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 through personalized, comprehensive dental care. We provide preventive, restorative, cosmetic, and advanced dental treatments for patients of all ages. Our goal is to preserve your natural teeth, improve your oral health, and provide comfortable, high-quality care using modern dental techniques and technology.












At Sigma Dental Clinic, our approach is entirely educational. During your visit, Dr. Sepi uses 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 160 reviews
Posted on Google![]()
Shannon Wall2026-08-26Trustindex verifies that the original source of the review is Google.
I had a wonderful experience at Sigma Dental Clinic. Having not seen a dentist for many (many) years, I was nervous going in but everyone at Sigma is so kind and put me at ease. I needed four small fillings due to gum recession. Dr. Dashti is gentle and explains what she is going to do before she does it, and there's a TV on the ceiling to entertain you while you're having your procedure! Tyrone is personable and efficient, and the kind gentleman at the front desk is awesome. He obtained a prior authorization from my insurance so I knew what my out of pocket would be beforehand and everything was ready to go when I got there. My teeth look great! Thanks Sigma team! See you in six months. 😁Posted on Google![]()
Valeriya Barybina2026-08-25Trustindex verifies that the original source of the review is Google.
My favorite dentist!Posted on Google![]()
kristina tendilla2026-08-21Trustindex verifies that the original source of the review is Google.
Had a good experience here with my dental care--welcoming/friendly staff and thorough dental work!Posted on Google![]()
Soroush Almassi2026-08-17Trustindex verifies that the original source of the review is Google.
Dr. Sepi Dashti provides an outstanding level of dental care. She is highly knowledgeable, professional, thorough, and attentive to her patients’ needs. She takes the time to explain each step of the treatment process clearly and ensures that patients feel comfortable and well informed throughout their visit. Her attention to detail, clinical expertise, and thoughtful approach to patient care are truly impressive. The entire office reflects the same high standard of professionalism and creates a welcoming and comfortable environment. I highly recommend Dr. Dashti to anyone seeking a skilled, trustworthy, and dedicated dentist who consistently provides excellent care.Posted on Google![]()
Lukas DBA2026-08-16Trustindex verifies that the original source of the review is Google.
The dentist is very gentle and nice and I have been recommending her around the area. The office manager on the other hand was yelling / arguing with me when I tried to make an appointment for a specific issue. He made us not want to return or recommend. I believe he had mistaken me for another patient and would not even try to understand his mistake when I tried to correct him. Having dental work is already stressful and when the office manager doesn't have clear communication and is using contradictory phrases it makes the experience so much worse and degrades trust.Posted on Google![]()
Fereshte2026-08-02Trustindex verifies that the original source of the review is Google.
I had a great experience at the clinic! The team is fantastic, and Dr. Sepi is incredibly gentle and took the time to explain everything to me—something I haven't encountered before. I highly recommend this place to anyone in search of a dentist!Posted on Google![]()
ghazal lotfi2026-08-02Trustindex verifies that the original source of the review is Google.
They provide great service and care!Posted on Google![]()
Anthony King2026-07-29Trustindex verifies that the original source of the review is Google.
I’ve been coming here for a while and have always had a great experience!Posted on Google![]()
Mahendri Ramesh2026-07-27Trustindex verifies that the original source of the review is Google.
I had my wisdom teeth removed at Sigma Dental recently, and the entire experience was far better than I expected given how nervous I was about the procedure. I was naturally a bit anxious heading in, but the team made me feel completely comfortable from start to finish. The dentist (Dr Septic Dashti) explained every step of the process beforehand, answered all my questions, and made sure I didn't feel a thing during the procedure. Post-op instructions were clear and easy to follow, making recovery smooth and manageable. Highly recommend Sigma Dental for anyone nervous about dental procedures!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!