Chung S C, Kim Y K, Kim H S
Dept. of Oral Medicine and Oral Diagnosis, College of Dentistry and Dental Research Institute, Seoul National University, 28-2 Yunkeun-Dong, Chongro-Ku 110-744, Seoul, Korea.
Cranio. 2000 Apr;18(2):92-7. doi: 10.1080/08869634.2000.11746119.
The purpose of this study was to investigate the prevalence of nocturnal bruxism, the characteristics of bruxofacets, and the reduction of symptoms in temporomandibular disorder (TMD) patients. The study involved the observation of bruxofacets on a stabilization splint. Twenty-six patients (22 women and 4 men, 16-54 years of age) with signs and symptoms of TMD were given an initial examination before using a splint, and then at intervals of one, three, six and ten weeks after a stabilization splint was first used. In 88% of the patients (n = 23) active shiny facets or scratches caused by nocturnal bruxism appeared on the occlusal surface of splints within ten weeks. In 52% of the 23 patients these facets were created by bilateral mandibular excursions, in 35% by small lateral movements, and in 13% by unilateral excursions. Subjective pain and the Craniomandibular Index in patients had decreased after ten weeks (p < 0.001), but a reduction of symptoms did not differ according to the patterns of the bruxofacets. It was concluded that most TMD patients have a parafunctional habit, namely bruxism. Further research is needed to produce more convincing evidence of a true cause-and-effect relationship between nocturnal bruxism and TMD.
本研究的目的是调查夜磨牙症的患病率、磨牙小面的特征以及颞下颌关节紊乱病（TMD）患者症状的减轻情况。该研究包括观察稳定咬合板上的磨牙小面。26例有TMD体征和症状的患者（22名女性和4名男性，年龄16 - 54岁）在使用咬合板前进行了初步检查，然后在首次使用稳定咬合板后的1周、3周、6周和10周时进行检查。在88%的患者（n = 23）中，由夜磨牙症导致的活跃发亮小面或划痕在10周内出现在咬合板的咬合面上。在这23例患者中，52%的小面是由双侧下颌运动形成的，35%是由小的侧向运动形成的，13%是由单侧运动形成的。10周后患者的主观疼痛和颅下颌指数有所下降（p < 0.001），但症状的减轻情况在磨牙小面的模式方面并无差异。得出的结论是，大多数TMD患者有副功能习惯，即磨牙症。需要进一步研究以产生更有说服力的证据来证明夜磨牙症与TMD之间真正的因果关系。
