The endodontist will create a medical history, where he will ask you, among other things, if you suffer from diabetes, ulcers, allergies or heart disease. All this for your safety. It may also be that when a local anesthetic is administered, you may feel some numbness in some areas of your face, but relax, this is totally normal and will also disappear after a while. In some cases Your teeth, after root canal treatment, may be somewhat sensitive to the touch, but all depending on your evolution and state of health. This sensation may disappear after a few days. If such a level of extreme sensitivity lasts a long time than suggested, the dentist will advise you. will prescribe some medications that will relieve your pain. Remember that the techniques when performing any root canal are much more modern than those of several decades ago, ensuring not only a much faster and less disturbing procedure, but at the same time it will give you the opportunity to feel much less pain than in the procedures that were previously performed. One of the most important things about a root canal is that you will finally feel relief from the pain that is caused by the infection that invades your tooth. But in the event that after the intervention you still have a lot of pain, consult with the dentist or your doctor what medication you can take. The true objective of endodontics, as we have already said, is to save your tooth and maintain the beauty of your tooth. smile. There is a high success rate in this particular type of treatment, ensuring that along with proper oral hygiene, your treated tooth can last a lifetime without problems.