Looking to upgrade your dental experience? You're in the right place!
Welcome to Designer Dentistry & Smiles, where we treat our patients like family! A warm waiting room to wait in, infectious smiles and laughter, people who care about your needs and goals, and who really listen. This is the mission of the doctors and staff at Designer Dentistry & Smiles. Whether you visit a dentist regularly or have some catching up to do, we value you as a person and will give you options to improve your health and achieve a beautiful smile, with no judgment.

I was born right here in Sioux Falls. I was lucky enough to have attended Washington High School downtown for 2 years prior to moving to the new building on the east side. I was among the first class of students to graduate from the “new” high school. After graduation, I went to UNL in Nebraska for college. I graduated with honors from UNMC College of Dentistry in 2000. I decided to further my education by completing a residency at Meriter Hospital in Madison, WI. There I gained a tremendous amount of knowledge and experience in all aspects of general and specialty dentistry. I was asked to stay on to help teach at the program, while starting my career in cosmetics and private dentistry.
I have 4 children. I am blessed to have both 2 daughters and 2 sons. We enjoy spending time on the farm. We have a menagerie of chickens, pigs, dogs, cats, miniature cattle and even a tortoise. I love photography and have plenty of great subjects between the wildlife, kids and the farm critters.
Next to my family, my biggest passion is dentistry. As a dentist in Sioux Falls I spend countless hours traveling to partake in the best continuing education courses I can. In particular, I enjoy orthodontics, TMJ treatments and restorative dentistry. A newly emerging area of dentistry that I have been learning about is treatment for sleep apnea. I love that I can offer solutions through dentistry that not only enhances people’s smile but also enhances their total body health and wellness.
For fun I like to ride the bike trails and visit the zoo. I love visiting our downtown area taking in shopping, restaurants and the sculpture walk.

I was born and raised in Pierre, SD where I attended Riggs High School. I spent my spare time swimming as a member of the Pierre swim team, playing the trombone in the school band, singing in the chorus and acting in school plays. After high school, I studied Biology at the University of Nebraska Lincoln and was a member of the Synchronized Swimming Team. I applied to dental school and was accepted and able to attend at the end of my junior year of college. I attended the University of Iowa College of Dentistry in Iowa City, IA where I graduated in June of 2008.
I had several interesting dental conditions as a child including impacted teeth, congenitally missing teeth and the need for orthodontics. I was always curious as to what was happening on the other side of the chair during my treatment and that led to my decision to become a dentist while I was still in high school. I have been interested and passionate about dentistry ever since. I am a member of the South Dakota Dental Association and the American Dental Association and enjoy furthering my dental knowledge through various continuing education opportunities and collaborating with fellow dentists. I love getting to know my patients and making them feel comfortable even when they may have reservations about coming to the dentist. I know that many patients are anxious about coming to see the dentist and I really strive to make their experiences as pleasant as possible. I always strive to create a judgement free zone and work together with patients to deliver what they really want for their mouths.
I married my husband Michael, who is also from Pierre, in June of 2008. We have been blessed with three amazing children who occupy most of my free time these days. We love to spend time at the Butterfly House and the Zoo and visit swimming pools and parks as often as we can when the weather is nice. When I manage to carve out some free time I love to knit and enjoy baking. I also love going to the movies and exploring the other opportunities Sioux Falls has to offer.

Dr. Cassondra Heinz received her undergraduate degree from the University of Minnesota where she majored in Biology. She then attended the University of Minnesota School of Dentistry where she received her Doctor of Dental Surgery degree.
Dr. Heinz enjoys all aspects of dentistry and is particularly interested in orthodontics and airway dentistry. She is an affiliate with The Breathe Institute and a provider with Healthy Start. Dr. Heinz takes pride in completing numerous hours of continuing education every year to stay at the forefront of the latest advancements in dentistry. She enjoys treating patients of all ages and is passionate about helping patients value their dental health while providing gentle, high-quality care. She strives to make every visit a positive experience.
Dr. Heinz and her husband, Jarod, live in Sioux Falls and have two children. Her personal interests include spending time outdoors with her family, going on walks with her dog and playing the piano.
Just about anything you need under one roof.
We know that managing insurance can seem confusing. That’s why our trusted dentist and the team take the stress off your shoulders by filing and tracking claims on your behalf. We proudly accept most major insurance plans, including Cigna and Delta Dental, to maximize your benefits at every visit. All we ask is that you bring your insurance card, and we will take care of the rest so you can focus on your smile, not the paperwork.