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Formerly Henwood Family Dentistry

How to Know When You Might Need a Root Canal

A woman smiles while holding a clear teeth whitening tray. Text overlay reads: “How to Whiten Your Teeth at Home: Dentist-Approved Tips for a Brighter Smile—plus signs you may need more than whitening.”.

Tooth pain can be sneaky. It might start off as a dull ache or sensitivity to cold drinks, but what seems minor could actually be a warning sign of a deeper problem. At Pristine Family & Cosmetic Dentistry in San Antonio, we help patients catch these issues early—before they lead to more serious complications. One of the most common treatments for deeply infected teeth is root canal therapy, a procedure designed to save your natural tooth and stop pain at its source. But how do you know if a root canal might be in your future? Here’s what to watch for.

Ongoing or Severe Tooth Pain

Consistent, lingering tooth pain is often one of the clearest signals that something is wrong beneath the surface. If the pain worsens when you bite down, chew, or apply pressure, it could mean that the pulp—the innermost part of the tooth containing nerves and blood vessels—is inflamed or infected. This kind of discomfort typically doesn’t resolve on its own, and waiting too long can lead to even more pain or tooth loss. Root canal therapy can remove the infected tissue and bring lasting relief.

Sensitivity That Sticks Around

A little tooth sensitivity after an ice-cold drink or a hot slice of pizza is common. But when that sensitivity lingers long after the temperature trigger is gone, it may signal damage to the nerve inside your tooth. If you find yourself avoiding certain foods or drinks due to discomfort, it’s worth getting evaluated. Root canal treatment can address the internal issue and help preserve your tooth without the need for extraction.

Discoloration in a Single Tooth

If you notice that one of your teeth is turning a darker shade—gray, brown, or even black—it’s not just a cosmetic concern. This can be a sign that the inner pulp has died, often due to trauma or decay. Internal discoloration can’t be corrected with whitening treatments because the issue lies within the tooth, not on the surface. In these cases, a root canal is often the only way to restore health and prevent further damage.

Swollen or Tender Gums Near a Tooth

Inflamed gums around a particular tooth could be pointing to an infection that’s spread beyond the root. In some cases, this inflammation might be accompanied by a small bump or boil on the gum—an abscess. This is the body’s way of trying to fight off the infection, but it requires professional care. Left untreated, an abscess can worsen and even spread to other areas of the body. A root canal can stop the infection at its source and give your gums a chance to heal.

A woman appears to experience discomfort while biting into bread with peanut butter and jelly; a quote about root canal symptoms and tooth pain is displayed on the left side.

Pain When Eating or Touching the Tooth

If eating or even lightly tapping a specific tooth causes pain, it’s likely the nerve is compromised. This pain may feel deep and intense, often radiating to the jaw or face. While minor toothaches can come and go, pain that’s consistent and focused on one tooth usually requires attention. A root canal can remove the infected nerve and restore comfort.

A Chipped or Cracked Tooth

Accidents happen—whether it’s a fall, sports injury, or biting down on something hard. But even a small chip or crack can allow bacteria to reach the pulp. Without prompt care, this can lead to infection and inflammation inside the tooth. Sometimes, the damage may not be visible to the naked eye, but if pain follows an injury, a root canal may be necessary to prevent long-term issues.

Gum Pimples or Boils

Recurring pimples or boils on your gums may not seem like a big deal, but they can be a sign of an infected tooth root. These small bumps, often filled with pus, are a symptom of a dental abscess—essentially the body’s attempt to drain an infection. If you notice a foul taste in your mouth or bad breath that doesn’t go away, a root canal might be the next step in eliminating the infection.

Loose or Shifting Teeth

Adult teeth shouldn’t move. If a tooth feels loose or wobbly, it could be due to an advanced infection that’s damaging the bone supporting the tooth. A root canal can sometimes save a loose tooth, especially if treatment begins early. Waiting too long could lead to irreversible bone loss and the need for extraction or implants.

Unpleasant Taste or Persistent Bad Breath

A recurring bad taste in your mouth—especially if it’s sour or metallic—or chronic bad breath may be more than just a hygiene issue. These symptoms can indicate an ongoing infection deep inside a tooth, especially if they persist despite brushing and flossing. When bacteria accumulate and fester, they release foul-smelling gases and discharge. Root canal treatment can eliminate the source and restore a fresh, healthy environment in your mouth.

Pain Following Previous Dental Work

A dental patient reclines with mouth open as a dentist, wearing blue gloves, uses dental instruments; text explains how pain-free root canal treatments relieve common root canal symptoms.

If you’ve had a filling, crown, or other dental work on a tooth and the pain has returned—or never fully went away—it may be time for a closer look. Sometimes, decay can linger beneath a restoration, or the pulp may have been irritated during treatment. When this happens, root canal therapy may be required to address the issue and protect the integrity of the tooth.

What to Expect from a Root Canal at Pristine Family & Cosmetic Dentistry

The words “root canal” often sound intimidating, but modern dentistry has made this procedure far more comfortable and efficient than it used to be. At Pristine Family & Cosmetic Dentistry, we use advanced technology and gentle techniques to ensure your experience is as stress-free as possible. Our root canal treatments are designed to eliminate pain—not cause it.

Our compassionate team will walk you through every step of the process. From thorough diagnostics to post-treatment care, we focus on preserving your natural teeth and restoring your dental health. We believe in open communication, so you’ll never feel rushed or confused about your treatment options.

Don’t Wait—Protect Your Smile Today

If you’re experiencing any of the symptoms discussed above, don’t ignore them. Early intervention is key when it comes to preventing tooth loss, avoiding infections, and keeping your smile healthy. At Pristine Family & Cosmetic Dentistry, we’re here to help you get to the root of the issue and offer solutions that prioritize your comfort and long-term wellness.

Reach out to our San Antonio dental team today to schedule your appointment. Let’s work together to keep your teeth strong, pain-free, and beautifully healthy.

Free Teeth
Whitening for life

Pristine
Family & Cosmetic
Dentistry

9240 Guilbeau Rd Unit 128
San Antonio, TX 78250

210-681-5999

Office Hours:

Monday: 8am – 5pm

Tuesday: 8am – 5pm

Wednesday: 8am – 5pm

Thursday: 8am – 5pm

Friday – Sunday: Closed