About Karen E Guinn, DDS


The Smile Agency Orthodontics & Smile Design

The Smile Agency Orthodontics & Smile Design is a dental and orthodontic practice with locations in West Covina and Pasadena, California. Skilled orthodontist, Karen Guinn, DDS, and her team make the practice a top choice for local residents, offering a wide range of advanced treatments and services to create ideal smiles.

At The Smile Agency Orthodontics & Smile Design, clients can do more than just straighten their teeth. Dr. Guinn and her team boast in-depth consultations to explore oral health goals with a variety of treatment options. The team prioritizes maintaining natural teeth and limits the use of extraction.

The Smile Agency Orthodontics & Smile Design treats a wide range of dental complications, including gummy smiles, malocclusion, teeth grinding, temporomandibular joint pain, snoring, and more. Advanced treatments like Botox® injections, transcutaneous electrical nerve stimulation (TENS), braces, Invisalign®, teeth whitening, snore guards, and more are offered.

The team at The Smile Agency Orthodontics & Smile Design wants patients to have their ideal smile with great features besides their teeth too. They want patients to appreciate the whole package, including their teeth, gums, lips, and skin.

Whether you’d like to plan a complete smile makeover or to treat pain or discomfort associated with your teeth or jaw, Dr. Guinn and her team can help. Book your one-on-one consultation by phone or online at The Smile Agency Orthodontics & Smile Design today.


Words from our patients

  • Google

    "The Smile Agency is an excellent service provider as it regards Orthodontics."

    Carlos P.
  • Google

    "Great experience thus far! Staff is super nice and accommodating. Can't wait for my final reaults. Thank you Dr. Guinn!"

    Dahlia S.
  • Google

    "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..."

    Hamlet N.
  • Yelp

    "I'm an Invisalign patient here and so far I love it! I have an overbite that is slowly going away as I go through the process. Very excited with my journey!"

    Josselyne M.
  • Yelp

    "They are soooo nice and accommodating!!! I'll be coming back for all of my orthodontist needs!! Dr. Guinn is amazing!!!"

    Lauren J.
  • Yelp

    "Dr Guinn and her staff are amazing, and they've really helped me transform my smile!"

    Rebecca S.