12821f0f_hat_DO_NOT_indicate_root_canal__Symptom
[0] 4. [Further information] This type of pain is usually indicative of a periodontal abcess not a root canal problem. Often the endodontist or dentist will take a radiograph (x-ray) of the area and perform a series of tests to see if the tooth's pulpul tissue is responding normally or not. A normal response (no pain from the pulpul tissue) means the problem is most probably periodontal and not endodontic in nature. [Symptom] 
You have swelling on the gum area around the tooth. The tooth may be sensitive to touch however there is no pain when drinking hot or cold liquids. The pain may be severe but when you brush or poke around the area the pain is relieved.
Symptoms that DO NOT indicate root canal
Symptom