Fushima K, Akimoto S, Takamot K, Kamei T, Sato S, Suzuki Y
Nihon Ago Kansetsu Gakkai Zasshi. 1989;1(1):40-50.
In order to examine the relationship between the incidence of temporomandibular joint (TMJ) disorders and the occlusal problems, epidemiological surveys regarding the signs of TMJ disorders (joint noise, pain and disturbance of mandibular movement) were carried out to 149 untreated patients (54 males and 95 females) with malocclusion. The results indicated as follows: 1) Incidence of TMJ disorders was 33.6% of total samples, 27.8% of males and 36.8% of females. 2) In symptomatic subjects, the most frequent sign of TMJ disorders was joint noise (76.0%), the second was joint pain (68.0%) and the third was disturbance of mandibular movement (38.0%). 3) The incidence of TMJ disorders increased after 8 years of age, while it decreased slightly from 15 to 18 years of age and showed high frequency after 19 years of age. It was suggested that these changes were related with the occlusal configurations such as the exfoliation followed by the eruption of permanent successors or the eruption of the third molars. 4) Symmetrical anterior cross-bite malocclusion showed low incidence of TMJ disorders. In posterior cross-bite malocclusion and mandibular lateral displacement case, however, the signs of TMJ disorders were found frequently. These results suggested that the lateral shift of mandibular head in fossa may relate with the appearance of TMJ disorders.
为了研究颞下颌关节（TMJ）紊乱症的发病率与咬合问题之间的关系，对149例未经治疗的错牙合患者（54例男性和95例女性）进行了关于TMJ紊乱症体征（关节弹响、疼痛和下颌运动障碍）的流行病学调查。结果如下：1）TMJ紊乱症的发病率在总样本中为33.6%，男性为27.8%，女性为36.8%。2）在有症状的受试者中，TMJ紊乱症最常见的体征是关节弹响（76.0%），其次是关节疼痛（68.0%），第三是下颌运动障碍（38.0%）。3）TMJ紊乱症的发病率在8岁后升高，在15至18岁时略有下降，19岁后频率较高。提示这些变化与咬合形态有关，如恒牙相继萌出或第三磨牙萌出导致的乳牙脱落。4）对称性前牙反牙合错牙合的TMJ紊乱症发病率较低。然而，在后牙反牙合错牙合和下颌侧方移位病例中，TMJ紊乱症的体征较为常见。这些结果提示，下颌头在关节窝内的侧向移位可能与TMJ紊乱症的出现有关。
