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Welcome to Our Practice

Welcome to Rockville Dental Center, Your Dentist in Rockville, MD

Welcome! The dental professionals at Rockville Dental Center are pleased to welcome you to our practice. We want all our patients to be informed decision makers and fully understand any health issues you face. That's why we've developed a web site loaded with valuable information about dental and dental problems and treatments. We encourage you to visit this site whenever you have concern about your teeth.

Our web site also provides you with background about our, staff, office hours, insurance policies, appointment procedures, maps, directions to our office in and other useful information. We know how hectic life can be and are committed to making our practice convenient and accessible. And we want you to feel confident that when you choose , you're working with doctors and other professionals who are qualified, experienced and caring.

Please take a few moments to look through this site to get a better feel for Rockville Dental Center's capabilities and services. We also invite you to email or call our office at any time to request an appointment or ask any questions. Thank you.

Rockville Dental Center

Our office is located right next door to the Rockville City Police Department. We are only 3 minutes away from our previous location

Parking Information: Please enter the parking lot and drive down to Level P1 (First Level of the under garage) and park in any of the reserved parking spaces marked for Rockville Dental Center. Parking is free for our patients.

Membership Plan

Rockville Dental Center Membership


Meet Our Staff

Learn Who We Are

  • Dr. Jianming Duan
    (aka Dr. Jimmy)

    Dr. Jianming Duan (aka 'Dr. Jimmy') graduated from the prestigious University of Pennsylvania, School of Dental Medicine. He brings state of the art dentistry to the practice, including a new digital X-ray system, Lumineers, Invisalign/ClearCorrect (Invisible braces), rotary endodontic system, and dental implants. The latest technologies of dentistry and his outstanding training background allow him to provide the highest quality of comprehensive dental care. 

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  • Dr. Steven Liu

    Dr. Steven Liu earned his DMD from the University of Pennsylvania, School of Dental Medicine. Dr. Liu pursued two post-doctoral certificates in Periodontics (healthy gums), Prosthetics (tooth replacement) and Fixed Prosthodontics, as well as Implant Surgical and Prosthetic training. Dr. Liu was an assistant professor/clinical educator of Restorative Dentistry in the Department of Preventive and Restorative Sciences and the director of the Implant Dentistry Course at the University of Pennsylvania.

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  • Dr. Susan (Shuyan) Rofe

    Dr. Susan (Shuyan) Rofe grew up in China where she graduated from dental school. After moving to the USA she first obtained a Master's Degree in Computer Science, and she later went back to dental school at NYU where she graduated in the top percentile with her DDS degree. After dental school, Dr. Rofe went on for advanced general residency training at the University of Michigan Hospital where she worked with cancer patients as well as other complex medical patients. After residency training, she worked both in a public health clinic as well as private practice. 

    Dr. Rofe moved to the state of Maryland in 2017 to be closer to her parents. In addition, Dr. Rofe (Captain Rofe) is a commissioned dental officer for the Maryland National Guard. Dr. Rofe is well-loved by both her colleagues and her patients for her kindness, gentleness, and compassion towards people. Dr. Rofe is a passionate learner; she has attended over 250 hours of continuing education classes. Dr. Rofe recently finished the two-year implant Continuum Course at University of Maryland School of Dentistry. She is now placing implants at our clinic. 

    In her spare time, Dr. Rofe enjoys spending time with her family, serving in the Army, reading, photography, running and traveling. 

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  • Dr. Guanglin Li

    Dr. Guanglin Li was born in China and raised in Fairfax, Virginia. Dr. Li graduated with dual majors in biology and economics from the University of Virginia (go hoos!).. Following undergraduate studies, Dr. Li pursued a lifelong dream of becoming a dentist, graduating with honors from the esteemed Arizona School of Dentistry. During her time there, she trained at multiple public health facilities across the country, helping underserved communities. Since then, Dr. Li has been committed to providing high-quality and comprehensive dental care, blending expertise with empathy to create positive experiences for patients. Dr. Li currently resides in Columbia, Maryland, with her husband, who is also a dentist. Dr. Li finds joy in both personal and professional pursuits. Outside the dental office, they thrive on an active lifestyle, enjoying workouts, outdoor adventures, and yoga sessions; together they also love exploring new culinary delights in local restaurants. Dr. Li, driven by a shared passion for dentistry and a love for life's simple pleasures, continues to inspire health and happiness in her community, one smile at a time.

    Coming soon!


Featured Articles

Read about helpful topics

    Your Rights and Responsibilities as a Patient

    Patient Rights You have a right to choose your own dentist and schedule an appointment in a timely manner. You have a right to know the education and training of your dentist and the dental care team. You have a right to arrange to see the dentist every time you receive dental treatment, subject to ...

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    Crowns and Bridges

    Bridges Bridges are natural-looking dental appliances that can replace a section of missing teeth. Because they are custom-made, bridges are barely noticeable and can restore the natural contour of teeth as well as the proper bite relationship between upper and lower teeth.Bridges are sometimes referred ...

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    Teeth that are badly stained, shaped, or crooked may be improved by a veneer placed on the surface of the affected teeth.Veneers are thin pieces of porcelain or plastic cemented over the front of your teeth to change their color or shape. Veneers are used on teeth with uneven surfaces or that are chipped, ...

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    Invisalign's® invisible, removable, and comfortable aligners will give you the beautiful straight teeth you've always wanted. And best of all, no one can tell you're wearing them. Invisalign® is great for adults and teenagers. What is Invisalign®? Invisalign® is the invisible way to straighten your ...

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    April 2022 Dental Newsletter

    The Importance of Preventive Care: Maintaining Good Oral Health Preventative dental care is a significant part of overall dental health, but it's often an afterthought. Our dedicated dentist sees many patients who don’t keep up with consistent preventative oral care and then must fix the problems ...

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    Frequently asked questions: dental fillings Are dental amalgams safe? Is it possible to have an allergic reaction to amalgam? Is it true that dental amalgams have been banned in other countries? Is there a filling material that matches tooth color? If my tooth doesn't hurt and my filling is still in ...

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    Sealants are liquid coatings that harden on the chewing surfaces of teeth and are showing a great deal of effectiveness in preventing cavities—even on teeth where decay has begun. The pits and grooves of your teeth are prime areas for opportunistic decay. Even regular brushing sometimes misses these ...

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    Pain can occur in any number of places in your mouth: teeth, gums, roots, the palate, tongue and jaw. Cavities are a common culprit causing pain. Untreated cavities can impact nerves because of infections of the tooth and gums. Impacted and abscessed teeth and sore jaws from teeth grinding are other ...

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    Simple toothaches can often be relieved by rinsing the mouth to clear it of debris and other matter. Sometimes, a toothache can be caused or aggravated by a piece of debris lodged between the tooth and another tooth. Avoid placing an aspirin between your tooth and gum to relieve pain, because the dissolving ...

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    Scaling and Root Planing

    Some cases of acute periodontal (gum) disease that do not respond to more conventional treatment and self-care such as flossing may require a special kind of cleaning called scaling and root planing. The procedure begins with administration of a local anesthetic to reduce any discomfort. Then, a small ...

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Our Location

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Hours of Operation

Our Regular Schedule

Primary Location


10:00 am-7:00 pm


7:00 am-7:00 pm


7:00 am-4:00 pm


7:00 pm-7:00 pm


7:00 am-7:00 pm


8:00 am - 2:00 pm | By Appointment Only