Dentist in Olney, Maryland

Olney’s trusted family dentists, now in their second generation.

Dr. Henry Lee founded this practice and cared for the Olney community for more than four decades. Today his sons, Dr. Alex Lee and Dr. Justin Lee, lead it, and they are welcoming new patients.

Rated 4.9 Stars on Google
Dr. Henry Lee, Dr. Alex Lee, and Dr. Justin Lee standing beside the Twin Dentistry sign and the 17721 address pillar on Georgia Avenue in Olney
New to Twin Dentistry?

The kind of dental office families stay with for years.

Twin Dentistry is a family-run practice on Georgia Avenue, now led by Dr. Alex Lee and Dr. Justin Lee, the sons of its founder. Every family here was new once, and we still welcome each one the same way: with time to talk, a thorough exam, and a team that makes you feel at home.

At your first visit, Dr. Alex or Dr. Justin will learn your dental history, listen to what you would like to change, and explain what they see in plain terms before recommending care. Their approach is preventive: they would rather catch something small early than treat something larger later.

We see patients of every age, so parents and children can be cared for in the same place.

If it has been a while since your last visit, or you are new to Olney, a short phone call is all it takes to get started.

Call (301) 774-2474
Dr. Henry Lee with his sons, Dr. Alex Lee and Dr. Justin Lee, of Twin Dentistry in Olney
“Our family has been coming to Dr. Lee’s practice for 12 years, and it’s always a great experience. The staff is professional and courteous, and Dr. Lee’s sons who have now taken over the practice are both excellent dentists.”
Andrew Marra Google review

Everyday dental care, and the rest when you need it.

Cleanings, exams, and preventive care for every age, plus cosmetic, restorative, and orthodontic treatment when you need it. Whatever brings you in, Dr. Alex and Dr. Justin will look at the full picture, explain your options, and help you decide what makes sense for you.

For every age

General and family dentistry

The regular visits that keep teeth and gums healthy, for children, teens, and adults. At each exam, Dr. Alex and Dr. Justin look for small changes and let you know early if something needs attention.

  • Cleanings and exams
  • Fluoride treatment
  • Sealants
  • Oral cancer screenings
  • Night guards
  • Sports mouth guards
  • TMJ treatment
  • Tooth extractions
Call (301) 774-2474

Cosmetic dentistry

Whether you want a brighter smile or would like to change how your teeth look, we start by asking what you hope to see, then walk you through the options that fit.

Includes in-office teeth whitening, veneers, and bonding.

Restorative dentistry

If a tooth is damaged, worn, or missing, Dr. Alex and Dr. Justin will explain how it can be repaired. Crowns, bridges, and other restorations are designed from a digital scan of your mouth.

Uses intraoral scanning and in-office 3D printing.

Periodontal care

If your gums feel tender, bleed when you brush, or seem to be pulling back, we will take a close look, explain what we find, and talk through what can help.

Includes non-surgical gum treatment.

Clear aligner therapy

If you have thought about straightening your teeth without traditional braces, Dr. Alex and Dr. Justin can tell you whether clear aligners are a good fit.

Both dentists have trained in ClearCorrect.

A dental emergency

A toothache, a broken tooth, or an injury to your mouth? Call us and tell our team what happened. We will help you with the next step.

Call (301) 774-2474
Meet your dentists

Before they were its dentists, Dr. Alex and Dr. Justin worked in this office as assistants.

Between them, they have worked chairside and at the front desk here, so they understand every part of a visit, not only the time spent in the dental chair. Both grew up in Rockville and trained at the University of Maryland School of Dentistry. Away from the office, they played together on Guam’s national soccer team.

Portrait of Dr. Alex Lee, DDS

Dr. Alex Lee, DDS

Dr. Alex brings a gentle, calm manner to every appointment. He captained the soccer team at the University of Maryland, College Park, and played professionally before dental school, and from 2013 to 2018 he worked here as a dental assistant during his off-seasons.

Continuing education in Solea laser treatment, SprintRay 3D printing, ClearCorrect clear aligners, and implant placement.

Portrait of Dr. Justin Lee, DDS

Dr. Justin Lee, DDS

Dr. Justin is focused on helping each patient build a foundation for long-term oral health, and he takes the time to explain what he sees along the way. He captained the men’s soccer team at Penn State, graduated from the University of Maryland School of Dentistry in 2023, and worked here as a dental assistant and at the front desk from 2014 to 2019.

Continuing education in ClearCorrect clear aligners, Solea laser treatment, SprintRay 3D printing, and implant placement.

Patient reviews

What Olney patients say about their visits.

