When Is A Root Canal Necessary?
Root canals are performed on teeth that have sustained nerve damage through extensive decay, fracture or trauma. If a cavity grows large enough, or if you suffer an injury to your tooth, it can damage the nerve, causing it to become irritated, inflamed, and eventually die. This can cause pain, swelling and serious infection. In cases of tooth necrosis, your tooth may sustain nerve damage with no visible signs or symptoms until your dentist discovers it.