Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA 02115, USA.
Int J Environ Res Public Health. 2021 Dec 12;18(24):13123. doi: 10.3390/ijerph182413123.
This cross-sectional study aimed to examine the oral hygiene behaviors in the general population and identify factors affecting oral hygiene behaviors and plaque removal efficacy. A survey was distributed to patients through 11 dental practices in Japan, and each patient's plaque index score (PIS) was recorded. In total, 1184 patients participated (521 women and 660 men), with 84.04% using manual toothbrushes (MTBs) and 15.96% using electric toothbrushes (ETBs). ETB users had a significantly lower PIS compared to MTB users ( = 0.0017). In addition, a statistically significant difference in the PIS was detected in relation to the frequency of brushing per day (≥2 times) and time spent on brushing (≥1 min). Some MTB users spent less than 1 min brushing, while all ETB users spent at least 1 min brushing, and extended brushing periods significantly improved the PIS for the MTB users. MTB users tend to replace brush heads more frequently than ETB users, and the frequency of replacement affected the PIS significantly ( < 0.01) for the MTB users. The status of dental treatment (first visit, in treatment versus recall) also significantly affected the PIS ( < 0.01). The ETB was more effective than the MTB in terms of better plaque removal and reduced frequency of brush head replacement.
本横断面研究旨在调查普通人群的口腔卫生行为，并确定影响口腔卫生行为和菌斑去除效果的因素。通过日本的 11 家牙科诊所向患者发放调查问卷，并记录每位患者的菌斑指数评分（PIS）。共有 1184 名患者参与了此项研究（女性 521 名，男性 660 名），其中 84.04%使用手动牙刷（MTB），15.96%使用电动牙刷（ETB）。与 MTB 使用者相比，ETB 使用者的 PIS 显著更低（ = 0.0017）。此外，每天刷牙次数（≥2 次）和刷牙时间（≥1 分钟）与 PIS 之间存在统计学差异。一些 MTB 使用者的刷牙时间少于 1 分钟，而所有 ETB 使用者的刷牙时间均不少于 1 分钟，且延长刷牙时间显著提高了 MTB 使用者的 PIS。MTB 使用者更换刷头的频率高于 ETB 使用者，且更换频率对 MTB 使用者的 PIS 有显著影响（<0.01）。治疗状况（首次就诊、治疗中、复诊）也显著影响 PIS（<0.01）。在去除菌斑和减少刷头更换频率方面，ETB 比 MTB 更有效。
