There are many things that can damage the pulp or nerve of the tooth. Often a patient will feel pain or other symptoms that alert them to needing root canal treatment, but many times there are no symptoms or warnings. The following are some of the more common reasons for needing root canal treatment. Pain: A toothache is the most common symptom of needing a root canal. The pain that comes from a tooth needing a root canal is fairly specific.
1 Cooked chicken will usually stay good for 3 to 4 days in the fridge and 4 months in the freezer.  How to tell if raw chicken is bad? The best way is to smell and look at the chicken: signs of bad chicken are a sour smell, dull color and slimy texture; discard any chicken with an off smell or appearance.
Raw chicken should not be used if it has been in your fridge more than 24 hours. Cooked chicken (regardless of how it is prepared) shouldn't be eaten after 48 hours in the fridge.