Tell us about your lifestyle and goals.
Welcome to 303 Smiles
Let Us Treat You to the Smile You’ve Always Wanted
Invisalign & Braces & for Kids, Teens & Adults
Reserve Your Free ConsultGreenwood Village Invisalign & Braces
A Lifetime of Smiles Starts Here
Welcome to 303 Smiles, where our smile promise is simple: to deliver a hand-crafted, amazing smile made just for you.
For more than 20 years, we’ve listened to your needs, understood your goals, and designed treatments to match your lifestyle. Come visit our state-of-the-art office for the premium patient experience!
What Makes Us Different?
Our Proven Process
The 303 Smile Design
Our approach at 303 Smiles is all about you — with personalized care and innovative participation programs designed to fit your lifestyle, budget and smile goals.
Innovative Treatment Designs
The 303 Signature Smile
Our one-of-a-kind, proven process at 303 Smiles revolves around you. Designed to fit your lifestyle and treatment goals, we deliver custom smiles using innovative technology and unparalleled expertise.


Unparalleled Expertise | Award-Winning Orthodontist | Founder of 303 Smiles
Meet Dr. Derek Straffon
Greenwood Village orthodontist Dr. Derek Straffon blends unparalleled expertise with a compassionate, patient-centered approach.
A published author and industry key opinion leader, he’s earned a glowing reputation for designing smiles that light up the room and last a lifetime. Handcrafted through our proven process, our caring team tailors comfortable, fast, and beautiful 303 Signature Smiles for kids and adults alike.
Meet the DocGet Your Smile from the Expert
- Orthodontic Industry Key Opinion Leader
- Advisor to an Orthodontic Technology Company
- Invisalign® Practice Partner
- Eagle Scout with a Bronze, Gold & Silver Palms
- Published Author
- Recognized by ABC Television
- “Top Orthodontist” - 5280 Magazine, Since 2009
- “Top Dentist” - USA Top Dentists, Since 2009
- Founder of 303 Smiles
Invisalign Treatment Options
For All Ages
Braces for Kids, Teens & Adults
High-tech to Work & Feel Better
Best of Both Treatments,
Tailored for You
Hybrid Invisalign + Braces Plan
At 303 Smiles, you don’t have to choose between braces and Invisalign. Dr. Straffon and our smile experts will do whatever it takes to get you the healthy, straight smile you deserve — including customizing a revolutionary combination treatment tailored to your unique lifestyle and smile needs.
Learn MoreHow it Works
People Love to Be at 303
Raving Fans
First-Class in Every Way
“Dr. Straffon and his team are first-class in every way! From the day I walked into their office for a consultation to the day I left with my retainers, I have been treated with kindness, dignity, and respect."
— Kari W. —
Gives His Full Attention & Care
“It's not often in today's world that a doctor gives his full attention and care to each of his patients. I highly recommend Dr. Straffon to anyone hoping to improve their smile. I know he made ours more beautiful and bigger!”
— Denise W. —
Best of the Best
“I loved my experience at 303 Smiles. My teeth look amazing. The staff are the best of the best! They were accommodating, extremely communicative, and so friendly and sweet.”