Main Dental Care
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Main Dental Care
Our office specializes in preventative and periodontic care as well as advanced cosmetic techniques to keep your smile bright and healthy. We make a special point to keep your care convenient and affordable with weekend and evening appointments and flexible financing. We always welcome new patients.

Please call our office today and make an appointment to see us! Main Dental Care believes that informed patients are better prepared to make decisions regarding their health and well being. That is why we've included an extensive section on this web site covering the full array of topics associated with dentistry, dental implants, dental diagnoses and treatments.
Services
The brief descriptions below are designed to familiarize you with our staff's training, professional credentials and work experience. Dr. Sina Eftekharzadeh has a background in Biological Sciences from the University of California Irvine before graduating from the UCLA School of Dentistry in 1994. He is a member of the American, California, and Orange County Dental Associations.
Regular dental visits are essential to make sure oral health problems - from tooth decay to oral cancer - are detected and treated in a timely manner. At our office, your oral health is our paramount concern. We want to make sure your teeth stay healthy, function well and look great! From regular cleanings and exams to advanced restorative treatments, all of your routine dental needs can be met right here.
Comfort and convenience are the hallmarks of Main Dental Care. To ensure your convenience, below is the information you need about our hours, location, appointment scheduling, insurance acceptance and billing. We also speak English, Spanish and Farsi at our office. We know you have many choices when choosing a Dentist in Orange, CA so we have made requesting an appointment a simple process via our Web site.
Your first visit to Main Dental Care establishes a vital foundation for our relationship with you. During the first visit, we make sure to obtain important background information, like your medical history, and give you time to get to know your doctor. You'll find all the practical information you need, such as a map and directions to our office, practice hours, payment policies and more.
At my first visit I was impressed with Dr. Sina's friendly staff and the cleanliness of the office. I was a little nervous having not been to the dentist in four years but Dr. Sina explained my treatment in a way I could understand. He gave me several options unlike previous dentists who were often hard to understand.
Reviews (19)
Rita Zamora
Rita Zamora
Dec 20, 2021
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I'm so glad I found a good dental office that I really like. Dr. Sina Eftekharzadeh is a professional and dedicated dentist, and the staff is friendly, caring and cheerful. I would recommend this office to anyone looking for a good dentist. Thank you Dr. Sina Eftekharzadeh and staff for the wonderful work you have done.
Hope T.
Hope T.
Jan 07, 2021
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The absolute best dentist and staff I have ever experienced. Dr. Sina is extremely gentle handed and experienced. He has been my dentist for years and I will never go anywhere else. Marcus is awesome too, incredibly friendly and highly efficient. Thank you so much Dr. Sina and the Main Dental team!
Ryan Probasco
Ryan Probasco
Jan 07, 2021
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This is a great place to have your dental work done! From the front desk to the dentist chair I had a good experience. I tend to be very nervous about dentists, but he made me feel comfortable. The results have been extremely good as well. Thanks for the great work!
Brittney B.
Brittney B.
Oct 19, 2020
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Dr. Sina, Marcus and the staff at Main Dental Care are incredible. My husband and I have needed a lot of dental work over the past couple of years and we have found Dr. Sina to be extremely knowledgeable and trustworthy.
Michelle Ortiz
Michelle Ortiz
Jul 15, 2020
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Ive been going to Dr. Sina my whole life and they never fail to do an amazing job!! The whole team is amazing and makes you feel safe and welcome, going to the dentist can scare some people but they are always so caring and gentle that you dont even realize you are at the dentist!! 25 years with them and I wouldn't even think of going somewhere else!!
David R.
David R.
Jan 28, 2020
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Came in and was kindly greeted by a male receptionist. Nice and clean facility with professional staff. Once the doctor went over the treatment I was receiving that day the receptionist came to my chair and handed me an invoice with the amount I would be paying after the treatment. I gladly signed and the dentist got to work. Once the dentist finished up I was directed to see the receptionist to pay my balance. This is where things became shady. Receptionist was claiming he put in the wrong insurance and that my balance was going to be an additional $200 bucks. I asked to see the original invoice
Connie Williams
Connie Williams
Sep 16, 2019
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We have been going to Main Dental with Dr. Sina for more than a decade. Dr. Sina is so good on what he does. Marcus is always on top of scheduling and follow ups.
