实时可视化刷牙指导数字设备的有效性：一项随机对照试验。
Effectiveness of a digital device providing real-time visualized tooth brushing instructions: A randomized controlled trial.
机构信息
Department of Preventive Services, Kyoto University School of Public Health, Kyoto, Japan.
Kyoto University Health Service, Kyoto, Japan.
出版信息
PLoS One. 2020 Jun 25;15(6):e0235194. doi: 10.1371/journal.pone.0235194. eCollection 2020.
INTRODUCTION
The aim of this trial was to investigate whether a digital device that provides real-time visualized brushing instructions would contribute to the removal of dental plaque over usual brushing instructions.
METHODS
We conducted a single-center, parallel-group, stratified permuted block randomized control trial with 1:1 allocation ratio. Eligibility criteria included people aged ≥ 18 years, and exclude people who met the following criteria: severely crowded teeth; using interdental cleaning implement; having external injury in the oral cavity, or stomatitis; having less than 20 teeth; using orthodontic apparatus; visited to a dental clinic; having the possibility of consulting a dental clinic; having a dental license; not owning a smartphone or tablet device; smoker; taken antibiotics; pregnant; an allergy to the staining fluid; and employee of Sunstar Inc. All participants received tooth brushing instructions using video materials and were randomly assigned to one of two groups for four weeks: (1) an intervention group who used the digital device, providing real-time visualized instructions by connection with a mobile application; and (2) a control group that used a digital device which only collected their brushing logs. The primary outcome was the change in 6-point method plaque control record (PCR) score of all teeth between baseline and week 4. The t-test was used to compare the two groups in accordance with intention-to-treat principles.
RESULTS
Among 118 enrolled individuals, 112 participants were eligible for our analyses. The mean of PCR score at week 4 was 45.05% in the intervention group and 49.65% in the control group, and the change of PCR score from baseline was -20.46% in the intervention group and -15.77% in the control group (p = 0.088, 95% confidence interval -0.70-10.07).
CONCLUSIONS
A digital device providing real-time visualized brushing instructions may be effective for the removal of dental plaque.
简介
本试验旨在研究提供实时可视化刷牙指导的数字设备是否有助于清除牙菌斑，优于常规刷牙指导。
方法
我们进行了一项单中心、平行组、分层区组随机对照试验，分配比例为 1:1。纳入标准包括年龄≥18 岁的人群，排除符合以下标准的人群：牙齿严重拥挤；使用牙间清洁工具；口腔有外伤或口炎；少于 20 颗牙齿；使用正畸装置；就诊于牙科诊所；有咨询牙科诊所的可能；有牙科执照；没有智能手机或平板电脑设备；吸烟者；服用抗生素；孕妇；对染色液过敏；Sunstar Inc. 的员工。所有参与者均接受视频材料的刷牙指导，并随机分为两组，持续四周：（1）干预组使用数字设备，通过连接移动应用程序提供实时可视化指导；（2）对照组使用仅收集刷牙记录的数字设备。主要结局为基线至第 4 周时所有牙齿 6 点菌斑控制记录（PCR）评分的变化。根据意向治疗原则，采用 t 检验比较两组间的差异。
结果
在 118 名入组的个体中，有 112 名参与者符合我们的分析条件。干预组第 4 周时 PCR 评分的平均值为 45.05%，对照组为 49.65%，从基线到第 4 周 PCR 评分的变化在干预组为-20.46%，在对照组为-15.77%（p = 0.088，95%置信区间-0.70-10.07）。
结论
提供实时可视化刷牙指导的数字设备可能对清除牙菌斑有效。
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