Sometimes a tooth is more complex than expected, or the infection is too significant to complete treatment in one appointment. If that happens, don’t worry. It doesn’t mean the procedure has failed.
Your dentist or endodontist may place a medication inside the tooth and a temporary filling to protect it until your next visit.
The most important thing is returning for your scheduled appointment. Finishing the treatment helps protect your tooth and gives it the best chance for long-term success.