In this six-week study, the efficacy of a sonic toothbrush (Sonicare) was compared with traditional manualbrushing in a setting where hygiene care was provided by caregivers.
在这六个星期的研究，疗效的声波牙刷(声波)与传统的手工刷在制定地方卫生保健提供了照顾。
3
This paper concluded manualbrushing adhesive workplace exhaust hood selection of the design provides a useful basis of data for similar workplace ventilation control with detoxification learn.