Orthodontics can be life-changing

Meet our experienced doctors

Regarded as some of the most well-established and trusted orthodontic specialists in Chicago’s southwest suburbs, our experienced doctors, Dr. William Petty, Dr. Kathryn Bielik, Dr. Amy Seagraves and Dr. Theresa Karras strive to provide you with the best treatment possible using the latest cutting-edge technology.

An uncommon orthodontic experience

We promise to provide the quality care you deserve and friendly service you will love! Each day, we strive to earn your business. Our team is trained to provide convenient, flexible appointments that fit your busy schedule. Our goal is for every patient to leave our office with a beautiful smile that boosts self-confidence and inspires others to smile back.

About Us

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  • 5 star rating out of 5

    Dr. Petty & Dr. Bielik have always been highly recommended by my Dentist. My son needed a consultation for his teeth and of course my Dentist referred me to Dr. Petty & Dr. Bielik. We trust them 100% and we’re happy with the outcome of the appointment.

    Patricia R.

    5 Star Rating

  • 5 star rating out of 5

    This was my first appointment for a fitting for invisalign. The office was up to date, clean and the staff was beyond nice and knowledgeable. I would recommend anyone that needs an orthodontist to consider visiting this office.

    Joe H.

    5 Star Rating

  • 5 star rating out of 5

    The doctors and staff of Petty & Bielik Orthodontics are efficient, thorough, and dedicated to creating beautiful smiles. The staff is welcoming and helpful – they go above and beyond to ensure a great experience for their customers. Im very happy with my experience.

    Samantha G.

    5 Star Rating

  • 5 star rating out of 5

    Office is very clean and welcoming, I felt very comfortable during my consultation. They were very thorough during the exam process. Listened well to my concerns and helped me choose what’s best for me. I would recommend 10/10

    Sharon B.

    5 Star Rating

  • 5 star rating out of 5

    You are treated like family, and any questions you may have are answered in a manner that you throughly understand what is going on. I highly recommend them for your orthodontist needs.

    Buenta C.

    5 Star Rating

  • 5 star rating out of 5

    When I first came to Petty & Bielik, my teeth were quite literally all over the place. When I was done, it was my senior year of high school, and I received the “best smile” superlative out of my entire class. They know what they’re doing!

    Jeremiah C.

    5 Star Rating

  • 5 star rating out of 5

    The staff was very friendly and make you feel welcome as soon as you walk in the door. I was nervous for my appointment but everyone was great and explained things every step of the way. I’m looking forward to starting my Invisalign treatment!

    Amy J.

    5 Star Rating

  • 5 star rating out of 5

    I went to Dr. Petty when I was a teenager. All three of my children have also gone here. They are the best staff; so friendly and efficient. Also, the office is so clean and modern. I highly recommend Petty & Bielek!

    Kathy B.

    5 Star Rating