I was sent to them from my dentist and was getting it to have surgery on my shoulder. I had just had more test done before going there. My PCP doctor called, as I just got seated in the chair, to give me results. The dentist just came in at the same time I answered my phone. The dentist was threaten to not see me, if I didn't hang up right then. I took the very important call, but hurried off. He was so rude. I had only a root canal, not a cap , just the root canal. it was almost 2,000. I was floored. I will never go back again. Front desk was very nice but the Dentist needs better bedside manners. read more

Very shady business practices that borderline fraud. Was referred to them by my general dentists. Called and asked if they were in network and waited a day for them to confirm and call me back. Called me back and confirmed that they were in network but "couldn't" give me an estimate in the procedure, just the X-rays.. Arrived and went through X-rays and CT Scan and then was presented with a cost estimate about 3x what my insurance said this should cost. I declined to sign the agreement and pressed on why it was so expensive and was informed that they're "not actually in network with my plan". I mean wth ?!?? Deceptive, bait and switch approach. I left. Wasted a. Day off from work and they billed my insurance 345.00 the scans. I will be seeking oversight review. read more

Bad experience here at this dental office. I don't recommend to anyone in the area. Doctor seems to be very impatient and quite rough

Upset that my elderly mother who is on a fixed income paid nearly $600 for a consultation, only to get told she could not keep her scheduled treatment for a root canal. My mother had to wait for her cardiologist visit to clear pausing her heart medication for one week in order to continue the treatment for the root canal. The front office scheduled this visit but were ill prepared and communicated badly. read more

just had a root canal done by Dr Lu. It was virtually painless. This wasn't my first but definitely one of the most pleasant. The entire office staff was very personable and professional. read more

Great experience. Friendly staff. Even got a large refund after insurance paid more than expected.

They were thorough in explaining the plan, costs and procedure for the dental work they provided. Very personable staff.

let me just start by saying how amazing the staff is at this office, truly angels. So helpful and respectful. Dr. Kim did two root canals for me (one was a retreat) and after a year when my dentist took some X-rays she said he did a wonderful job. Dr. Saadat is amazing at explaining everything, very thorough and kind. Also I had to have bone graft surgery and he made the experience the best dental experience I've ever had. This is an honest office and they will take good care of you. read more

WARNING!! DO NOT GO TO THIS OFFICE!!! Edited to add: I was even more LIVID after the appt when they took me back to see my daughter and she told me that she asked for me but they didn't bring me back. I had a long and firm conversation with the dentist about changes that need to happen in their office. They took my 12 year old daughter to the back and started treating her without letting me know they would be starting treatment. This was her 2nd appt there and the first appt she was terrified and crying and had to have her hand held the whole time. On the way driving to the 2nd appt (today) I asked my daughter if she was okay to have her 2nd treatment by herself. My daughter said she wanted me there with her because she was scared. The dental assistant came and took my daughter in the back, told me to wait outside and said "We'll see" (I don't know what that even means). After some 20 minutes or so, I found out they were working on my daughter already. I do not have a problem waiting in the wait room if I know my daughter is doing okay. The problem is they should have let me know that my daughter was doing okay and it would be best for me wait in the wait room. I was worried!! The dentist proceeded to tell me that patients do better when parents are not in the room (which I do understand) but that is not her decision to make. That is a decision for the parent to make. I spoke to the front office person since apparently there is no office manager. She was extremely defensive and snippy. NEVER AGAIN!!! There are lots of other competent dentists/endodontists that value the parent/child relationship. read more

I have had a couple of dental procedures done at Sigma. Dr. Nick performed my most recent root canal. He was very attentive to ensuring I was comfortable throughout the procedure. Afterwards he provided clear post-op instructions. What to expect, post-op treatment plan and follow up timeline. He was very thorough. The staff at Sigma is professional, courteous and focused on making your visit as comfortable as possible. They are also transparent regarding the costs associated with your treatment plan. I was kept abreast of everything throughout the treatment. I highly recommend Sigma Dental Specialists. Dr. Paul J. read more

I highly recommend this place. The people over here are very professional and and very helpful. I was in severe pain and the doctor here was very very nice very helpful..dr jalali knows what he is doing . read more

Sigma Dental Specialists - Endodontists Near Me - Prosper, Texas

See all

I went to the location on 121. I had an emergency root canal and a very busy travel schedule. These guys were great not only did the accommodate my schedule the procedure was great. I would suggest them any time. read more

Most professional and THE BEST Endodontist in town by far!! Honest, meticulous and state of the art. Dr Daghighi understands the problem and is an expert in diagnosis and relief of that horrible tooth pain. He is very kind and professional too. I highly recommend him to my friends and family. read more

