How long it takes to brush a tooth after filling depends on what is used to fill the tooth, resin fillings can be brushed after filling, while others require 24 hours before brushing. If the patient is using silver amalgam fillings, because silver amalgam needs more than 24 hours to be fully cured, so it must be 24 hours before brushing. If the patient is using glass ionomer to fill the tooth, it also takes 24 hours for the filling to fully cure, so it should be brushed only after one day. If the patient uses a light-curing resin to fill the tooth, because this material is already cured when filling, so you can brush your teeth immediately after filling. In conclusion, it is important to pay attention to oral hygiene after filling and brush your teeth sensibly under the advice of your physician.