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Episode 95

full
Published on:

10th Sep 2025

What is a Root Canal? All you need to know!

What is a Root Canal? All You Need to Know!

Everything Patients Need to Know About Root Canal Treatment

Root canals are one of the most misunderstood procedures in dentistry. Many patients fear root canal treatment because of outdated myths and misinformation. In reality, modern root canal therapy is designed to relieve pain, save natural teeth, and restore oral health comfortably and efficiently.

In this episode of The Wonder Tooth Podcast, Dr. Radwa Saad explains everything patients need to know about root canals, including:

  • What a root canal is
  • Why root canals are needed
  • Signs of tooth infection
  • Root canal procedure steps
  • Modern root canal technology
  • Recovery and aftercare
  • Root canal vs extraction
  • How to prevent needing a root canal

Watch the full episode here:

What is a Root Canal? All You Need to Know!

Listen on:

  • Apple Podcasts
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  • iHeartRadio

What Is a Root Canal?

A root canal is a dental procedure used to treat infection or inflammation inside the tooth.

Inside each tooth is soft tissue called the pulp, which contains:

  • Nerves
  • Blood vessels
  • Connective tissue

When bacteria reach the pulp due to decay, cracks, trauma, or infection, the tooth can become painful and infected.

Root canal treatment removes the infected pulp, disinfects the inside of the tooth, and seals it to prevent future infection.

Why Would Someone Need a Root Canal?

Deep Tooth Decay

Untreated cavities can spread into the inner part of the tooth.

Learn more:

Cavities Between Teeth Explained

Cracked or Broken Teeth

Cracks can allow bacteria to enter the pulp chamber.

Trauma or Injury

Sports injuries or accidents may damage the nerve inside the tooth.

Severe Tooth Infection

An untreated infection can spread deeper into the root structure.

Repeated Dental Procedures

Multiple restorations on the same tooth can irritate the pulp over time.

Signs You May Need a Root Canal

Persistent Tooth Pain

Pain that lingers or worsens may indicate pulp inflammation or infection.

Sensitivity to Hot or Cold

Lingering sensitivity after eating or drinking may signal nerve damage.

Swelling or Tender Gums

Swelling around a tooth may indicate infection or abscess formation.

Tooth Discoloration

Darkening of the tooth may occur after trauma or infection.

Pain While Chewing

Pressure sensitivity often indicates internal tooth damage.

What Happens During a Root Canal?

Step 1: Diagnosis and Imaging

The dentist evaluates the tooth using:

  • Digital X-rays
  • Clinical examination
  • Advanced imaging when needed

Modern technology helps diagnose infection more accurately.

Step 2: Local Anesthesia

The area is numbed to keep the patient comfortable during treatment.

Most patients are surprised at how painless root canals feel today.

Step 3: Removing the Infection

The infected pulp tissue is carefully removed from inside the tooth.

Step 4: Cleaning and Disinfection

The canals are disinfected thoroughly to eliminate bacteria.

Step 5: Sealing the Tooth

The cleaned canals are sealed to prevent reinfection.

Step 6: Restoring the Tooth

Most root canal-treated teeth receive a dental crown for protection and strength.

Learn more:

Same-Day Dental Crowns

Are Root Canals Painful?

One of the biggest myths in dentistry is that root canals are painful.

In reality:

  • The infection causes pain
  • The root canal relieves pain

Modern dentistry uses:

  • Advanced anesthesia
  • Digital imaging
  • Improved instruments
  • Faster treatment techniques

These advancements make treatment far more comfortable than many patients expect.

Root Canal vs Tooth Extraction

Some patients wonder whether it is better to remove the tooth instead.

Benefits of Saving the Natural Tooth

Maintains Natural Bite Function

Natural teeth help preserve chewing efficiency.

Prevents Tooth Shifting

Neighboring teeth may shift after extraction.

Helps Preserve Bone

Natural tooth roots stimulate the jawbone.

