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Mahsa Astani

Mahsa Astani

O'Fallon, MO and St. Peters, MO

Dr. Astani is a native Texan through and through. She completed her undergraduate and professional dental education in her hometown of Dallas, Texas, where she graduated from Texas A&M college of dentistry. So, what brings her to the Midwest? Dr. Astani and her husband, Sama, had been long distance for their entire relationship of nearly 8 years while completing their training at their respective programs in Texas and Oklahoma. Life brought them Midwest to live together for the first time as he further specializes in his field at Barnes Jewish hospital, and she has loved being here ever since!

When she isn’t doing dentistry, she enjoys traveling, cooking, gardening, weightlifting, trying all the best restaurants in town, and cuddling with her Dog, Cyrus. Something most people don’t know about Dr. Astani is that she speaks four languages. She has a genuine love for learning about different cultures and their customs and integrating that into how she cares for her patients.

If you ask Dr. Astani what her personal motto is, she’ll share this quote with you: “I cannot do all the good the world needs. But the world needs all the good I can do.” She strives to apply this to her personal and professional life daily in hopes that she can create a lasting, positive impact on the lives of her patients and the people around her.


We love hearing feedback from our patients so that we can improve the overall experience at Confident Smiles and Implants. Here are a few testimonials from some of our satisfied patients!

Eric R. St. Peters, MO

I always have a good experience here. The staff is great and the cleanings and work are done right (and pain-free). Great place to get your dental work done!

Amy G. Cottleville, MO

I was very pleased with my experience! From start to finish, I knew exactly what was going on and was treated with respect the entire time. I ask a lot of questions and each were answered in a positive way. I never felt uncertain about…

Robert C. St. Charles, MO

Great team! Professional, courteous and knowledgeable. Staff makes you feel comfortable and scheduling has always been a breeze. Highly recommend

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