One Endodontics modern reception area in Northern Virginia

Choose Excellence in Endodontic Care for Your Dental Health

Painless root canals, dental emergency treatment, and advanced endodontic procedures — delivered by board-certified endodontists in Falls Church, Sterling, Gainesville, Fredericksburg, and Woodbridge.

Request an Appointment
ABOUT ONE ENDODONTICS

One practice. One focus.
Your tooth.

At One Endodontics in Falls Church, Sterling, Gainesville, and Fredericksburg, VA, our skilled endodontists perform painless root canals and treat dental emergencies utilizing the most advanced technologies. We serve the areas of Northern VA.

Drs. Saif Kargoli, Hashim Al-Hassany, and Maan Zuaitar are careful and gentle, taking an interest to ensure every patient's procedure is painless. Our team is highly experienced and provides the highest standard of endodontic care.

Five Locations

Falls Church, Sterling, Gainesville, Fredericksburg, and Woodbridge — wherever you are in Northern Virginia, we are close by.

Same-Day Emergencies

Dental pain does not keep office hours. We see urgent cases the same day and provide first aid guidance over the phone while you are on the way.

Advanced Technology

Cone beam 3D CBCT imaging, operating microscopes, and digital X-rays let us see — and treat — what general offices routinely miss.

Genuinely Gentle Care

We explain every step before we take it and we never rush. We offer sedation options for patients who need a little extra help relaxing — no judgment, no pressure.

Our Specialists

Board-Certified Endodontists Dedicated to Your Care

Our specialists bring advanced endodontic training, board certification, and a genuine focus on patient comfort. At One Endodontics Falls Church, every provider is committed to one goal: giving your tooth the best possible outcome.

Diplomate, American Board of Endodontics Board Certified Endodontists American Association of Endodontics Omicron Kappa Upsilon Honor Society 5-Star Rated Practice (1,300+ Reviews)

Ready to meet our team in person? We welcome both referrals and self-referred patients at our Falls Church office. Call us or request a consultation online.

Professional Memberships & Affiliations
Root Canal Therapy

Root Canal Therapy

Far more comfortable than its reputation suggests. We remove infected pulp, clean and seal the canal, and have you back to normal fast.

Learn More
Apicoectomy

Apicoectomy

A minor surgical procedure that removes the tip of the tooth root when infection persists. Microscopic precision, minimal discomfort.

Learn More
Cracked Teeth

Cracked Teeth

One of the most under-diagnosed causes of tooth pain. We use advanced imaging to find fractures and determine the best path forward.

Learn More
Traumatic Injuries

Traumatic Injuries

Traumatic dental injuries require immediate care, and One Endodontics provides expert treatment across Falls Church, Sterling, Gainesville, and Fredericksburg to help save your natural tooth and restore your smile.

Learn More
Root Canal Retreatment

Root Canal Retreatment

If a previous root canal is causing persistent pain or sensitivity, root canal retreatment at One Endodontics can address the underlying issue and give your natural tooth a second chance.**

Learn More
Root Resorption

Root Resorption

One Endodontics specializes in diagnosing and treating root resorption using advanced 3D imaging and microsurgical techniques, catching this often-silent condition early and providing targeted care to preserve the natural tooth whenever possible.

Learn More
Sedation

Sedation

One Endodontics offers nitrous oxide and oral conscious sedation to help anxious patients feel calm and comfortable throughout their endodontic treatment, ensuring that fear never stands in the way of necessary dental care.

Learn More
Vital Pulp Therapy / Pulpotomy

Vital Pulp Therapy / Pulpotomy

One Endodontics offers vital pulp therapy and pulpotomy — conservative procedures that preserve living pulp tissue in the root, avoiding full root canal treatment while maintaining the tooth's natural biology and supporting continued root development in younger patients.

Learn More
Post and Core

Post and Core

One Endodontics provides post and core buildup procedures that create a stable internal foundation for crown placement, giving significantly weakened teeth the structural support they need for long-term function and durability.

Learn More
Microsurgery

Microsurgery

One Endodontics performs endodontic microsurgery using surgical-grade microscopes and ultrasonic instruments, giving patients with persistent infection or failed root canals a precise, minimally invasive path to saving their natural teeth.