Becky O.
Becky O.
Jun 20, 2019
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I had an amazing experience at Main Dental Care. I'm very pleased with my service and how gentle I was treated. I would definitely recommend Main Dental to anyone who is looking for a new dentist! Thank you again!
Rocio S.
Rocio S.
Jun 05, 2019
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I am very particular about my dentist due to my teeth history. I was referred to the office by Yazmin (one of the dental assistants) due to my dental insurance change. I am so glad I came to Dr. Sina. He is a great and the staff is also very nice, polite and caring. Thank you Main Dental Care!
Robert Lesh
Robert Lesh
May 30, 2019
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I am the caregiver of a man with a severe mental handicap. Finding medical and dental care with the required patience to respond to our particular needs has always been a challenge. It was sheer luck to have found Main Dental Care.
The entire staff has not only provided exceptional dental care, but have displayed incredible patience and compassion in dealing with this unique patient. Many thanks to everyone involved.
Farrukh C.
Farrukh C.
Mar 12, 2019
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The clinic staff is extremely nice and polite. Dr Sina is extremely professional and personable, took his time to explain everything in detail. Each time I was called right in and did not have to wait at all. Marcos did a great job accommodating my visits. Dr Sina and the assistant both did an exceptional job. Highly recommended!
Chelsea S.
Chelsea S.
Jan 06, 2018
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I don't have full-blown dental anxiety but I'm hardly a fan of going to the dentist. I had an amazing dentist in San Diego but decided I needed someone local, so I found Dr. Sina. What a great find! The office is fairly small but clean and nicely decorated. The gentleman at the front desk was friendly and helped me fill out all the new patient paperwork. Letty, the hygienist, is an absolute sweetheart! She made me feel so comfortable. And Dr. Sina was very thorough- they took full mouth X-rays and made sure any of my concerns were addressed, asking if I've had any discomfort, tooth
Natalie W.
Natalie W.
Oct 19, 2017
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Dr. Sina, Letty and Marcus are wonderful. Great individualized service, modern equipment, comfortable office and friendly staff. Highly, highly recommended.
Lee O.
Lee O.
Jul 13, 2017
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Dr Sina is great at what he does and it truly shows in every aspect of his profession. Very Caring and takes his time explaining things. Would definitely recommend.
Alex B.
Alex B.
Jul 23, 2016
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Great and honest dental care... Marcus is very friendly and helpful! Dr.Sina makes you very comfortable and cares if your in pain or not. 100% recommended !!!
Hamilton W.
Hamilton W.
Oct 07, 2015
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One of the best dentist offices I have been to. Dr. Sina and his staff are very honest and informative about all treatment options. They let me know when my insurance benefits are running out for the year to make sure I don't need to pay anything, pretty awesome. Whenever I have an emergency he makes time to see me ASAP.
Paulo Zucchi
Paulo Zucchi
Dec 24, 2014
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Doctor Sina was recommended by an office friend and I'm glad I went to see him. The staff is very professional and friendly. Took care of me from the first visit. Almost no waiting. I feel like all my needs were address and I’m actually looking forward my next visit.
Kevin M.
Kevin M.
May 17, 2013
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This is one of the best dentist offices I have been to in the last decade. The staff is incredibly friendly and do their absolute best to make you feel comfortable. Dr.Sina genuinely cares about your teeth and health and provided the MOST thorough dental exam I've ever been through - I found out that I had a root fracture that had gone unnoticed (no symptons) for 5 years!!! I highly recommend Dr.Sina to anyone who wants another level of dental care
Sheryl C.
Sheryl C.
Mar 18, 2013
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Dr. Sina, Letty and Marcas are amazing! They make a great team and always treat you like your family. Dr. Sina is gentle and makes sure you understand what is being worked on and Letty keeps you relaxed and is Dr. Sina's right hand. Marcas takes care of all your insurance questions and knows everything when it comes to billing and apts. They work with your schedule, open evenings and Saturdays. Couldnt ask for a better dentist! My kids love them :-)