Meet the Doctors


Dr. David Janton and Dr. Mang Shu concentrate on practicing modern dentistry, keeping in mind the fundamentals of traditional dentistry. Our patients are of all ages and we treat every patient as an individual. We listen first, diagnose and then discuss treatment options. This is a no pressure office with zero production goals and only proper care of your dental needs is our purpose. When you come to our office you can expect a meticulously clean office with very experienced, friendly staff.

Dental Associates of Rockville, LLC

David C. Janton, DMD

Dr. David Janton graduated from Tufts University School of Dental Medicine in 1995 with a D.M.D degree. He is a member of the American Dental Association, Connecticut State Dental Association as well as the Tolland County Dental Association. Dr. Janton has been a member of the SPEAR Education Study Club since 2007 where he is able to meet with other dentists to discuss difficult dental cases, as well as achieve continuing education.  

Being a second generation general dentist here at Dental Associates of Rockville as well as at Stafford Dental Associates, Dr. Janton's passion in dentistry stems from his desire to educate his patients. After more than 25 years, he still takes pride in caring for each of his patients too. Dr. Janton believes that the highest quality of dental care can only be achieved through the communication and trust between doctor and patient. Dr. Janton does a variety of procedures with a gentle touch, including crowns, extractions, fillings, root canals and improving patient smiles!

Dr. Janton has been awarded "Top Dentist" by Hartford Magazine as well as many other certificates and awards. At your visit, you can expect a listening ear and a thorough exam. Dr. Janton always treats patients the way he would treat a family member, always asking what he would decide if this patient were his mother, father, sister, or child. Dr. Janton provides gentle dental care with a conservative preventive approach and a treatment plan to meet each patient’s unique needs and desires.

In his spare time Dr. Janton loves to golf, spend time with his family and take care of his yard. 


Mang Chou Shu, DMD

Dr. Mang Shu graduated from the University of Connecticut, School of Dental Medicine in 2003 with a D.M.D. degree and has been here at Dental Associates of Rockville since 2012. Along with Dr. Janton, Mang also practices at Stafford Dental Associates. Dr. Shu completed his general practice at S.U.N.Y Stony Brook in 2004 and is a member of the American Dental Association as well as the Connecticut State Dental Association. 

Welcoming patients from children to seniors, Dr. Shu offers comprehensive dental care for the whole family. At Dental Associates of Rockville, Dr. Shu helps his patients with preventative and general dental services that improve their oral health, as well as cosmetic treatments that give them pride and confidence in their smiles. He also uses his years of experience and knowledge to help patients with complex cases.

Dr. Shu's sense of humor is reflected in the office daily. His light-hearted, approachable manner is shared with staff and patients alike. In his spare time, Dr. Shu loves to play tennis. Dr. Shu is married and has a son. Dr Shu also has two dogs.

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Meet the Staff


Say hello to Shannon!  She is our Office Manager with over 20 years experience in the dental field. Her extensive knowledge of dentistry can be relied upon to bring clarity to any questions or concerns ranging from treatment to finances.

Shannon's tremendous energy, passion, loyalty and professionalism can easily be seen in her day-today interactions with patients and co-workers alike. Shannon is always ready to greet you with a smile and to make you feel at home.

Shannon enjoys spending time with her husband, photography, plants and traveling. She is also the proud pet parent to two dogs and a cat.



Meet Sarah!  She has been in the dental field since 2015. Sarah is cross-trained for dental assisting and front office work, which makes her indispensable in every way. She is very friendly and kind. She takes pride in what she does and it shows in her performance at work.

Sarah has a very cheerful demeanor, answering the phones, making appointments, and greeting patients. Sarah can definitely make you feel welcome to the practice. She really enjoys what she does, and takes the time to get to know every single patient better to make them feel like part of the family.

Sarah has a daughter and a dog named Tank. In her spare time she loves going to the beach and hiking.



It is a pleasure to introduce Theresa!  She has been with Dental Associates of Rockville for over 20 years as a dental hygienist. She graduated from Springfield Technical Community College with an Associate’s Degree. Theresa loves to help people, loves what she does and finds it very rewarding.

Being able to contribute to a patient’s overall health through and working together to ensure they achieve a lifetime of good habits is what Theresa strives for. She has a loyal following of patients and when you meet her, you’ll know why.

In her spare time, Theresa loves gardening, working out, and spending time with family and friends.



This is Carole!  She is one of our dental hygienists and has been in the dental field for over 30 years. Carole has her Bachelor’s Degree in dental hygiene from the University of Bridgeport. As a dental hygienist, Carole is in charge of keeping patients’ teeth and gums healthy and responsible for educating patients about home care.

While Carole’s first priority is her patient's oral health, she loves talking with them and getting to know them and their families. Carole loves working here at Dental Associates of Rockville and it shows.

In her free time, Carole loves going to concerts, pool time, and day excursions. She also has 2 cats and a dog.



We would like you to meet Chelsea! She has been in the dental field since 2012. Chelsea is one of our dental assistants and always works with a smile. She enjoys dentistry and loves learning new advances in the dental field.

Working closely with Dr. Janton and Dr. Shu, she is hands-on with a variety of procedures that enhance and transform patients’ smiles and well-being. Chelsea has a warm personality and really cares about our patients.

During her free time, Chelsea enjoys the outdoors, hiking, and being around family. Chelsea is also a new dog mom to a puppy named Max.



May we introduce Brianna! She has been a valued employee of DAR since August 2021. Assisting with various dental procedures ranging from a simple exam to placing dental implants, Brianna strives to make our patients comfortable and their visit pleasant.

She enjoys the challenge of a busy schedule and keeps up on her education, looking to one day become a dental hygienist. In addition to being a dental assistant, Brianna also works part time as a server at a local food establishment.

In her spare time, Brianna loves spending time with friends and her dog Daisy.