About Dental Horizons

We’re the kind of dental office that can support you through all phases of life.

Caring for Longmont since 2008, with comfortable treatment, honest communication, and a whole-body perspective.

Our Story

Dental Horizons was built on a simple belief: dentistry should make your life better, not just your smile.

That means slowing down enough to explain what’s going on, connecting what we see in your mouth to your overall health, and building trusting relationships that last.

Dental Horizons was proud to share our philosophy on Colorado Health Matters on KWGN Channel 2. The feature shared valuable insights into our integrative dental care philosophy, highlighting our commitment to connecting oral health with comprehensive wellness—especially focusing on the vital links your mouth and your body. We are grateful we were chosen to demonstrate how our approach helps our patients receive the highest standard of oral care.

At Dental Horizons, we are committed to protecting, strengthening, and maintaining healthy, beautiful smiles, and elevating overall health.

Watch our Colorado Health Matters feature

Dental Horizons core values and office vision

Our Core Values

Our Core Values of Gratitude, Harmony, Excellence, and Stewardship support our office vision to Do More, Be More, and Give More, which allows us to have an impact on our Team, our Patients, and our Community.

We Listen first.

Explain clearly.

Recommend honestly.

Treat the whole person.

Close-up of a lighthouse, the Dental Horizons emblem of guiding patients

Why The Lighthouse?

Representing a beacon of light that helps patients navigate the path to optimum oral health, we chose a lighthouse to remind each person in our care that we’re here to help guide them to a healthy smile at a pace they feel comfortable with.
We’re committed to walking with you on your journey to a healthy, strong, and confident smile, and we’re grateful for your trust in us along the way!

Our lighthouse represents guidance: a steady, reassuring presence that helps patients see the path ahead and make informed decisions about their health.

Meet Dr. Kelson

Dr. D. Andrew Kelson, DDS

Dr. Kelson earned his dental degree from The Ohio State University, graduating Cum Laude, then completed an Advanced Education in General Dentistry at the University of Michigan. An educator at heart, he brings a meticulous, gentle approach and a deep interest in whole-body, airway-focused care.

As a dentist who guides generations to healthy smiles, Dr. Kelson is focused on providing comprehensive dentistry with an empathetic ear. He believes each patient should own and understand their individual health care, and as a physician of the oral cavity, he serves to share information to help them make informed decisions.

Outside the office Dr. Kelson is a strong supporter of our community, he enjoys cycling, reading, IT, family history, and time with his wife and two children. He is a self-proclaimed nerd who loves helping patients find their best smile!

Meet Dr. Ribbens

Dr. Jameson Ribbens, DDS

Dr. Ribbens earned a Nutrition Science degree from the University of Minnesota, worked in genetic-medicine research at Johns Hopkins Medical Institute, and returned to the University of Minnesota to complete his Doctor of Dental Surgery in 2017. His science-first approach is conservative, proactive, and focused on long-term health.

Patients notice his calm, reassuring manner delivering compassionate and effective care that helps to optimize his patient’s oral health.

Away from the practice, Dr. Ribbens enjoys cycling, skiing, guitar, and time with his wife Diedre and their children.

Together, Dr. Kelson and Dr. Ribbens bring more than 30 years of combined experience.