Reviewed by Our Dental Expert Team DDS Independent dentist providing online second opinions.Reviewed by Our Dental Expert Team DDS Independent dentist providing online second opinions.

Dentist Says I Need a Root Canal — What Should I Do Next?

Your dentist just told you that you need a root canal. Your mind is probably racing with questions:Your dentist just told you that you need a root canal. Your mind is probably racing with questions:

"Is this really necessary?" "Can I wait?" "Should I get a second opinion?" "What happens if I don't do it?""Is this really necessary?" "Can I wait?" "Should I get a second opinion?" "What happens if I don't do it?"

These are all completely normal questions — and you're right to ask them.These are all completely normal questions — and you're right to ask them.

Root canals are one of the most commonly recommended (and expensive) dental procedures. According to the American Association of Endodontists (AAE), over 15 million root canals are performed each year in the US. Many patients are told they need one even when symptoms are mild or unclear, which is why understanding the *why*, *urgency*, and *alternatives* matters.

This guide walks you through exactly what to do when a dentist recommends a root canal, when a second opinion makes sense, and how to make an informed decision you can feel confident about.This guide walks you through exactly what to do when a dentist recommends a root canal, when a second opinion makes sense, and how to make an informed decision you can feel confident about.

Quick Answer: Don't Rush — You Usually Have Time

When a dentist recommends a root canal, here's what to do first:When a dentist recommends a root canal, here's what to do first:

1. Ask questions — Understand why it's being recommended 2. Request to see your X-rays — Visual proof matters 3. Get a second opinion if you're unsure — The ADA encourages second opinions for complex treatment plans 4. Understand the urgency — Most root canals are not emergencies

Unless you have facial swelling, fever, or constant severe pain, you typically have days or weeks to make a decision and seek a second opinion safely.Unless you have facial swelling, fever, or constant severe pain, you typically have days or weeks to make a decision and seek a second opinion safely.

Why Dentists Recommend Root Canals

A root canal is recommended when the pulp (nerve) inside your tooth is infected or dying. This can happen due to:A root canal is recommended when the pulp (nerve) inside your tooth is infected or dying. This can happen due to:

• Deep decay that reaches the nerveDeep decay that reaches the nerve
• A crack that exposes the nerveA crack that exposes the nerve
• Trauma to the toothTrauma to the tooth
• A large filling close to the nerveA large filling close to the nerve
• Repeated dental procedures on the same toothRepeated dental procedures on the same tooth

The goal is to remove infected tissue, clean the tooth from the inside, and prevent the spread of infection.The goal is to remove infected tissue, clean the tooth from the inside, and prevent the spread of infection.

However, not all root canal recommendations are accurate. Research published in the Journal of the American Dental Association (JADA) has shown that treatment recommendations can vary significantly between providers for the same patient. Many patients are told they need a root canal when simpler treatments — such as fillings, bite adjustments, or monitoring — may be sufficient.

Is This a Dental Emergency?

A true root canal emergency usually involves:A true root canal emergency usually involves:

• Facial or gum swellingFacial or gum swelling
• FeverFever
• Severe, constant painSevere, constant pain
• Pus or drainagePus or drainage
• Pain that worsens rapidlyPain that worsens rapidly

If you do not have these symptoms, the situation is usually not urgent, and you have time to get a second opinion.If you do not have these symptoms, the situation is usually not urgent, and you have time to get a second opinion.

Signs a Root Canal Recommendation Is More Likely Correct

Your dentist's recommendation may be accurate if you have:Your dentist's recommendation may be accurate if you have:

1. Severe, Constant Pain

• Throbbing pain that doesn't stopThrobbing pain that doesn't stop
• Pain that wakes you up at nightPain that wakes you up at night

2. Swelling or a Gum Pimple

• Facial or gum swellingFacial or gum swelling
• A draining pimple on the gumsA draining pimple on the gums

3. Lingering Temperature Sensitivity

• Cold or heat pain lasting 20–30 seconds or moreCold or heat pain lasting 20–30 seconds or more

4. Clear X-Ray Evidence

• A dark area at the root tip (abscess)A dark area at the root tip (abscess)
• Decay clearly reaching the nerveDecay clearly reaching the nerve

Red Flags That Mean You Should Get a Second Opinion

You should strongly consider a second opinion if:You should strongly consider a second opinion if:

• You have no pain or symptomsYou have no pain or symptoms
• Pain only occurs when chewingPain only occurs when chewing
• The diagnosis was very fastThe diagnosis was very fast
• No tests were performedNo tests were performed
• You weren't shown clear X-ray evidenceYou weren't shown clear X-ray evidence
• You felt pressured to decide immediatelyYou felt pressured to decide immediately
• Multiple expensive treatments were recommended at onceMultiple expensive treatments were recommended at once

These situations are extremely common and frequently misdiagnosed. For more warning signs, see 12 Red Flags of Unnecessary Dental Work.

What to Do Immediately After the Recommendation

Step 1: Ask the Right Questions

Ask:Ask:

• "Can you show me the problem on the X-ray?""Can you show me the problem on the X-ray?"
• "Is this urgent?""Is this urgent?"
• "What happens if I wait?""What happens if I wait?"
• "Are there alternatives?""Are there alternatives?"

Step 2: Get Your X-Rays

Under HIPAA regulations, you are legally entitled to copies of your dental records and X-rays. Having them allows easy second opinions.

Step 3: Assess Urgency

• Swelling or fever → urgentSwelling or fever → urgent
• Constant severe pain → urgentConstant severe pain → urgent
• Occasional pain or no symptoms → not urgentOccasional pain or no symptoms → not urgent

Step 4: Get a Second Opinion

A second opinion can confirm, delay, or eliminate the need for a root canal.A second opinion can confirm, delay, or eliminate the need for a root canal.

