Q. Rabbenu Shalita’a. Can one use on Shabbat a simple total plastic brush that does not absorb any water for brushing one’s teeth? How about just a dental stick with a pointy rubber head?
A. Indeed both could be used, including also toothpicks.
Rabbi A. Bartfeld as revised by, Horav Dovid Pam, Horav Aharon Miller, Horav Chanoch Ehrentreu and Horav Kalman Ochs Shlit’a