Hilltop Dental Care is a premier dental office serving Thornton, CO and the surrounding area.

Address & Hours

Hilltop Dental Care

4243 E. 136th Ave

Suite 348

Thornton, CO 80602-6918

Phone: 720-274-1380

Fax: 216-584-1358

We are located in the King Soopers plaza, next to Magic Nails


9am - 6pm


9am - 6pm


8am - 5pm


8am - 5pm


8am - 3pm





Health & Safety Information can be seen below under Our Team.

About Our Office

The Hilltop Dental Care facility is conveniently located in Thornton, CO. Warm and inviting, we invite all patients to our facility. Updated with the most innovative dental equipment, each room was configured with the patient at the forefront. Our patients first experience starts with a warm smile from our receptionist, where patients are greeted and made to feel comfortable. Our facility has several examination rooms, as well as a private meeting area to discuss treatment. Our procedure space is prepared with the greatest level of dental equipment to guarantee that every individual has a pain-free and seamless appointment. Our team invites you to visit our spacious dental practice, Hilltop Dental Care in Thornton, so that we can offer you the treatment you need.

Our Team

John Justus


John Justus, D.D.S., is a General Dentist.

John Justus, D.D.S.

Dr. John M. Justus received his Doctorate of Dental Surgery degree from the University of Missouri at Kansas City in 1979. He completed an Oral and Maxillofacial Surgery internship at St. John’s Medical Center in St. Louis, Missouri, in 1981. Dr. Justus has limited his practice to providing basic oral surgery procedures for the Colorado area DentalWorks practices.

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Cindy Ding


Cindy Ding, D.D.S., is an Orthodontist.

Cindy Ding, D.D.S.

Dr. Cindy Ding has always been interested in biological sciences and learning about how the human body works. She pursued her Bachelor of Science in physiology and neurobiology from the University of Maryland. She continued her education and received her Doctor of Dental Surgery degree in 2013 from the University of Maryland School of Dentistry. She chose to focus her career in orthodontics because of how rewarding it is to see the physical results of her hard work. She loves a mental challenge and because each tooth needs to fit into a precise location in the mouth, it is a very fulfilling career. Helping a patient achieve the perfect smile that will impact his or her life positively is a privilege and honor to her.

Dr. Ding keeps her skillset sharp by taking several continuing education courses, such as Invisalign and Incognito. She is a member of the American Association of Orthodontists, American Dental Association, Elevate Dental Study Club and the Invisalign Women’s Study Club. She was also selected to be a member of the Omicron Kappa Upsilon Honor Dental Society, which accepts only the top 10 percent of each dental class.

When she is not creating beautiful smiles for her patients, Dr. Ding enjoys volunteering for Habitat for Humanity, and staying active through yoga and volleyball. Dr. Ding is an avid hiker, and has completed many “fourteeners,” including Quandary, Sherman, Grays, Torreys and Bierstadt!

Dr. Ding lives by the quotes: “Where there’s a will, there’s a way” and “A smile is a curve that sets everything straight.” She looks forward to making a positive impact in your personal and professional life!

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Scott Lowry


Scott Lowry, D.D.S., is an Endodontist.

Scott Lowry, D.D.S.

Dr. Scott Lowry grew up in Arvada, Colorado. He attended Colorado State University and went on to graduate from the University of Southern California School of Dentistry with a dental degree in 1999. After a one-year internship where he provided dental care to veterans at the Long Beach VA Hospital, Dr. Lowry returned to the University of Southern California School of Dentistry to participate in its two-year endodontic residency program. In 2002, he received his certificate from USC and returned to northern Colorado where he has been practicing endodontics ever since.

Dr. Lowry is an active member of the American Academy of Endodontics (AAE) and the Colorado Dental Association.

Dr. Lowry and his wife, Elizabeth, live in Firestone, Colorado. They have three young boys: Nathan, Matthew and Blake, and an adorable Chesapeake Bay retriever named Kita. Dr. Lowry enjoys snowmobiling, spending time on Lake Powell and being with family and friends.

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Caroline Stern


Caroline Stern, D.D.S., is a General Dentist.

Caroline Stern, D.D.S.

Dr. Caroline Stern believes in providing dental care that meets the individual needs of each of her patients.

