Q. See question above. How about using baking soda or similar powders to brush teeth?
A. If it’s put on dry without making a paste beforehand or you make a paste before Shabbos it would be permitted.
Yet only a Shabbos Toothbrush may be used.
Regarding tooth powder, besides the possible Shabbos concern, it should not be used even in middle of the week, because of
potential kashrus concerns.
Rabbi A. Bartfeld as revised by Horav Y. Hirshman, Horav Dovid Pam, Horav Aharon Miller and Horav Chanoch Ehrentreu, Horav Kalman Ochs, and Horav Dovid Bartfeld consulting in need Horav Hagaon Rav Yitzchak Berkowitz Shlit’a
Important Numbers