Conservative Treatment

Saving the tooth is often preferred when possible.

Learn more about implants:

Dental Implants Princeton NJ

What Happens If You Ignore an Infected Tooth?

Delaying treatment may lead to:

  • Severe pain
  • Swelling
  • Bone loss
  • Abscess formation
  • Tooth loss
  • Spread of infection

Early treatment improves outcomes and may help save the tooth.

Recovery After a Root Canal

Most patients return to normal activities quickly after treatment.

Recovery Tips

Avoid Hard Foods Temporarily

Protect the treated tooth until fully restored.

Maintain Good Oral Hygiene

Brush and floss regularly.

Attend Follow-Up Visits

Proper restoration is essential for long-term success.

Get the Recommended Crown

Crowns help strengthen and protect the treated tooth.

How Technology Has Changed Root Canal Treatment

At Dent Blanche Dental, advanced digital dentistry improves diagnosis and patient comfort.

Technology may include:

  • Digital X-rays
  • 3D CBCT imaging
  • CAD/CAM same-day crowns
  • Digital scanning
  • Precision restorative dentistry

These tools help improve:

  • Accuracy
  • Comfort
  • Efficiency
  • Long-term outcomes

Sedation Dentistry for Nervous Patients

Patients with dental anxiety may benefit from sedation options.

Sedation dentistry helps many patients feel:

  • Relaxed
  • Comfortable
  • Less fearful during treatment

Learn more:

Dent Blanche Dental Services

How to Prevent Root Canals

Preventive care remains the best defense against severe tooth infection.

Prevention Tips

Brush and Floss Daily

Good oral hygiene reduces decay risk.

Schedule Routine Dental Exams

Early detection prevents major problems.

Treat Cavities Early

Small cavities are easier to treat before infection develops.

Wear a Night Guard if Needed

Grinding can crack and damage teeth.

Learn more:

Teeth Grinding and Bruxism

Why Patients Choose Dent Blanche Dental

Patients choose Dent Blanche Dental because of:

  • Advanced digital dentistry
  • Luxury patient experience
  • Same-day dentistry technology
  • Personalized treatment planning
  • Cosmetic dentistry expertise
  • Comfortable, compassionate care

Led by Dr. Radwa Saad, the practice focuses on elevated patient-centered dentistry.

Frequently Asked Questions About Root Canals

What is the purpose of a root canal?

A root canal removes infection inside the tooth and helps save the natural tooth.

Are root canals painful?

Modern root canals are generally very comfortable due to advanced anesthesia and technology.

How long does a root canal take?

Treatment time depends on the complexity of the case and the tooth involved.

Will I need a crown after a root canal?

Many teeth require crowns after treatment for strength and protection.

Can a root canal save my tooth?

Yes. Root canal therapy is designed to preserve natural teeth whenever possible.

What happens if I delay treatment?

Delaying treatment may worsen infection and increase the risk of tooth loss.

Is extraction better than a root canal?

Saving the natural tooth is often preferred if the tooth has a good long-term prognosis.

Ready to Relieve Tooth Pain and Save Your Tooth?

If you are experiencing tooth pain, swelling, sensitivity, or signs of infection, early treatment can help prevent complications and preserve your smile.

At Dent Blanche Dental, Dr. Radwa Saad combines advanced digital dentistry with compassionate care to make root canal treatment more comfortable than ever before.

Schedule Your Consultation Today

If you are searching for:

  • Root canal treatment Princeton NJ
  • Emergency dentist Princeton NJ
  • Tooth pain relief
  • Same-day dental crowns
  • Cosmetic dentistry
  • Digital dentistry

Our team is here to help.

Call today: (609) 890-1888

Request an appointment online:

Book Your Appointment at Dent Blanche Dental

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Help us continue bringing expert dental education and oral health insights to patients worldwide.

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Watch the full episode:

What is a Root Canal? All You Need to Know!

A root canal is one of the most common yet misunderstood dental treatments.

