Lees A, Rock W P
School of Dentistry, St Chads Queensway, Birmingham B4 6NN, UK.
J Orthod. 2000 Dec;27(4):323-8. doi: 10.1093/ortho/27.4.323.
The objective of the study was to compare the effectiveness of written, videotape, and one-to-one instruction upon the knowledge, oral hygiene standard, and gingival health of subjects undergoing orthodontic treatment with a lower fixed appliance. Subjects for whom fixed appliances had been fitted recently were divided randomly into three groups of 21, 22, and 22, respectively. Group 1 received written oral hygiene instruction, group 2 a specially made videotape, and group 3 saw a hygienist for one-to-one instruction. Results were assessed in terms of improvement in knowledge concerning oral hygiene procedures, and of plaque and gingival index scores. Analysis of variance revealed no significant main effects or interactions at P = 0.05, although the difference in the plaque index scores before and after instruction was close to significance.
该研究的目的是比较书面指导、录像带指导和一对一指导对使用下颌固定矫治器进行正畸治疗的受试者的知识、口腔卫生标准和牙龈健康状况的效果。最近安装了固定矫治器的受试者被随机分为三组，分别为21人、22人和22人。第1组接受书面口腔卫生指导，第2组观看特制录像带，第3组由保健员进行一对一指导。根据口腔卫生程序知识的提高以及菌斑和牙龈指数评分来评估结果。方差分析显示，在P = 0.05时，没有显著的主效应或交互作用，尽管指导前后菌斑指数评分的差异接近显著水平。
