to Smile About

Meet the Doctors

At AAC Orthodontics, we are dedicated to seeing you smile! Drs. Lisac and Deek offer a unique combination of experience, advanced technology and treatments, and personalized care to transform our patients’ lives by transforming their smiles.

Why Choose AAC Orthodontics

Choosing to receive orthodontic treatment can be a life-changing decision. At AAC Orthodontics, we are dedicated to making your orthodontic experience something to smile about. Our doctors and staff are friendly, attentive, and professional, and we care about giving you the beautiful smile you’ve always wanted.

Orthodontic care that is as unique as you are!

  • Dr. Lisac began practicing at AAC in 1992. He takes time listening to each of our patients, and providing treatments that meet the needs of each individual.
  • Our practice is professional and fun! Dr. Lisac, Dr. Deek, and each member of our staff are here because they are passionate about orthodontics, and they want to help you have a positive experience.
  • Braces are for all ages at AAC Orthodontics. We use the latest technology, including Invisalign®, to provide quality treatments for children, teens, and adults.
  • We care about your health, and we work hard to not only give you a beautiful smile, but a healthy smile that lasts a lifetime.

Please contact our Munster, Schererville, or Valparaiso orthodontic practice and schedule a complimentary initial consultation today!

How We
Can Help

With Us

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Great place! The ortho techs that take care of my daughter are extremely informative and helpful, especially Missy! I would highly recommend if in need of an orthodontic treatment.

Toni K.

Dr. Lisac and Dr. Deek are awesome! They always listen to the concerns of their patients and the wait is never long. The girls there are amazing too! Always look forward to going.

Kailey P.

I love my smile. Every time someone asks about my treatment I make sure to tell them to come see Dr. Deek and Dr. Lisac.


Great experience. My teeth were terrible and they worked their magic to give me a great smile. Thank you Dr. Deek and Dr. Lisac.

Khalid M.

I’ve had nothing but the best experiences while visiting this office. The staff is always so welcoming and friendly. I got my braces put on in July of 2020, and it has been an incredible journey so far!! Very clean, safe, and the wait is never long. I definitely recommend this practice 1000%!!

Cierra M.

If you’re interested in getting braces, this is the office to come to. Doctors and staff explain everything very thoroughly starting from the consultation to every visit after. Overall, I am always content with the service they provide.

Ivan R.