Koca M F, Acikgöz G, Dundar C, Kirtiloglu T
Department of Periodontology, Faculty of Dentistry, Ondokuz Mayıs University, Samsun, Turkey.
Department of Public Health, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey.
Niger J Clin Pract. 2020 Oct;23(10):1395-1400. doi: 10.4103/njcp.njcp_365_19.
To investigate of effects of using phase-contrast video technique on education in oral hygiene training. This one blind, parallel randomized controlled trial was conducted in a tertiary clinic. Fifty-three patients who presented to the orthodontics department aged 12-20 years were divided into two groups randomly by computer-generated assigned codes to receive oral hygiene education. The participants were blinded to type of education method. Before orthodontic therapy, the control group was trained only by the conventional method, while the test group was trained by phase-contrast video microscopy method in addition to conventional method. Some images and videos of moving microorganisms in dental plaque were shown to the patients in test group on a computer monitor.
The bacterial count, plaque index, and gingival index scores were compared. Measurements were obtained in baseline and follow-ups which were repeated with 1-month intervals after the training.
The plaque index scores (1.05 ± 0.1 vs. 1.43 ± 0.2; P < 0.001) and gingival index scores (0.90 ± 0.1 vs. 1.14 ± 0.2; P < 0.001) in test group was statistically lower than those in control group at the end of the study. The gingival index scores reduced by 39% in test group vs. 14% in control group. The number of bacteria significantly decreased in the group trained with phase-contrast video microscope technique (8,059,133 ± 3016 vs. 10,830,600 ± 4919; 0.018).
The training with phase-contrast microscopy has a more positive effect than the traditional method in oral hygiene education.
探讨使用相衬视频技术在口腔卫生培训教育中的效果。本单盲、平行随机对照试验在一家三级诊所进行。53名年龄在12至20岁之间到正畸科就诊的患者通过计算机生成的分配代码随机分为两组，接受口腔卫生教育。参与者对教育方法的类型不知情。在正畸治疗前，对照组仅采用传统方法进行培训，而试验组除传统方法外还采用相衬视频显微镜法进行培训。试验组的患者在电脑显示器上观看了牙菌斑中移动微生物的一些图像和视频。
比较细菌计数、菌斑指数和牙龈指数评分。在基线和随访时进行测量，随访在培训后每隔1个月重复进行。
在研究结束时，试验组的菌斑指数评分（1.05±0.1对1.43±0.2；P<0.001）和牙龈指数评分（0.90±0.1对1.14±0.2；P<0.001）在统计学上低于对照组。试验组牙龈指数评分降低了39%，而对照组降低了14%。使用相衬视频显微镜技术培训的组中细菌数量显著减少（8,059,133±3016对10,830,600±4919；P=0.018）。
在口腔卫生教育中，相衬显微镜培训比传统方法具有更积极的效果。
