What is root canal treatment in several steps? Under what circumstances, root canal therapy is needed.

 What is root canal treatment in several steps? Under what circumstances, root canal therapy is needed.
What is the earliest and most important mission of dentistry? It is not to whiten and look good teeth; nor is it to set teeth or implant teeth; it is to cure toothache. When it comes to toothache, many people's nerves are like being pinpointed by small needles, but thinking about it may cause physiological and psychological aversion and fear. Why is toothache so intense? First, pain itself is a feeling that can not be seen and touched by the signal transmitted to the brain after a bad nerve stimulation. A toothache is a direct pulp pain, and a green passage goes directly to the brain, so the intensity is much higher than that of ordinary skin trauma. It is also because...
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