That's what the current guidance says. However my cardiologist said he prefers me to take antibiotics before any dental procedure, so I take it before fillings as well. My dentist agrees with my cardiologist and wants me to take it for any procedure.Thank you everybody. My dentist said no antibiotics before a filling - only begore cleanings. My cardiologist said antibiotics before all dental procedures. It is the bacteria in.our own mouths getting into our bloodstream during the procedures.