About Us


A Family of Smile Designers

Dr. Karen Guinn leads an amazing team at The Smile Agency in Pasadena, CA and West Covina, CA. She is passionate about orthodontics and dedicated to helping people all over the Los Angeles area get the smiles they’ve always wanted. The Smile Agency has helped thousands of Angelinos get all the confidence that comes with a healthy, beautiful smile.

At The Smile Agency, we offer the latest advances in braces and clear aligners. Our technology is amazing, but patients say that it’s the way we treat them…not their teeth…that really sets us apart. Our smile designers love what they do, and creating great smiles isn’t all they do. We treat you like family – from your first visit to your last. Dr. Karen Guinn is a Board Certified Orthodontist who brings thirty years of experience to the table. That means The Smile Agency is the perfect place to find out what all your orthodontic options are. It also means the smile you get at the end of your treatment will be amazing.

Dr. Guinn believes the difference is in the details, she has treated all kinds of cases from simple crowding, to severe bite corrections. She provides orthodontics for all ages, so whether you are looking into Invisalign or braces for yourself or your children: Smile… the orthodontic exam is free! As Dr. Guinn likes to say, “A Smile Never Dies…”


ABO Certification - Why It Matters

Dr. Guinn is a Board Certified Doctor. This means she has achieved the highest level of certification available in the orthodontic profession. It’s a distinction earned by fewer than 30% of all orthodontists.

Being Board Certified is just one more way The Smile Agency goes the extra mile to assure that our patients receive the best care available.


Meet The Team
The People Behind the Design

Dedicated to the design of your smile, our team is as fun and personable as if they were best friends with you. 








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