Welcome To The Smile Agency

Orthodontics & Smile Design

Personalized Orthodontic Care in Pasadena and West Covina, CA

As your Orthodontist in Pasadena and West Covina, CA, Dr. Karen Guinn and the team at The Smile Agency are ready to help you love your smile. Dr. Guinn is a leading provider of high-tech treatment options, like Invisalign®, the Damon System and the Pitts 21 Smile System. The technologies she offers are amazing. They make your treatment faster and more comfortable and still enable her the give everyone a signature Smile Agency Smile, but it’s the way they treat you, not just the way they treat your teeth, that makes the Smile Agency the choice for children and adults looking for an orthodontist in Pasadena and West Covina – and all over the Los Angeles metropolitan area.

Dr. Guinn is board certified and The Smile Agency team offers the latest orthodontic treatment options available today. In addition to the options mentioned above, we also offer state-of-the-art tools to accelerate your treatment so you can spend less time in braces – and more time smiling. The way we see it, you should feel great about your smile while you’re in treatment, not just when your treatment is done.

At The Smile Agency, we don’t just offer orthodontic treatment. We offer a whole host of services designed to make you look great, feel great and kill it with confidence. Schedule a complimentary initial consultation today to find out more.


What People Are Saying

About The Smile Agency

“It’s honestly a great place. I love the staff and just the energy they give their patients. Honestly worth it. The care and love for your perfect smile is everything.”

Evelyn L.

“My experience with the smile agency was so great and there were nice with me and my family great service great way too keep me on track on my teeth issues hahahah.”

Hamlet N.

“I loved my braces experience at the smile agency. I came in to help fix my overbite and now the space is gone and I had a major improvement. 🙂 Dr. Guinn is awesome 🙂 ”

Vanessa V.

“Dr Guinn has treated 2 of my children. She is definitely a very advanced orthodontist. She is always very knowledgeable and welcoming to me and my family . We love The Smile Agency!”

Hermine A.

“Everyone is so nice and caring. They care about your dental health and well being.”

Jackie C.

“I was embarrassed to smile because of my gaps, The Smile Agency changed my life.”

Cherril C.


Why Choose The Smile Agency?


The Smile Agency offers comprehensive orthodontic care for children, adolescents and adults. Smile Design and Facial Esthetics in our state-of-the-art facility and all of our providers Orthodontist in Pasadena and West Covina, CA | Braces for Kids and Adults are board-certified. Our results speak for themselves!

We strive to provide energetic and fun loving care to each patient.


What People Are Seeing

The Proof Is In The Smile


Reach Out To Us

And Setup A Free Consultation

We have the skills to get you the smile you have always wanted and we would love to hear from you, even if you only have questions! Fill out the form below and someone will get with you soon!