Is it permissible to brush teeth while fasting?

Answer:

It is makrooh to use toothpaste during fasting. One may use the miswaak
during fasting.

Was salaam

Mufti E Desai
Fatwa Dept.

Original Source Link

This answer was collected from Askimam.org, which is operated under the supervision of Mufti Ebrahim Desai from South Africa.

Link