Myths About Root Canals

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Myths About Root Canals and Root Canal Pain

Root canal treatment is surrounded by several misconceptions, particularly regarding pain, safety, and whether removing a tooth is a better option. Having accurate information can help you make a confident decision about your dental care. If you are considering endodontic treatment, discuss your concerns and treatment options with your dentist or endodontist. If you remain uncertain, seeking a second professional opinion can also help you better understand your choices.

Myth #1 — Root Canal Treatment Is Painful

The Truth — Root canal treatment is designed to relieve pain, not cause it.

The reputation of root canals being extremely painful largely comes from experiences and dental techniques from decades ago. Modern dental anesthesia, technology, and treatment techniques have made root canal therapy much more comfortable. For most patients, the procedure is comparable to having a routine filling.

Many people who require a root canal visit the dentist because they are already experiencing significant tooth pain. This discomfort is usually caused by inflammation or infection affecting the tissues inside the tooth. During root canal treatment, the damaged or infected pulp is carefully removed, helping eliminate the source of the pain.

Some tenderness may occur after treatment as the surrounding tissues recover, but this is generally temporary and can be managed according to your dentist’s recommendations.

Myth #2 — Root Canal Treatment Causes Illness

The Myth

Some sources claim that root canal-treated teeth can release harmful bacteria into the body and cause systemic diseases. These claims are largely based on outdated research from the early 20th century and do not reflect the evidence supporting modern endodontic treatment.

The Truth

There is no established scientific evidence that properly performed root canal treatment causes systemic disease. Root canal therapy is intended to remove infection from inside the tooth, clean and disinfect the root canal system, prevent reinfection, and preserve the natural tooth whenever possible.

Bacteria naturally exist in the mouth, and their presence alone does not mean that a person has a systemic infection. The body’s immune system and normal oral defenses continually interact with these microorganisms.

The historical claims surrounding root canals can be traced in part to research conducted by Dr. Weston A. Price in the 1920s. His research methods were subsequently criticized, and later studies using improved scientific methods did not support his conclusions.

By the middle of the 20th century, reviews of the available scientific evidence had moved dental practice away from those earlier claims and back toward preserving teeth with appropriate endodontic treatment when they could be successfully saved.

Modern endodontic treatment is focused on eliminating infection within the tooth while preserving its natural structure. When a tooth can be successfully treated, saving it can help maintain normal chewing function, appearance, and the surrounding dental structures.

Myth #3 — Extraction Is a Better Alternative to Root Canal Treatment

The Truth — When a natural tooth can be predictably saved, preserving it is generally preferred.

Removing a tooth permanently eliminates the natural tooth structure and may create the need for additional treatment to replace it. Depending on the situation, tooth replacement may involve a dental implant, bridge, or removable restoration.

A successful root canal allows you to keep your natural tooth while treating the damaged or infected pulp. With appropriate restoration and ongoing dental care, many root canal-treated teeth can remain functional for many years.

Tooth extraction can also affect the surrounding bone and neighboring teeth. Replacing a missing tooth may require additional procedures and treatment time.

For these reasons, if extraction has been recommended, it may be worthwhile to ask whether root canal treatment or another tooth-preserving option is possible. Your dentist or endodontist can evaluate the tooth and explain the benefits, limitations, and expected outcomes of each treatment option.

Millions of people have successfully received endodontic treatment and continue to use their natural teeth for everyday eating, speaking, and smiling. Whenever possible, preserving your natural tooth can be an important part of maintaining long-term oral health.

Signs you may need treatment

Severe or Persistent
Tooth Pain

Sensitivity to Hot
or Cold

Pain When Biting
or Chewing

Tooth Discoloration
or Swelling

What to expect

1

Diagnose

We examine your tooth and use dental X-rays or advanced imaging when needed to determine the source of your pain or infection and assess whether root canal treatment can preserve the tooth.

2

Treat

We use modern anesthesia and endodontic techniques to remove the damaged or infected pulp, thoroughly clean the root canal system, and seal the tooth to help prevent reinfection.

3

Restore

After root canal treatment, the tooth is restored with an appropriate filling or crown to protect its structure and return it to comfortable, functional use.

Common questions

Is a root canal really painful?
Modern root canal treatment is performed using local anesthesia and is generally no more uncomfortable than other routine dental procedures. The treatment is designed to remove the source of tooth pain and infection.
Current scientific evidence does not establish a link between properly performed root canal treatment and systemic disease. The procedure is designed to remove infection from inside the tooth and preserve the natural tooth.
If the tooth can be predictably saved, preserving the natural tooth is generally preferred. Your dentist or endodontist can determine whether root canal treatment is a suitable alternative to extraction.
Many concerns originate from outdated theories and research from the early 1900s. Subsequent research and modern endodontic practice have not supported those historical claims.
Extraction removes the tooth and may require replacement with an implant, bridge, or denture. Tooth replacement can involve additional procedures and treatment time, so it is important to discuss all available options before making a decision.