Agrawal Santosh Kumari, Dahal Sirjana, Bhumika T V, Nair N Sreekumaran
Department of Public Health Dentistry, BPKIHS, Dharan, Nepal.
Public Health Evidence South Asia, Manipal University, Karnataka, India.
J Nepal Health Res Counc. 2019 Jan 27;16(41):364-371.
Toothbrushes play an essential role in personal oral hygiene by effective plaque removal.However, they get heavily contaminated by bacteria, viruses, yeasts, and fungi which may originate from the oral cavity after every use as well as from the environment where they are stored. This systematic review was conducted to identify various decontamination interventions attempted scientifically and it summarizes the efficacy of each. Meta-analysis illustrated that the use of Ultra-violet rays and Microwave had a significant effect on reduction of the microbial count of a used toothbrush with a mean difference of -2.61 and CI (-4.66,-0.76) with I2=98%. When compared with non-active treatment group, the natural agents (garlic, green tree and tea-tree oil) proved to sterilize the toothbrushes effectively with mean difference of -483.34, CI (-914.79, -51.88) and I2=100%.In contrast, chlorhexidine showed the insignificant result with a mean difference of -347.55 and CI (-951.90, 256.80) with I2=100%. The evidence from this review suggests that decontaminating toothbrush reduces bacterial load. Toothbrushes exposed to radiation and natural agents proved to sanitize them effectively but chlorhexidine rendered insignificant results. Keywords: Chemical agent; disinfection; radiation; microbial load; natural agent; toothbrush.
牙刷通过有效去除牙菌斑在个人口腔卫生中发挥着重要作用。然而，每次使用后，它们会被可能源自口腔以及储存环境的细菌、病毒、酵母和真菌严重污染。本系统评价旨在确定科学尝试的各种去污干预措施，并总结每种措施的效果。荟萃分析表明，使用紫外线和微波对减少使用过的牙刷的微生物数量有显著效果，平均差异为-2.61，置信区间为（-4.66，-0.76），I² = 98%。与非活性治疗组相比，天然制剂（大蒜、绿花白千层和茶树油）被证明能有效消毒牙刷，平均差异为-483.34，置信区间为（-914.79，-51.88），I² = 100%。相比之下，洗必泰的结果不显著，平均差异为-347.55，置信区间为（-951.90，256.80），I² = 100%。本评价的证据表明，对牙刷进行去污可减少细菌载量。暴露于辐射和天然制剂的牙刷被证明能有效消毒，但洗必泰的结果不显著。关键词：化学制剂；消毒；辐射；微生物载量；天然制剂；牙刷