In this episode of The Wonder Tooth Podcast, Dr. Radwa Saad, a leading cosmetic dentist sits with Dr. Nadia Liss, Endodontist in New Jersey.

Root Canal Therapy Explained with Dr. Nadia Liss, Endodontist

At Dent Blanche Dental, we believe patient education is the foundation of exceptional dental care. In this special episode of The Wonder Tooth Podcast, Dr. Radwa Saad sits down with Dr. Nadia Liss, endodontist and founder of Hamilton Endodontics, to explain what a root canal is, why it is performed, and how modern Princeton dentistry has made the procedure more comfortable than ever.

What Is a Root Canal?

A root canal is a common dental treatment designed to remove infection inside the tooth and preserve your natural smile. Instead of extracting the tooth, your Princeton dentist carefully removes damaged pulp, disinfects the area, and seals the tooth to restore its health. This approach is essential for saving natural teeth and avoiding the long-term issues that follow tooth loss.

When Do You Need a Root Canal?

If you are experiencing:

  • Persistent toothache
  • Sensitivity to hot or cold
  • Swelling or tenderness around the gums
  • A dental abscess

…it may be time to visit a Princeton dental office for evaluation. Dr. Nadia Liss explains that these symptoms should never be ignored, as early treatment provides the best outcome.

Step-by-Step Treatment Overview

During the podcast, Dr. Liss provides a simple breakdown of the root canal process:

  1. Diagnosis– Using digital imaging to pinpoint infection.
  2. Anesthesia– Ensuring the treatment is completely painless.
  3. Cleaning– Removing infected tissue from inside the tooth.
  4. Sealing– Restoring the tooth’s structure with advanced materials.
  5. Restoration– Often finished with a crown to protect and strengthen the tooth.

Modern Dentistry, Comfortable Care

Thanks to advancements in cosmetic dentistry and digital tools, root canal therapy is now quick, efficient, and stress-free. Princeton dentists like Dr. Saad and Dr. Liss use the latest technology to ensure precision and comfort, making the experience much easier than patients expect.

Why Preserving Teeth Matters

Saving your natural dent is always better than extraction. A root canal prevents shifting, bone loss, and the need for costly dental implants. Choosing the best dentist for your care ensures long-lasting results and confidence in your smile.

Root Canal FAQs

Does a root canal hurt?

No, modern root canal treatment is virtually painless. At Dent Blanche Dental in Princeton, we use advanced anesthesia and digital dentistry tools to ensure maximum comfort. Most patients say the procedure feels no different than getting a regular filling.

How long does a root canal take?

A typical root canal procedure usually takes 60 to 90 minutes, depending on the complexity of the tooth. Thanks to rotary instruments and digital imaging, Princeton dentists can often complete treatment in just one visit.

How long does a root canal last?

With proper dental care, a root canal can last a lifetime. After the procedure, most teeth are restored with a porcelain crown, which protects the tooth and ensures long-term strength and function.

Read more about Root Canal

Book Your Appointment Today

If you’re searching for the best dentist in Princeton for root canal therapy, emergency dental care, or cosmetic dentistry, contact Dent Blanche Dental today. Our dental office provides advanced treatment options in a relaxing environment designed for your comfort.

📞 Call us now at 609-890-1888 or visit Dent Blanche Dental to schedule your consultation.

Contact Dr. Nadia Liss

Hamilton Endodontics

Dr. Nadia Liss

1245 Whitehorse Mercerville Rd, Suite 424

Hamilton Township, NJ 08619

609.438.9130

https://hamiltonrootcanal.com/

📅Schedule your appointment today here

We’re thrilled to bring you the latest innovations and help you understand how dentistry is evolving. So tune in to *The Wonder Tooth Podcast* for this full episode, where Dr. Saad answers your questions, shares real-life stories, and explains how we can help you achieve a perfect smile—on the same day!

Stay tuned for more insights, and remember, your dream smile is closer than you think!

