Who We Are
Sigma Dental Clinic is a place where healthy, confident smiles come first. Under the leadership of Dr. Sepi Dashti, our dedicated team is committed to providing compassionate, high-quality dental care for patients of all ages. From preventive care to advanced restorative solutions and dental implants, we combine expertise with a gentle approach so every patient feels cared for and valued.
Your neighborhood general dentist in Chicago, providing care for the whole family.
From preventive cleanings to cosmetic treatments, we go beyond the basics to keep your smile bright.
Our restorative dentistry services bring back function, health, and beauty to damaged smiles.
Expertly placed dental implants give you a permanent, natural-looking solution to missing teeth.
Convenient appointments, flexible options, and an affordable dentist who puts patients first.
At Sigma Dental Clinic, we don’t just treat teeth; we care for people, building long-lasting relationships built on trust.
We are committed to providing exceptional dental care tailored to your needs at Sigma Dental Clinic. We believe every patient deserves outstanding treatment in a friendly and welcoming environment. Our dedicated team works hard to ensure that your experience with us exceeds expectations whenever you visit. We accept new patients and make sure the best care in every visit.
Your trusted solution for healthy smiles at every age.
Convenient location, Flexible hours, Simple booking process, Encourages regular visits, Reduces anxiety
We are committed to ensuring your satisfaction by delivering high-quality care and ensuring you always leave feeling happy.
Enjoy a comprehensive range of services, from general dental care to cosmetic treatments, all in one convenient location.
We understand that every patient is unique, which is why we take the time to create a personalized dental care plan tailored to your individual needs.
We are committed to delivering the highest quality care by utilizing cutting-edge technology in our practice. This investment allows us to offer more accurate diagnoses.
At Sigma Dental Clinic in Chicago, Dr. Sepi is more than just a dentist; she’s a trusted partner in your journey to a healthier, brighter smile.

Years of skill in general and cosmetic dentistry with proven results.

Results that protect your health and give you a reason to smile.

Clear communication, no surprises, and care that fits your budget.

A gentle touch and compassionate approach that eases dental anxiety.

Custom treatment plans designed for your unique needs and goals.

Advanced technology for safe, precise, and comfortable treatments.
Dr. Sepi Dashti is a distinguished Chicago dentist, recognized for her expertise in General and Cosmetic Dentistry. In short, she is the heart of Sigma Dental Clinic, proudly serving the communities in Chicago, IL.
Dr. Dashti’s dental journey began early. First, she graduated from a prestigious dentistry program in 2008. Subsequently, she spent over a decade running a thriving private practice abroad. However, her commitment to dental excellence brought her home to Chicago, where she expanded her skills at the University of Illinois at Chicago, College of Dentistry.
As a result, Dr. Dashti is now known as one of Chicago’s top dentists. Furthermore, she is celebrated for her meticulous approach and dedication to exceptional patient care.
Dr. Dashti’s professional philosophy centers on compassionate, patient-centered care and continuous learning. Specifically, she strongly emphasizes preventive dental practices and promotes oral health awareness throughout the Chicago area.
Ultimately, her mission is clear: to make high-quality, accessible dental care a reality for everyone.
On a personal note, Dr. Dashti enjoys spending time with her loved ones, cooking, and exploring the outdoors.
You Can Count on Reliable and Professional Dental Care
At Sigma Dental Clinic, we are dedicated to helping you achieve a healthy, lasting smile with our advanced dental care. We provide comprehensive services for patients of all ages and offer specialized treatments beyond general dentistry. We aim to preserve your natural teeth and protect your mouth health forever. Every procedure is 100% guaranteed safe and secure.












At Sigma Dental Clinic, our approach is entirely educational. During your visit, Dr. Sepi utilizes high-definition intraoral cameras and ultra-low radiation digital X-rays to project crystal-clear images of your teeth live onto our treatment room television screens. She walks you through your dental health step by step, showing you exactly what she sees. You will never have to guess about your treatment—giving you complete clarity, comfort, and control over your smile journey.
EXCELLENT Based on 142 reviews Posted on pegah ghofrani esfahani2026-05-26Trustindex verifies that the original source of the review is Google. Dr. Sepi Dashti is amazing! I usually feel nervous about going to the dentist, but she made the whole experience comfortable and stress-free. She is very kind, patient, and truly an expert at what she does. She explains every step clearly and with so much patience, which made me feel very comfortable. The quality of hygiene and care at the clinic is outstanding. The clinic is very clean and modern, and the staff are welcoming and supportive. Even though it’s a bit far for me, it’s absolutely worth the drive. I’m so happy I found Dr. Dashti ,highly recommend!Posted on Mihai Gorii2026-05-21Trustindex verifies that the original source of the review is Google. Nice place , nice people 👍🏻Posted on Victoria Duran2026-05-14Trustindex verifies that the original source of the review is Google. De Dashti is Very Professional. Highly recommended!Posted on Kendra Toomey2026-05-13Trustindex verifies that the original source of the review is Google. I had such a great experience at my dentist’s office this week. I went in on Monday for a cleaning and came back today to have three cavities filled. The entire experience was smooth, comfortable, and professional from start to finish. What really stood out to me was the level of care and attention to detail. She even corrected an issue from previous dental work that another dentist hadn’t done properly, and I could immediately tell the difference. I truly felt listened to and taken care of. Everyone in the office was kind, welcoming, and made me feel at ease. I’m really grateful to have found a dentist I can trust and would absolutely recommend them to anyone looking for quality dental care.Posted on Andy Barr2026-05-12Trustindex verifies that the original source of the review is Google. My experiences at the dentist have always been "fine" at best, but Sigma changed that. Dr. Dashti took her time and explained everything in detail (even showing me via the overhead monitor where fillings were needed). The hygienist and the person who checked me in (whose names I forgot, I'm sorry!) made me feel comfortable from the moment I walked in. I got to choose a show on Netflix and zone out while I had work done. Each of them seem like genuinely sweet people, and treat you like family. I can't believe I'm saying this, but I actually look forward to going back 😆. Thank you all for everything!!!Posted on Fareaba, Reba Moradi2026-05-01Trustindex verifies that the original source of the review is Google. I love this place!! I’d never get excited for the dentist and now I do! Sepideh provides a warm welcoming atmosphere and walks you through everything she does so all the jitters go away and we can just enjoy getting a clean smile! I also appreciated the dental assistants help and information- seems like I always walk out of here learning something new!Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
We make paying for your dental care easy!
At Sigma Dental Clinic in Chicago, your smile and peace of mind come first. We know navigating dental insurance can feel overwhelming, which is why our experienced team is here to make it simple. We proudly accept a wide range of insurance plans and will help you maximize your benefits so you can focus on your oral health, not paperwork.
Book Your Appointment Today and Discover Why Chicago Patients Call Us the top-rated dentist near me
Yes, we accept Medicaid and welcome patients from across Chicago. Our team is happy to help you understand your coverage and get the care you need.
Medicaid may cover services like exams, cleanings, fillings, and other essential treatments. Coverage can vary, so we recommend contacting our office to verify your specific benefits.
Absolutely. You can call our office to book an appointment at a time that works for you. We also offer flexible scheduling options based on availability.
Finding the best dentist in Chicago shouldn’t mean traveling far. At Sigma Dental Clinic, we’re proud to be easily accessible for patients across the city. Whether you’re coming from work, school, or home, our central location makes quality dental care simple and stress-free. We are well known in your community and neighbourhoods because we never compromise on hygiene.
Use the map below to find us quickly and plan your visit. Your healthy smile is just around the corner!