Kirveskari P, Le Bell Y, Salonen M, Forssell H, Grans L
Institute of Dentistry, University of Turku, Finland.
J Oral Rehabil. 1989 Jan;16(1):21-6. doi: 10.1111/j.1365-2842.1989.tb01313.x.
Sixty-two dental students judged not to be in need of treatment for craniomandibular disorder (CMD) were randomly divided into two groups, one receiving occlusal adjustment and the other mock adjustment. A double-blind study design was applied. After 2 years of education in dentistry, including courses in stomatognathic physiology, the increase in the subjective symptoms of CMD was significantly greater in the placebo control group than in the treatment group. The difference between the groups in the increase of sites tender to palpation was less clear, showing only a trend. However, the increase was statistically significant within the placebo group but not within the treatment group. Prophylactic occlusal adjustment thus appears to be effective in reducing the occurrence of symptoms of CMD, and possibly also the occurrence of clinical signs.
62名被判定无需接受颅下颌关节紊乱症（CMD）治疗的牙科学生被随机分为两组，一组接受咬合调整，另一组接受模拟调整。采用双盲研究设计。在接受了两年的牙科教育，包括口腔颌面部生理学课程后，安慰剂对照组CMD主观症状的增加显著高于治疗组。两组之间触诊压痛部位增加的差异不太明显，仅显示出一种趋势。然而，安慰剂组内的增加具有统计学意义，而治疗组内则没有。因此，预防性咬合调整似乎对减少CMD症状的发生有效，也可能对临床体征的发生有效。