Dr. Stern earned her bachelor’s degree in Spanish and minors in chemistry, biological sciences and leadership at the University of Denver in 2013. She then earned her Doctor of Dental Surgery degree at the University of Colorado School of Dental Medicine in 2018.

“I love the combination of artistry and science that goes into being a dentist. I love being able to work with my hands and think creatively on my feet, while applying my love for medicine,” Dr. Stern said when asked why she chose dentistry as her profession. She continued, “Another reason I love dentistry is the immediacy with which problems can be solved and patients can find relief. Lastly, I love that dentistry allows me to prioritize my family and friends who I love.

Dr. Stern takes continuing education courses that keep her up to date on the latest techniques and technology. She is a member of many organizations including American Dental Association, Colorado Dental Association, CDA’s New Dentist Committee, Metro Denver Dental Society, Hispanic Dental Association, American Academy of Public Health Dentistry and Delta Sigma Delta Dental Fraternity.

In her free time, Dr. Stern enjoys trying new foods, volunteering, yoga, Pilates and hiking with her dog named Millie. It’s important to her to stay involved in a variety of volunteer experiences; she currently volunteers with the Denver Rescue Mission as a meal server. In past, she’s volunteered her time and efforts on mission trips and with multiple dental groups, serving the community any way she can. Most of all, she enjoys volunteer work that focuses on getting underserved community members access to health care and translating for Spanish-speaking patients.

Dr. Stern’s favorite quote is by Henry David Thoreau, “Go confidently in the direction of your dreams. Life the life you’ve imagined.”

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Leanne M. Nichols


Leanne M. Nichols, D.D.S., is a General Dentist.

Leanne M. Nichols, D.D.S.

Leanne Nichols, DDS earned her Bachelor’s Degree in Psychology at the University of Colorado – Boulder in 2006. She went on to earn her Doctor of Dental Surgery in 2013 at the University of Colorado, School of Dental Medicine. Dr. Nichols enjoys providing comprehensive dental care to her patients to help them achieve optimal dental health. Dr. Nichols is a member of the American Dental Association, Colorado Dental Association, Academy of General Dentistry and Metropolitan of Denver Dental Society. Dr. Nichols has received awards from the American Association of Public Health Dentistry and the American College of Prosthodontists. Dr. Nichols in her free time enjoys hiking, skiing, stand up paddle boarding and cooking healthy foods for her family.

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Safety Measures

In light of the COVID pandemic, we are taking extra vigilance to ensure the health of you and our team. Please see the additional steps we are taking in our practices to ensure your safety.

We have reinforced our already comprehensive Infection Control procedures with our team members, which include:

  • Frequent handwashing
  • Use of clean masks and gloves with each patient
  • Increasing the frequency of thorough cleaning and disinfecting of all areas of the office

In addition we are also taking the following additional steps:

  • Instructing team members to stay home if they’ve traveled to high risk areas or if they have any COVID-19 related symptoms
  • Taking the temperature of all team members before each shift
  • Removing communal items that may carry the virus—magazines, toys, and beverage stations
  • Our team members will greet you at the door to check you in & take your temperature using a forehead thermometer
  • A team member will ask a series of questions to assess your risk level of exposure to COVID-19. You may be asked to reschedule your appointment if you are determined to be high risk
  • Guests accompanying patients to their appointments will be asked to stay outside of the practice. Exceptions will be made for children and patients needing assistance. In these cases, each patient will be limited to one guest.
  • We ask all our valued patients to arrive on time, not early.

If you develop any cold symptoms prior to your appointment, please consider rescheduling or utilizing our TeleDentistry website to be seen virtually.

We understand the longer dental practices remain closed to preventive care and treatment for early forms of dental disease, the more likely that patients’ untreated disease will progress, increasing the complexity and cost of treatment. It is recommended by the CDC that you minimize the number of visits by completing as much of your recommended treatment during your appointment.

Customer Testimonials

From checkup and cleanings, to transforming your smile, our dental family is here for yours. But don’t take our word for it. See what our patients are saying about us.

I had minimum waiting time, and everyone was very friendly and professional. The doctor kept me informed during the procedure and is just awesome. Thank youH.S.
Made an appointment with the doctor after a friend highly recommended her. It was easy to check in despite current covid rules, the staff was super friendly, and the doctor thoroughly explained my xrays with me. The staff as a whole seem to really care about their patients. Would definitely recommend!K.
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