Smiley Dental Fairhaven

Root Canal

Root Canal Treatment in Fairhaven, MA

If you’re experiencing a toothache, lingering sensitivity, or swelling, you might worry the tooth needs to be removed. In many cases, a root canal can save the tooth, relieve pain, and prevent the infection from spreading.

At Smiley Dental Fairhaven, we make root canal treatment gentle, predictable, and stress-free. We proudly serve Fairhaven and surrounding South Coast communities, including New Bedford, Acushnet, Dartmouth, Mattapoisett, Marion, Rochester, Freetown, Fall River, and the greater Southeastern Massachusetts area.

What Is a Root Canal?

A root canal is a routine procedure that removes infection from the inner part of a tooth—called the pulp.

When the nerve becomes infected or inflamed from deep decay, a crack, trauma, or an old failing filling, it can cause constant pain or swelling.

A root canal:

It is one of the most effective ways to avoid an extraction while restoring full function to your smile.

Signs You May Need a Root Canal

If you’re unsure, call us—an X-ray will determine whether a root canal is needed

Common Causes

Once infection reaches the nerve, it cannot heal on its own—root canal therapy is needed to save the tooth.

What Happens During the Visit

1. Exam & X-Ray
We evaluate your symptoms, take an X-ray, and confirm the diagnosis.

2. Numbing & Comfort
The tooth and surrounding area are numbed completely for a pain-free experience.

3. Cleaning the Infection
We remove the infected pulp tissue and disinfect the canals using precise instruments.

4. Sealing the Tooth
The cleaned canals are filled with a safe, rubber-like material that prevents future infection.

5. Final Restoration (Crown)
Most teeth need a crown afterward to strengthen and protect them from cracking.

Why the Crown Matters

After a root canal, the tooth no longer receives nutrients from the nerve, making it more brittle over time.
A crown:

Skipping the crown greatly increases the risk of breaking the tooth later.

Why a Root Canal Is a Good Option

Root canals have a very high success rate and can last a lifetime with proper care.

Does the Procedure Hurt?

Today’s root canals are comfortable and efficient. With modern anesthesia, the procedure feels similar to getting a filling. Mild soreness afterward is normal and usually resolves within 24–48 hours.

Aftercare Instructions

We provide personalized instructions based on your treatment.

Cost, Insurance & Payment Options

Most dental insurance plans cover a large portion of root canals and part of the crown. We will:

Smiley Dental Fairhaven accepts CareCredit, Cherry, Sunbit, LendingTree, and other flexible financing options.

Frequently Asked Questions

How do I know if I really need a root canal?

Persistent pain, sensitivity to temperature, swelling, or a darkened tooth are strong indicators. The only way to confirm is with an exam and X-ray, which we can do during your visit.

Most patients feel significant relief the same day or within 24–48 hours, once the infected nerve tissue is removed.

Saving your natural tooth is almost always the better option. Extraction can lead to shifting teeth, bone loss, and the need for bridges or implants—which are more expensive and invasive.

Delays can allow the infection to spread deeper into the bone or gums, causing severe pain or swelling. In some cases, the infection can become an emergency or lead to tooth loss.

Not always. Antibiotics are only prescribed if there is significant swelling or infection spreading beyond the tooth.

Reinfection is uncommon but can occur if decay forms around the crown, if the tooth cracks, or if the canals were unusually complex. Retreatment is possible if needed.

Some teeth require a temporary filling before the crown is placed, but we recommend getting the crown as soon as possible to prevent fractures.

ou can eat once the numbness wears off, but stick to soft foods and avoid chewing on the treated side until the final crown is placed.

The surrounding tissue may be irritated from the infection or procedure. Mild tenderness is normal and typically resolves within a day or two.

With good home care and a properly placed crown, a root canal–treated tooth can last many years—sometimes a lifetime.

Schedule Your Root Canal Consultation

If you’re in pain or think you may need a root canal, call our Fairhaven team today.
We’ll help you feel better quickly.

Call 508-967-1000 to schedule your visit.

Other Smiley Dental locations:
Boston 857-888-8000 • Beverly 978-288-1000 • Lowell 978-999-9000 • Waltham 781-666-6000