“I’m normally very nervous about going to the dentist, but the entire team here made me feel completely at ease. From the moment I walked in, everyone was welcoming, kind, and patient. Doctor Alex Lee explained everything clearly, which really helped calm my nerves. The atmosphere was professional but also warm, and I left feeling cared for instead of stressed. I highly recommend this office to anyone who feels anxious about dental visits, you’ll be in great hands!”
Ian Seelig Google review
“Really great experience. The front desk worked very hard to verify my insurance when I didn’t have the proper documentation as a first-time patient. The dentist (Justin Lee) was very careful, conservative, and thorough to fill my cavity. They didn’t try to sell me on unnecessary procedures.”
Reed Sayre Google review
“Great experience for my daughter to get her first dental cleaning. The tech and dentist were very thorough and personable. The front office staff are also very warm and welcoming and easy to talk to. I would highly recommend if you are looking for a local Olney dental office.”
Isis Hill-Visscher Google review
“I’ve had unpleasant experiences at different dentists, so when I needed work done that couldn’t wait too long, I was dreading a dentist visit. However, upon seeing great reviews about Twin Dentistry, I decided to give it a try. Best decision ever! Literally everyone I interacted with was incredibly nice and friendly. I felt at ease, especially when Dr. Justin walked through the whole procedure and told me everything he was doing. It was an easy in and out appointment. I would gladly come back to this practice and come in knowing I’d be taken care of.”
Sasha H. Google review
“The practice is well organized and very efficient. My hygienist was very friendly and proficient at her job. I have been going to Dr. Lee’s office for over 40 years and getting the same excellent treatment throughout that entire period.”
Bill Gross Google review
“The staff was incredibly friendly and made us feel comfortable from the moment we walked in. Dr. Justin and Dr. Alex explained everything clearly and answered all our questions patiently. We were impressed with the modern equipment and the overall cleanliness of the office.”
Marivic Tecson Google review
“Excellent dental office and staff. I am typically seen by Tinny and Dr. Alex, both of whom are incredibly personable, patient, and professional. They take their time ensuring I am well taken care of and always make themselves available if I ever have any questions. Very fortunate to have such a great dentist and team. Highly recommend!”
Mark Metrey Google review
“The entire experience was positive. The staff out front was very helpful and pleasant. The dentist and dental assistant were very professional and gentle. I have a lot of fear of dental work but they made it much more manageable”
Paula Sponaugle Google review
“They explained everything they were doing before and during the appointment, so I always knew what to expect. They also took the time to give me helpful flossing tips and advice on improving my oral health.”
Josh Favin Google review
“I was so pleased with this practice. The staff was very helpful. Dr. Justin Lee was amazing. I got an appointment right after I called and feel so much better. I have always been wary to go to the dentist, but I was made to feel very comfortable. They’ve changed my mind. I highly recommend them.”
Donna Moeller Google review

Join our dental family today.

Call (301) 774-2474
New patients

Here is what your first visit looks like.

From your first phone call to the end of your consultation, here is what to expect, so nothing about the visit comes as a surprise.

Call (301) 774-2474
  1. Call the office

    Our team will find a time that works for you. We are open weekdays from 8:00 a.m. to 5:00 p.m., plus one Saturday a month by appointment.

  2. Bring a few things

    A list of the medications you take, any allergies or medical conditions, and your insurance information. If you have recent X-rays from another dentist, they are helpful to bring.

  3. Your consultation

    We review your current situation, explain any diagnosis, and cover your treatment options. Simple care can sometimes happen the same day. More involved treatment is planned for a second appointment.

Paying for care

With insurance, without it, or over time.

Cost is a fair question, and our team is glad to answer it before your first visit. Here are the ways patients pay for care at Twin Dentistry.

Payment options at Twin Dentistry
OptionHow it worksWhat it covers
Dental insurance We accept many dental insurance plans. Call and our team will confirm whether we accept yours. Coverage depends on your plan.
Cherry financing Monthly payment options through Cherry, subject to approval. Treatment costs, spread over time.

Cash, checks, and credit cards are also accepted.

Questions about cost? Call (301) 774-2474
Olney, Maryland

Look for the white brick sign on Georgia Avenue.

Our address runs down the white brick pillar beside the Twin Dentistry sign, so the office is easy to spot from the road. Patients visit from Olney, Sandy Spring, Ashton, and the surrounding area.

Twin Dentistry office at 17721 Georgia Avenue in Olney, Maryland

Twin Dentistry

17721 Georgia Ave.
Olney, MD 20832
Monday
8:00 a.m. to 5:00 p.m.
Tuesday
8:00 a.m. to 5:00 p.m.
Wednesday
8:00 a.m. to 5:00 p.m.
Thursday
8:00 a.m. to 5:00 p.m.
Friday
8:00 a.m. to 5:00 p.m.
Saturday
By appointment only
Sunday
Closed
Open one Saturday a month.

A family practice in Olney, with room for your family too.

Whether it is time for a routine cleaning or something has been bothering you, call the office. Our team will find a time that fits your week.

Call (301) 774-2474

Monday to Friday, 8:00 a.m. to 5:00 p.m., and one Saturday a month.

Call (301) 774-2474
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