How to Get a Second Opinion

Option 1: Online Second Opinion

Upload X-rays and symptoms for a fast, unbiased review — often within 24 hours. Online reviewers don't perform treatment, so there's no financial incentive to recommend unnecessary work.Upload X-rays and symptoms for a fast, unbiased review — often within 24 hours. Online reviewers don't perform treatment, so there's no financial incentive to recommend unnecessary work.

Option 2: Another Dentist

Bring your X-rays and request an evaluation.Bring your X-rays and request an evaluation.

Option 3: Endodontist

A specialist who focuses on root canals and diagnosis. The AAE maintains a directory of board-certified endodontists by location.

Common Scenarios Explained

"The tooth doesn't hurt, but I need a root canal."

A root canal without pain is one of the most common scenarios we review. Often not urgent — get a second opinion to verify.A root canal without pain is one of the most common scenarios we review. Often not urgent — get a second opinion to verify.

"I have pain only when chewing."

Frequently caused by cracks or bite issues, not a dying nerve. See Tooth Hurts When Chewing — Causes Dentists Miss

"They want to do it today."

Urgent only if swelling or severe pain is present. If not, you have time to decide.Urgent only if swelling or severe pain is present. If not, you have time to decide.

The Cost of Getting It Wrong

Root canals cost $800–$2,500 in the US and are irreversible. A crown often follows, adding another $1,000–$3,000 — doubling or tripling the total cost.Root canals cost $800–$2,500 in the US and are irreversible. A crown often follows, adding another $1,000–$3,000 — doubling or tripling the total cost.

A second opinion can prevent unnecessary treatment and save thousands. To understand costs in more detail, see How Much Does a Dental Second Opinion Cost?

Root Canal vs. Alternatives: When Each Makes Sense

Not every case needs a root canal. Here's a quick comparison:Not every case needs a root canal. Here's a quick comparison:

• Root canal — Best for confirmed nerve infection with clear X-ray evidence and symptomsRoot canal — Best for confirmed nerve infection with clear X-ray evidence and symptoms
• Filling or crown — May be enough if decay hasn't reached the nerveFilling or crown — May be enough if decay hasn't reached the nerve
• Bite adjustment — Can resolve pain caused by uneven bite pressure, not infectionBite adjustment — Can resolve pain caused by uneven bite pressure, not infection
• Monitoring — Appropriate when symptoms are mild and X-rays are inconclusiveMonitoring — Appropriate when symptoms are mild and X-rays are inconclusive

For a detailed comparison, see Root Canal vs. Alternatives: Complete Comparison.

When to Proceed

Proceed if:Proceed if:

• Symptoms are severeSymptoms are severe
• X-ray evidence is clearX-ray evidence is clear
• A second opinion confirms the diagnosisA second opinion confirms the diagnosis

When to Wait

Wait if:Wait if:

• You have no symptomsYou have no symptoms
• Evidence is unclearEvidence is unclear
• You feel unsure or pressuredYou feel unsure or pressured

FAQ

How long can I wait before getting a root canal? Days to weeks if no swelling or severe pain. In non-emergency situations, delaying by 1-2 weeks to get a second opinion is generally safe.How long can I wait before getting a root canal? Days to weeks if no swelling or severe pain. In non-emergency situations, delaying by 1-2 weeks to get a second opinion is generally safe.

Is getting a second opinion on a root canal rude? No — it's responsible. The ADA encourages patients to seek second opinions for significant dental procedures. A good dentist will support your decision.Is getting a second opinion on a root canal rude? No — it's responsible. The ADA encourages patients to seek second opinions for significant dental procedures. A good dentist will support your decision.

Can I get a root canal second opinion online? Yes. Upload your X-rays and symptoms to get an independent review within 24 hours, without needing to visit another office or pay for new imaging.Can I get a root canal second opinion online? Yes. Upload your X-rays and symptoms to get an independent review within 24 hours, without needing to visit another office or pay for new imaging.

Can I refuse a root canal my dentist recommended? Yes — you always have the right to decline treatment. Ask your dentist what the risks are of waiting, and consider getting a second opinion to make an informed decision.Can I refuse a root canal my dentist recommended? Yes — you always have the right to decline treatment. Ask your dentist what the risks are of waiting, and consider getting a second opinion to make an informed decision.

What happens if I don't get a root canal I actually need? An untreated infected tooth can lead to an abscess, bone loss, and spread of infection. If you have confirmed nerve infection, delaying too long can result in tooth loss. That's why a second opinion — not avoidance — is the smart approach.What happens if I don't get a root canal I actually need? An untreated infected tooth can lead to an abscess, bone loss, and spread of infection. If you have confirmed nerve infection, delaying too long can result in tooth loss. That's why a second opinion — not avoidance — is the smart approach.

How much does a root canal cost without insurance? Front teeth: $800–$1,200. Premolars: $900–$1,500. Molars: $1,200–$2,500. A crown after root canal adds $1,000–$3,000. See our full root canal cost guide for details.

Final Advice

If a root canal recommendation doesn't sit right:If a root canal recommendation doesn't sit right:

• Don't rushDon't rush
• Ask questionsAsk questions
• Get a second opinionGet a second opinion
• Make an informed choiceMake an informed choice

If you're unsure, an online dental second opinion can help you decide with confidence.

For deeper explanation, see Do I Really Need a Root Canal? A Dentist Explains

Last medically reviewed: April 2026Last medically reviewed: April 2026