The Reality
What Is Actually Happening Inside Your Tooth
Inside every tooth, beneath the hard outer layers of enamel and dentin, there is a soft inner space called the pulp. The pulp contains nerves, blood vessels, and connective tissue. In a healthy tooth, the pulp is doing its job quietly and you never think about it. When the pulp becomes infected or inflamed, from deep decay, a crack in the tooth, or trauma, things can get uncomfortable fast.
An infected pulp creates pressure inside the tooth that has nowhere to go. That pressure is what causes the throbbing, the sensitivity to temperature, the pain when you bite down, and in some cases the kind of ache that wakes you up at night. The infection can also spread beyond the tooth into the surrounding bone and tissue if it is not treated, which is why we take these situations seriously when patients call us.
Root canal therapy removes the infected or damaged pulp, cleans and shapes the inner canal of the tooth, and seals it to prevent recontamination. That means your tooth stays in your mouth, your bite is preserved, and the source of the infection and the pain is gone.