Any tips? What should I expect during a root canal?

Painless. Root canal therapy may sound like an oxymoron, but new techniques and advanced anesthesia are making it a reality for many patients. It helps you to eliminate future complications and improve your general health and quality of life.
No pain. The dentist will anesthetize the tooth. Then place a dental dam isolating the tooth he is working on. He will then begin instrumenting and cleaning out the canal or canals. Several radiographs (x-rays) may be taken. Then the canal will be filled and either a temporary filling or the final filling will be placed.