Best dental clinic near me | Signs You Might Need a Root Canal Persistent tooth pain, sensitivity to hot or cold, swollen gums, or a darkened tooth could be signs that you need a root canal. You might also notice a small bump near the affected tooth or experience discomfort while chewing. Early treatment can save your natural tooth and prevent complications. At Dr. Akkshaya Dental & Aesthetics, we use advanced techniques to provide gentle and effective root canal therapy to relieve your pain and restore your smile.