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 AppointmentAt 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.
Falls Church, Sterling, Gainesville, Fredericksburg, and Woodbridge — wherever you are in Northern Virginia, we are close by.
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.
Cone beam 3D CBCT imaging, operating microscopes, and digital X-rays let us see — and treat — what general offices routinely miss.
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 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.
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.
Far more comfortable than its reputation suggests. We remove infected pulp, clean and seal the canal, and have you back to normal fast.
A minor surgical procedure that removes the tip of the tooth root when infection persists. Microscopic precision, minimal discomfort.
One of the most under-diagnosed causes of tooth pain. We use advanced imaging to find fractures and determine the best path forward.
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.
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.**
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 AppointmentWe know a root canal isn't something you look forward to. Here's what patients say after they've been through it with us.
July 31, 2026
"Everyone is so nice!!!"
July 31, 2026
"The root canal was performed very gently and with great care"
July 31, 2026
"Dr. Diab and all the other dentists were really awesome and kind. They helped me identify all the dental work I needed to do!!"
July 31, 2026
"Dr Zied Diab was so reassuring today. I took my daughter in for assessment and he was very reassuring and walked us through every step of her treatment plan. A very lovely experience!"
July 31, 2026
"I am highly satisfied with the treatment I received from One Endodontics in Falls Church, Virginia. The team is exceptionally skilled and demonstrates genuine concern for their patients. My surgery was remarkably painless, and I experienced a swift recovery. I wholeheartedly recommend their practice. My doctor was Hassin Alhassany, DDS."
July 31, 2026
"Amazing!!"
July 31, 2026
"Good experience"
July 31, 2026
"I had a root canal done today with Dr. Zayd Diab at OneEndo, and I couldn’t be happier with my experience. From the moment I walked in, the customer service was outstanding. The entire staff was welcoming, kind, and professional, making me feel comfortable from start to finish. Dr. Diab was absolutely amazing. He explained every step of the procedure from A to Z, making sure I understood exactly what was happening and answering all of my questions. He was incredibly patient, gentle, and caring throughout the entire appointment. I was honestly surprised by how painless the procedure was—I barely felt anything! His skill and calm approach made what I thought would be a stressful experience incredibly easy. I highly recommend Dr. Zayd Diab to anyone needing endodontic treatment. I will definitely recommend him to my family and friends. Thank you, Dr. Diab and the OneEndo team, for such an exceptional experience!"
July 31, 2026
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July 31, 2026
"The Dr's are great and took care of my 11 year old. A very relaxing environment. Eveyone was so nice."
July 31, 2026
"Just amazing and friendly! Highly recommend"
July 31, 2026
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July 31, 2026
"Very friendly staff and dentists. They got me in quickly and were able to save a tooth that another doctor said would need an extraction. So glad I was referred to One Endodontics and Dr Adil!"
July 30, 2026
"Dr. Wu was so gentle and explained everything so thoroughly. I had that experience with other places and had developed a bit of fear of Dentist, but she Alleviated myfear with her compassion and gentleness."
July 30, 2026
"Staff is very friendly and helpful. Dr explained everything in detail and the procedure went very smoothly."
July 30, 2026
"Great experience !!! Everyone was very thoughtful and kind. Very professional. Procedure went smoothly."
July 30, 2026
"Excellent experience! Dr. performed a root canal treatment on me and did an outstanding job. The procedure was smooth, painless, and very professional. What impressed me the most was the exceptional care and attention from the entire team. They made me feel comfortable and safe at all times. Highly recommended!"
July 30, 2026
"I had a great experience with Dr. Al-Hassany for my first root canal. I was quite nervous, but he explained each step of the procedure and let me know what I was to expect. He worked to ensure my pain was well controlled and added additonal numbing as needed throughout the procedure. The staff were so nice, professional, and took the time to explain everything, including the total cost breakdown, billing, and my out of pocket portion. I will absolutely come back if I need additional endodontic care in the future. Thank you for a wonderful experience. Sarah."
Patient Care
"We take the time to answer every question, ensuring you feel confident in your care."
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.
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.
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.
Have questions about coverage or financing? Our team is happy to walk you through your options before your appointment.
Contact Us About CoverageFill 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.