Learn More
Internal Bleaching

Internal Bleaching

One Endodontics offers internal bleaching, a conservative procedure that whitens discolored non-vital teeth from the inside out — preserving natural tooth structure while delivering results that surface whitening products simply cannot achieve.

Learn More
Pulp Regeneration

Pulp Regeneration

One Endodontics offers pulp regeneration — a biologically based procedure that restores living tissue and encourages continued root development in young patients with immature teeth, providing a superior alternative to traditional root canal therapy.

Learn More
Regenerative Procedures

Regenerative Procedures

One Endodontics offers advanced regenerative endodontic procedures — including pulp regeneration, vital pulp therapy, and apexogenesis — that harness the body's own biological processes to preserve natural teeth, promote root development, and restore function for patients across Northern Virginia.

Learn More
Advanced Technology

Advanced Technology

At One Endodontics, we utilize cutting-edge technology — including 3D CBCT imaging, surgical microscopes, and digital X-rays — to deliver precise, accurate, and comfortable endodontic care across Northern Virginia.

Learn More
Considerations for Regenerative Procedures

Considerations for Regenerative Procedures

One Endodontics partners with referring dentists across Northern Virginia to provide evidence-based regenerative endodontic procedures for young patients with immature teeth, offering seamless referral coordination, collaborative treatment planning, and detailed follow-up communication throughout the process.

Learn More

Why see an endodontist?

Endodontists specialize in saving a patient's teeth, often with a root canal treatment. An endodontist goes through 5 years of general dental school, followed by 2 to 5 years of advanced endodontic training. Whereas general dentists average around 5 root canal procedures per week, an endodontist often performs over 25 root canals in a week.

At One Endodontics, we treat patients with dental emergencies every day. Call our office immediately if you are experiencing a dental emergency. Our team will provide first aid instructions over the phone and get you the help you need.

Request an Appointment

What our patients are saying

We know a root canal isn't something you look forward to. Here's what patients say after they've been through it with us.

Falak Shah Falak Shah

Falak Shah

May 14, 2026

Google Verified

"Amazing experience. Front desk, support staff and Doctors are very helpful and caring !!"

Aseem Singh Aseem Singh

Aseem Singh

May 14, 2026

Google Verified

""

LaMont Coleman LaMont Coleman

LaMont Coleman

May 14, 2026

Google Verified

""

Joni McKinney Joni McKinney

Joni McKinney

May 14, 2026

Google Verified

"The team was very friendly and efficient. Allie was very experienced in her role. Dr Diab was informative and very gentle. I highly recommend this practice."

Rodney Urban Rodney Urban

Rodney Urban

May 14, 2026

Google Verified

""

Mohammed Ghannam Mohammed Ghannam

Mohammed Ghannam

May 13, 2026

Google Verified

""

Paula Bailey Paula Bailey

Paula Bailey

May 13, 2026

Google Verified

"Nice friendly office. Procedure was explained so everything was understood"

Sneha Gattu Sneha Gattu

Sneha Gattu

May 13, 2026

Google Verified

"Dr.Wii was amazing and I had a great experience.Definitely recommend"

Inca Walker Inca Walker

Inca Walker

May 13, 2026

Google Verified

"I cannot say enough wonderful things about Dr. Adil and the staff at One Endodontics. I was extremely nervous going into my root canal, but from the moment I walked in, everyone was so kind, patient, and reassuring. Dr. Adil explained everything clearly, made sure I was comfortable the entire time, and the procedure was far easier and more painless than I ever imagined. The staff at One Endodontics are exceptional! Compassionate, professional, and genuinely caring. They turned what I expected to be a very stressful experience into a positive one. I’m so grateful for the outstanding care I received and highly recommend this office to anyone, especially those with dental anxiety. Thank you again for such an exceptional experience! 🙂"

Emily Hahn Emily Hahn

Emily Hahn

May 13, 2026

Google Verified

"Really great experience! Dr. Al-Hassany was fantastic and got me in and out quickly with zero pain (for a root canal!). Highly recommend one endodontics and will come back."

ramesh anupindi ramesh anupindi

ramesh anupindi

May 13, 2026

Google Verified

"Great visit and dental issues were explained and treated well."

