Tooth-colored fillings don't require any extra attention. After the resin composite has been used to fill your decayed tooth, you can just brush and floss the region as usual. Make an appointment with your dentist twice a year for regular checkups and cleanings; x-rays should be done once a year. After receiving their new composite filling, some patients suffer sensitivity in the filling area. This is very natural and generally always goes away after a short period of time. Using a desensitizing toothpaste until the sensitivity has gone away can help some patients. If hot or cold liquids are causing the area to be sensitive, we also recommend avoiding them for the time being.