autoimmune response involved in the disease process. Clinical manifestations of joint pain, snapping and murmur, joint movement disorders, including openness and open-type changes. This article on the 20 cases by the third jaw