James Brandon James Brandon

James Brandon

May 12, 2026

Google Verified

"I called late yesterday afternoon in need of a root canal, they were able to get me an appointment this morning. The staff was friendly and attentive and the procedure was, for a root canal, quick and painless."

Olga Svotneva Olga Svotneva

Olga Svotneva

May 12, 2026

Google Verified

"Highly recommend Dr. Al-Hassany! A year ago, I came in with a severe infection and was told the success rate was only 25-30%. Thanks to his expertise, the root canal was a success. I just had my one-year follow-up, and the healing is remarkable. Professional, skilled, and highly effective."

Nazanin Codd Nazanin Codd

Nazanin Codd

May 11, 2026

Google Verified

"They were so kind, patient and quick to give me help for an emergency root canal. Dr. Al-Hassany prioritized my pain and ensured that the root canal was painless and quick."

Brian S Brian S

Brian S

May 11, 2026

Google Verified

"Dr Al-Hassany and his staff were great. Quick, accommodating, and friendly."

katisha reese katisha reese

katisha reese

May 11, 2026

Google Verified

"Best dental experience for my daughter. She felt comfortable and the staff went above and beyond"

Karina Green Karina Green

Karina Green

May 8, 2026

Google Verified

""

Sierra Frazier Sierra Frazier

Sierra Frazier

May 8, 2026

Google Verified

"Amazing experience! After being turned away from multiple other offices, they took such great care of me. Carly at the front desk is really sweet and personable. Dr. Diab was kind, courteous, and professional! They were happy to answer all of my questions and ease my anxieties. If I could give 10 stars I would!"

Jory Fisher Jory Fisher

Jory Fisher

May 8, 2026

Google Verified

"Exceptional care. Professional, friendly doctors and staff. Grateful for their help."

K Logan K Logan

K Logan

May 8, 2026

Google Verified

"I had an amazing experience at One Endodontics. The entire staff was kind and pleasant. DDS James Lee performed my root canal. He made sure I understood the process and kept me informed throughout the procedure. I highly recommend this location. You can tell by their actions that they really value their patients."

Common questions

If you're experiencing tooth pain, prolonged sensitivity to hot or cold, swelling near a tooth, or have been told you may need a root canal — an endodontist is the right specialist to see. Most patients are referred by their general dentist, but you're also welcome to contact us directly.
A root canal removes infected or damaged tissue from inside your tooth, relieves the pain causing you grief, and seals the tooth to prevent future infection. With modern anesthesia and technique, the procedure itself is no more uncomfortable than a routine filling. Most patients are surprised by how easy it is.
Endodontists complete two to five additional years of specialty training beyond dental school, focused entirely on the diagnosis of tooth pain and treatment of the dental pulp. Our doctors perform over 25 root canal procedures per week — a level of volume and focus that makes a measurable difference in outcomes.
Yes — every day. If you're in significant tooth pain, call us immediately. We offer same-day emergency appointments across all five of our Northern Virginia locations and will provide first-aid guidance over the phone while you're on the way.
This happens, and it's exactly what retreatment is for. Our endodontists are experienced in diagnosing why a previous root canal has failed and performing retreatment to give the tooth a second chance — even in complex cases.
We accept most major dental insurance plans and will help you verify your coverage before treatment. For out-of-pocket costs, we offer financing through Cherry — flexible payment plans you can apply for in minutes.
Coverage & Payments

Insurance & Financing

We believe cost should never be the reason someone avoids saving a tooth. We accept most major dental insurance plans and offer flexible financing options to cover the rest.

Dental Insurance

We accept most major dental insurance plans. Our team will verify your coverage before your appointment and walk you through exactly what is included — no surprises, no guesswork.

  • Benefits verified before your appointment
  • Clear cost breakdown provided upfront
  • Most major PPO plans accepted
Verify My Coverage

Flexible Financing

For out-of-pocket costs, we offer financing through Cherry and CareCredit — flexible payment plans you can apply for in minutes, right from your phone.

  • Apply in minutes from your phone
  • Low monthly payment options available
  • No reason to delay necessary care
Cherry Financing CareCredit

Have questions about coverage or financing? Our team is happy to walk you through your options before your appointment.

Contact Us About Coverage

Request an Appointment

Fill out the form below and our team will contact you to confirm your appointment time, preferred location, and any insurance questions. For dental emergencies, please call your nearest location directly.