A root canal procedure treats damaged or decaying teeth. If you’re wondering how to know you need a root canal, let’s look at some of the most basic signs.

How To Know You Need a Root Canal

A root canal is the name of a dental procedure that repairs and saves an infected or badly decayed tooth. It’s necessary when the tooth’s pulp, composed of nerves and vessels, becomes infected or damaged. During treatment, a dentist or oral surgeon will remove the pulp and clean and seal the inside of the tooth. Some people fear that their root canal will be uncomfortable or painful, but the procedure is typically no more painful than having a cavity filled. If you’re experiencing any of the telltale signs of deep tooth decay, you shouldn’t delay treatment. If you’re wondering how to know you need a root canal, let’s look at some common indicators.

Persistent Pain

If you’re experiencing persistent, sharp pain, you’re a possible candidate for a root canal. The pain might bother you all the time or come in repetitive bursts. The pain is likely to originate deep in the bone of your tooth. Alternatively, you might feel it in your face, your jaw, or even your other teeth. Tooth pain can have multiple causes. Some other possibilities include:


  • gum disease
  • a cavity
  • referred pain from a sinus infection or another problem
  • a damaged filling
  • an impacted tooth that may be infected


Regardless of the cause, it’s important to schedule an appointment with your dentist as soon as possible. Early diagnosis and treatment for tooth pain will lead to a more optimistic outcome.

Sensitivity to Heat and Cold

Does your tooth hurt when you’re sipping on a cup of steaming hot coffee? What about when you eat ice cream or drink an ice-cold glass of water? The sensitivity could feel like a dull ache or a sharp, stabbing pain. If this sensitivity lingers for an extended period, you might require a root canal. Some people’s teeth are more sensitive than others. If this is the case, special sensitivity toothpaste could help. But if the pain you’re experiencing is sudden or intense, it can be an indication that the blood vessels and nerves in your tooth are infected or damaged.

Tooth Discoloration

Another way to know you need a root canal is tooth discoloration. An infection of the pulp can lead to a discolored tooth. Trauma to the tooth or the breakdown of internal tissue can damage the roots and give the tooth a grayish-black appearance. This discoloration is easier to see in a front, or anterior, tooth. A tooth might abruptly discolor for any number of reasons—amongst them, decaying or damaged tooth pulp.

Swollen Gums

Swollen gums can be a sign of an issue that requires a root canal. The swelling, like any sensitivity, can be constant or occasional. The swollen area might be tender or painful to the touch. This swelling results from the acidic waste products of dead pulp tissues, leading to swelling outside the root tip area. You might also notice a small pimple forming on your gums. This is called a gum boil, parulis, or abscess. The pimple can ooze pus from the infection, resulting in an unpleasant taste in the mouth and bad breath.


Have you noticed any of the signs of decayed or damaged tooth pulp? Have a knowledgeable, reliable professional examine your tooth. For root canal treatment in Riverview, Florida, come visit Dr. Castellano. You’ll leave with a fixed tooth and a bright, winning smile.

By chris castellano August 20, 2025
Root canal failed? Learn how an apicoectomy in Riverview, FL can save your tooth. Call 813-672-1917 for expert care today.
By chris castellano August 18, 2025
What are Immediate Dental Implants and How Do They Work?
b
By chris castellano August 16, 2025
"Discover why root canals may fail and how Dr. Chris A. Castellano, D.M.D. in Riverview, FL can help with retreatment, retreatment alternatives, and expert care."
Man pondering about fake dentist reviews.
By chris castellano August 5, 2025
learn common tactics dentist use to fool the public with fake dental reviews. Learn how to spot fake dental reviews
Aspen Dental clinic exterior with blue accents, signage, and a parked black car on a sunny day.
By chris castellano August 2, 2025
Tired of surprise bills and rushed care at Aspen Dental? Discover why Riverview patients are switching to personalized, honest care at Chris A. Castellano DMD PA.
d
By chris castellano August 2, 2025
This post summerizes the technique used by dental insurance companies to distroy dentistry working in alliance with chain dentals and dso's.
A blog series about the corrupting trends and corporate insurance takeover of dentistry
By chris castellano July 6, 2025
DSOs dominate modern dentistry—but at what cost? Discover how corporate chains replaced local care and why Riverview FL patients should stay informed.
A blog series about the corrupting trends and corporate insurance takeover of dentistry
By chris castellano July 6, 2025
Independent dentistry offers honest, high-quality care—but DSOs are trying to crush it. Here's how Riverview FL patients can still choose personalized treatment.
A blog series about the corrupting trends and corporate insurance takeover of dentistry
By chris castellano July 6, 2025
Fake reviews, buried feedback, and algorithm manipulation are distorting public trust in dental care.Find out how reputation laundering props up unethical practices.
A blog series about the corrupting trends and corporate insurance takeover of dentistry
By chris castellano July 6, 2025
Insurance companies reward speed over quality. Learn how volume-based care and DSO partnerships devalue patient treatment. Explained by a Riverview FL dentist.
More Posts