Welcome To The Smile Agency

Orthodontics & Smile Design

Personalized Orthodontic Care in Pasadena and West Covina, CA

Whether you are a child, teen, or adult, visiting the orthodontist is a very different experience than in the past. Board certified orthodontist Dr. Karen Guinn and The Smile Agency team offer the latest orthodontic treatment options available today with the Damon Braces System which utilizes NASA space age technology and Invisalign®, the “braceless” alternative to straight teeth. Invisalign Teen® is a great option for Pasadena & West Covina teens who may feel embarrassed or discouraged by traditional metal braces. We also offer leading edge orthodontic techniques to expedite treatment such as TADS, Propel, and Acceledent.


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 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!