Dentistry
Thy B. Nguyen, DDS
Crown Dental Care
Dr. Thy B. Nguyen is a general and cosmetic dentist at Crown Dental Care in Rockville, MD. Born in Vietnam and raised in Gaithersburg from the age of eight, he treats patients in English and Vietnamese — so a crown, a root canal, or an implant plan can be explained in the language a family actually thinks in.
Background and training
Dr. Nguyen earned a Bachelor of Science in biology from The George Washington University before completing his Doctor of Dental Surgery at the University of Maryland Dental School in Baltimore. He graduated at the top of his class, was selected for the Gamma Pi Delta Prosthodontic Honor Society, and was elected president of the Gorgas Odontological Honorary Society, a merit-based organization.
He went on to complete a residency in advanced general dentistry in Baltimore, where his colleagues elected him chief resident and he received the Harry W. Dressel Jr. Award, given for clinical proficiency and total patient care.
Why patients choose Dr. Nguyen
That residency is worth weighing when you compare general dentists. It is an additional year of hospital-based training past dental school, concentrated on complex restorative cases and patients with medical complications — the background that makes a general dentist comfortable keeping work in-house that would otherwise be referred out to a specialist.
Patients most often see him for cleanings, consultations, bridges, root canals, and dental emergencies, and he carries a 4.93 out of 5 overall rating on Zocdoc. He is recognized as a top dentist in the Maryland region and has appeared as a dental expert in the TOP Doctors Interviews series carried on CNN, FOX News, and CNBC.
Practice focus
General and preventive dentistry, cosmetic dentistry, dental implants, Invisalign clear aligners, dentures, root canal treatment, periodontal care, and emergency dentistry for children and adults.
Languages and access
Dr. Nguyen speaks English and Vietnamese and sees patients at Crown Dental Care, 1900 Chapman Avenue in Rockville — convenient to North Bethesda and the Pike District. Call (301) 241-0770 to confirm availability and which dental plans the office participates in before booking.
Profile last fact-checked August 16, 2026. Information reflects publicly available sources and may change. Confirm details directly with the practice before booking.
How Dr. Nguyen compares
Context from the 139 providers we track across Bethesda and Montgomery County.
The only provider we list offering root canal treatment
1 of the 130 providers who list their focus areas name root canal treatment.
We list 4 dentistry providers serving North Bethesda.
1 of 5 Vietnamese-speaking doctors
5 of the 139 providers in our registry (4%) practise in Vietnamese, across 4 specialties.
1 of 8 from University of Maryland School of Dentistry
8 of the 107 doctors whose medical school we record studied at University of Maryland School of Dentistry.
Medical school: University of Maryland School of Dentistry — Baltimore, MD, United States.
Figures describe the 139 providers currently in the MyBethesdaDoctor registry as of August 2026 — a curated directory, not a census of every doctor in Montgomery County. How we build this list.
Where Dr. Nguyen sits by experience
Dr. Nguyen finished dental school in 2005, 21 years ago. Of the 135 providers in our registry whose graduation year we could verify, 93 finished earlier, 40 finished later, and 1 finished the same year.
1965–69
1 provider finished 1965–19691970–74
2 providers finished 1970–19741975–79
4 providers finished 1975–19791980–84
13 providers finished 1980–19841985–89
12 providers finished 1985–19891990–94
14 providers finished 1990–19941995–99
27 providers finished 1995–19992000–04
20 providers finished 2000–2004Dr. Nguyen2005
2005–09
19 providers finished 2005–20092010–14
17 providers finished 2010–20142015–19
4 providers finished 2015–20192020–24
2 providers finished 2020–2024Among the 21 dentists we list, 11 finished dental school earlier — the median for that group is 2004.
All 12 bands
| Graduated | Providers |
|---|---|
| 1965–1969 | 1 |
| 1970–1974 | 2 |
| 1975–1979 | 4 |
| 1980–1984 | 13 |
| 1985–1989 | 12 |
| 1990–1994 | 14 |
| 1995–1999 | 27 |
| 2000–2004 | 20 |
| 2005–2009 — Dr. Nguyen | 19 |
| 2010–2014 | 17 |
| 2015–2019 | 4 |
| 2020–2024 | 2 |
Figures describe the 139 providers currently in the MyBethesdaDoctor registry as of August 2026 — a curated directory, not a census of every doctor in Montgomery County. Based on the 135 of 139 profiles with a graduation year we could verify against a primary source; the remaining 4 are left out rather than estimated. How we build this list.
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