Is it safe to take amoxicillin after root canal procedure?

We always have a perception that if there is an infection, or even to prevent one, doctors would automatically prescribe antibiotics. How did we get this thinking that we should, for example, take amoxicillin after a root canal procedure? Root canal procedure is needed when you experience pain from decaying tooth. You can visit this dental clinic, root canal treatment cost by this dentist in Ryde, NSW is affordable and the procedure is safe and effective. Pain after the root canal is normal. But is it safe taking antibiotics such as amoxicillin after the procedure?