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Make sure to tune in to this eye-opening episode, and remember, great oral health starts with the right information. We're here to help you smile with confidence!

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Schedule an appointment today

👉 https://dentblanchedental.com

Dent Blanche Dental

3640 Lawrenceville Rd, Princeton, NJ, 08540

www.DentBlancheDental.com

Office# 609-890-1888

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About the Podcast

The Wonder Tooth Podcast
The Wonder Tooth Podcast – Your Ultimate Guide to a Healthy, Stunning Smile!
The Wonder Tooth Podcast – Where Dentistry Meets Confidence, Beauty, and Total Wellness
Subscribe today! https://blog.dentblanchedental.com/

Welcome to The Wonder Tooth Podcast, your go-to dental podcast hosted by award-winning cosmetic dentist Dr. Radwa Saad, founder of Dent Blanche Dental—one of the most luxurious and advanced dental offices in the U.S., located in the heart of Princeton, New Jersey.

Each episode of The Wonder Tooth dives deep into the incredible, transformative power of dentistry—from smile makeovers and digital dentistry to oral-systemic health, emergency dental care, and debunking common dental myths. This is not just a podcast for those in the dental field—it’s for anyone who wants to feel better, look younger, and live more confidently, starting with their smile.

Dr. Saad brings over two decades of experience and a warm, relatable tone to each episode. As a national speaker, Key Opinion Leader (KOL) for Dentsply Sirona and SureSmile clear aligners, and a recognized expert in cosmetic dentistry, she explains advanced dental concepts in a way that’s easy to understand—while also inspiring listeners to take charge of their oral health.

What You’ll Hear on The Wonder Tooth:
- Secrets to finding the best dentist near you
- Real stories from patients who overcame dental anxiety
- How your gum health affects your heart and brain
- The truth about fluoride, oil pulling, and teeth whitening
- What to do in a dental emergency (cracked tooth, chipped veneers, etc.)
- Cosmetic dentistry options: veneers, crowns, implants, and more
- Same-day smile makeovers using CAD/CAM & 3D imaging
- How fixing your smile can help you advance your career, relationships, and confidence
🎙️ With new episodes released regularly, The Wonder Tooth Podcast is available on all major platforms:
- Apple Podcasts
- Spotify
- Audible
- Amazon Music
- iHeartRadio
and more!

This podcast is an extension of the elite care provided at Dent Blanche Dental, a luxury dental office in Princeton, NJ. Dr. Saad and her team combine digital dentistry, cosmetic artistry, and personalized wellness-based care in a calming, spa-like environment surrounded by nature and koi ponds. It’s not just dentistry—it’s Elevated Dentistry™.

🔗 Want to learn more or see if you're a candidate for a smile transformation? Visit: https://dentblanchedental.com/

Follow The Wonder Tooth Podcast on Instagram, YouTube, and TikTok for behind-the-scenes clips, before-and-after, and listener Q&As.

About your host

Profile picture for Radwa Saad

Radwa Saad

Dr. Radwa Saad, DMD, is an accomplished cosmetic and implant dentist with over 20 years of experience and a recognized leader in digital dentistry. Licensed in both the United States and Canada, she earned her Doctor of Dental Medicine degree with Honors from the Faculty of Dentistry at the University of Manitoba, where she received multiple academic awards and achieved Dean’s Honor List distinction. Dr. Saad is a Fellow and holds a Mastership from the International Congress of Oral Implantologists (ICOI), is a past President and current executive board member of the Mercer Dental Society, and an Invisalign Preferred Provider. She is the founder of Dent Blanche Dental in Princeton, NJ, and Fifth Avenue, Upper East Side, New York City, a luxury technology-driven practice. Dr. Saad currently serves as a Key Opinion Leader (KOL) and national speaker for Dentsply Sirona and recently spoke at DS World in Las Vegas on digital dentistry, CAD/CAM workflows, implants, and clear aligner therapy.