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.
August 12, 2026
"Everyone was professional and the procedure was done fairly quickly. The procedure was painless and they made sure to check up on me frequently to see if I was okay. I would recommend if you need a root canal."
August 12, 2026
"I can’t say enough wonderful things about One Endodontics in Fredericksburg! From the moment I walked in, everyone was incredibly kind, professional, patient, and reassuring. Dental procedures can be stressful, but they made me feel completely comfortable and cared for throughout the entire process. Dr. Zieb and staff took the time to explain everything, answer all of my questions, and genuinely listen to my concerns. I never felt rushed or like just another patient. Their knowledge, attention to detail, and compassion truly stood out to me. They were actually out of network with my insurance, but after my experience with them, I decided they were worth it and chose to pay out of pocket rather than go somewhere else. That says a lot about how much I trust and appreciate their care! I’m so grateful I found One Endodontics. They truly went above and beyond for me, and I would absolutely recommend them to anyone who needs an endodontist. Thank you to the entire team for being so amazing! ❤️"
August 12, 2026
"The entire staff amazing! My daughter has really bad anxiety but they had her relaxed and they kept her calm and made this a pleasant experience."
August 12, 2026
"Just finished getting a root canal at One Endodontics, and I honestly had an AMAZING experience! 🦷✨ Dr. Diab and his entire team were absolutely amazing! From the moment I walked in, everyone was professional, caring, patient, and reassuring. They even had the most soothing technique when applying the numbing medicine, which made such a difference! The hygienist and assistants were amazing, to say the least. They made sure I was comfortable every step of the way and continuously communicated with me throughout the process to make sure I was doing okay. They even provided noise-canceling headphones so I could listen to my music, which definitely helped! 🎧🙌🏽 Let’s be honest… dentistry is not for the weak! 😂 I’m always so nervous about something hurting or having a bad experience, but they completely changed that experience for me. They understand that dental work isn’t exactly anyone’s favorite thing, so they went above and beyond to keep me calm, comfortable, and reassured from beginning to end. They definitely set the bar HIGH! 👏🏽👏🏽 By far, this has been the best dental experience I’ve had thus far! I highly recommend Dr. Diab and the entire team at One Endodontics. ❤️ I just wish they did regular dental treatments too! 😂😂"
August 12, 2026
"I had a great experience today when my mom went in for her root canal. The staff was very friendly, welcoming, and helpful. Nancy and the doctor who cared for my mom were especially wonderful. They made sure she felt comfortable and well cared for throughout the whole experience. Thank you for providing such great service! ❤️"
August 11, 2026
"From the moment you get through walking out the door, there's so much warmth and kindness. Dr. Zuaitar was great. He explained everything, answered my questions, managed my pain made sure I was comfortable throughout the process."
August 11, 2026
"Dr. Diab is simply the best"
August 11, 2026
"A bit pricey, but they are very informative and polite. They act like they genuinely want to help you. If/ when I can afford them, I will come back"
August 11, 2026
"Excellent experience. Thanks so much!"
August 11, 2026
"I honestly cannot say enough good things about my experience at One Endodontics in Falls Church. I went in for a root canal, and from the moment I walked through the door, the entire experience was exceptional. The root canal itself took only about 48 minutes, which was incredible, but what stood out even more was the level of patient care, professionalism, and attention to detail throughout the entire visit. I felt completely taken care of from beginning to end. Dr. Wang, Lu Lu, and Jen were all absolutely amazing. Every one of them was attentive, professional, kind, and genuinely made me feel comfortable. They worked together seamlessly and made what can normally be a very stressful experience feel surprisingly easy. Considering this was emergency call and they arranged the schedule to accommodate. One small detail really says a lot about their level of care: I had asked ahead of time if I could have some water when I arrived, and they accommodated me right as I was walking in. It may seem like something small, but that kind of attentiveness is exactly what makes a patient feel heard and cared for. The procedure was efficient, the staff was phenomenal, and the patient care was immaculate. You can tell this is a team that genuinely cares about their patients and takes pride in what they do. If you need a root canal or endodontic treatment, I would highly recommend One Endodontics without hesitation. Dr. Wang, Lu Lu, and Jen — thank you for making an experience I was definitely nervous about so much easier than I expected. Five stars doesn’t feel like enough. Truly outstanding care!"
August 11, 2026
"Everyone is so lovely at this practice! I felt very relaxed the whole time I was with the doctor/assistants. They were all extremely nice and explained the whole process so I knew what was happening. I have been to other dental places and have left crying with how I’ve been treated. Can’t recommend them enough!"
August 10, 2026
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August 10, 2026
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August 10, 2026
"They did a fantastic job with my root canal treatment 😁"
August 10, 2026
"Wonderful experience from start to finish. The Doctors and staff are excellent!"
August 10, 2026
"Dr.Diab was great and his assistant. Made the entire experience comfortable and painless. Would definitely recommend to anyone"
August 10, 2026
"Professional care and exceptional consideration of patient concerns are hallmarks of One Endodontics. Highly recommend them to anyone."
August 7, 2026
"I haven’t seen a dentist in years, so I was a bit uneasy going into my visit. Thankfully, the staff made my visit quick and easy. I felt comfortable throughout my root canal - so much so that I almost dozed off! Highly recommend! 🦷"
August 7, 2026
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August 7, 2026
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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.