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Office Hours

  • Monday to Friday8:00am to 5:00pm


Dr. Andrew Kelson

At Dental Horizons in Longmont, CO, we are passionate about transforming smiles to help our patients live their best lives. Our team, led by Dr. Andrew Kelson, is committed to providing personalized and diligent care tailored to meet your unique needs and goals. From leading technologies that enhance your treatment experience to open and honest communication, we prioritize your comfort and satisfaction every step of the way. When you choose us, you can trust that we will go above and beyond to positively impact your smile and quality of life. Let’s work together to optimize your smile and achieve your dream results!

Meet Our Doctor

Dr. Jameson Ribbens

Focused on delivering compassionate and effective care that helps optimize his patient’s oral health and smiles, Dr. Ribbens devotes himself to making dental visits comfortable, efficient, and fun!

A Message From Our Doctors

3 Things Every Patient Should Know


Your Mouth Is Connected to Your Body.

As dentists in Longmont, CO, we can provide insights to your primary care physician about oral symptoms linked to other health issues in the body.

Dentistry Is Not What It Used to Be.

With today’s leading dental technologies, such as lasers, intraoral scanners, digital radiographs, and milling machines, we can provide you with more efficient and effective dental care. If you have had a bad dental experience in the past, it doesn't have to define your future visits. We assure you that we will always do everything possible to help you take a different perspective on caring for your smile.

Our Relationship Is NOT Transactional.

At our dental clinic in Longmont, we prioritize your dental health and value our relationship with you. Our relationship is built on mutual trust, honesty, and open communication. We believe in overcommunicating because we are passionate about partnering with you to ensure your well-being. We do not base our treatment recommendations on insurance benefits but on what is best for your dental health. Though we will help you utilize any benefits available at our clinic, we will always recommend the best solution for your individual needs.

Top Reasons

We Could Be Your Perfect Dental Clinic in Longmont

Focused On You

  • We treat you & not just your teeth
  • Your optimal oral health is our focus
  • Treatment recommendations are always personalized

Proven Technologies & Techniques

  • Trusted technologies to heighten your care
  • We create a variety of dental restorations in-house
  • Providing sleep apnea treatment & goop-free impressions

Comprehensive Care

  • Myriad preventive, restorative, & periodontic services
  • Numerous cosmetic solutions available
  • Your comfort & needs are our priorities


Welcoming New Patients

At Dental Horizons, we are committed to providing quality dental care to your family members. We believe in protecting, strengthening, and maintaining beautiful smiles. Please schedule a consultation with us today to prioritize your overall oral health.

In Longmont

Dental Services

Is Your Child A Candidate

For HealthyStart®?

If your child is experiencing misalignment, crowding, bite issues, or sleep-disordered breathing, the HealthyStart system can help. It is a non-invasive, non-pharmaceutical, and pain-free approach to address these issues. Click the link below to learn more about this system and schedule a free consultation at our dental clinic.

We Accept

Most Insurance Plans

We’re committed to doing everything we can to help our community members receive the high-quality, effective, and long-lasting dentistry they deserve. In addition to being an unrestricted practice that will always provide the care you require, we’ll advocate for you to receive any insurance benefits you have paid for. No insurance? Our affordable dental membership plan can help. Ask us for details!


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