Awesome ! Dr Nick performed my root canal and I had no pain.... the staff was friendly and caring. Dr. Nicks assistant was the Best Shodi was so informative n caring. Overall I would tell everyone I know to go to this practice for a root canal Thank you Regina Harris read more

Dr Daghighi is the best at what he does. His office is tranquil and up to date. everyone is so nice an professional. If you are in need of a root canal don't go elsewhere, these guys are top notch! I followed Dr Daghighi's instructions after I was in severe pain and it solved my problem immediately. read more

I've been to the Frisco, TX location before, and this location is just as great! Yesterday, I had an emergency where I needed to get a root canal, and they were able to get me in within an hour and a half of me calling. Everyone was very helpful and so professional. Dr. Holmes is great, and so is Sheyda (I can't remember her last name). Big thanks to everyone at Sigma Dental Specialists for their professional and quick care! read more

I just had an appointment with Dr. Sunga. She was amazing!!! So kind and sweet!! Explained everything very well! Answered all of my questions. Very knowledgeable, gave me lots of information to make a good decision about my tooth. Emily and Emma were also very kind and helpful!! Loved the Murphy location! Highly recommend!! read more

I wish I could rate the dentists separately. The services received were great. The easiest root canal I've ever had and they were very kind and knowledgeable. Fast forward 3 years and I receive a bill for about $100 stating they estimated the insurance payment wrong and I had a remaining balance. I called and asked why I was receiving a bill for services performed 3 years ago. The lady that answered explained that their book keeping person wasn't doing her job and their books were all inaccurate. How is this my fault? Thank goodness I saved my EOB's because I was able to audit their itemized statement and noticed my ins sent a check to them that they didn't have listed. I called them back and they said they didn't have any record of that and needed to see my EOB. I also noticed that they charged me about $50 more than my insurance said I was responsible for. I emailed them all my EOB's and they were suppose to call me back. It's been a couple months and no call back. So not only did they over charge me, they didn't apply a payment my ins sent, and then billed me THREE YEARS LATER. I have referred many people to this office but won't be able to anymore. Had I not kept my EOB's (we have a different ins. now) I would have assumed I did owe it. Also, after consulting with others, turns out they have 11 months from from the date of service to bill you. After that time period, they have no case and cannot collect. So although the dental work was great, the office experience is not worth going back. Disappointing. read more

Although I didn't actually proceed with the treatment Dr. Daghighi would have performed (after a second opinion, I chose to extract the tooth rather than proceed with the apicoectomy he recommended), I found him to have a very professional and pleasant manner. He thoroughly explained the procedure he recommended, and I would have had no concern with his having performed it, had that been my ultimate decision. read more

I feel I had a leg up on most people - my dad referred me to Dr. Khalilkhani. SO grateful for taking his advice because Dr. K was exceptional. This was my first time having a root canal, and had been avoiding it for a year out of fear. Trembling in the dentist chair, him and his staff quickly put me at ease within minutes. Greeted with a blanket and ear buds to kick back and watch Netflix on the ceiling TV. The entire procedure was such a breeze. I went to the Murphy location. (note: I commuted all the way from downtown Dallas to his Murphy office, due to his great reputation). I hope I never have to get another root canal done, but if so, I'd 100% go to Dr. Khalikhani again! read more

My sister is terrified of any procedure so the talk of a root canal terrified her . This establishment treated her with the most care and respect of any facility. She left with a new outlook on dentistry and the staff went above and beyond to ensure she was comfortable i really appreciate this place and their caring staff. read more

These people are awesome. Quality of service is above and beyond. I had a tooth ache and i needed a root canal (i'm a dentist myself). Dr. Nick and Dr. Kian are real professionals. I was able to watch my favorite movie while i was getting a root canal done on my teeth by Dr. Nick. No pain at all and the root canal performed was impeccable and flawless. It can't get any better. I strongly recommend them. read more

Sigma Dental Specialist are awesome. When I have a issue with a tooth they are there to help. Katy is awesome. Dr. Kian is awesome.

I had to have an emergency root canal. Dr nick and his assistant,Carolyn were great. They made sure I was comfortable and I was able to watch a show on Netflix during my procedure. I would definitely recommend anyone that needs a root canal to Dr Nick. read more

I was referred to Dr. Daghighi for an evaluation of a tooth that was bothering me, even though it already had a root canal done by another dentist. I was very pleased on how my appointment went. He explained to me why it was still hurting(it wasn't done correctly ). So he did a re-treatment and now I feel much better! He's so professional and you can just tell he loves what he does! I would highly recommend him!!! read more

I've had 2 root canals this year, both, done by Dr. Daghighi. Both were done extremely well with no pain. I am a very difficult patient and he handled me perfectly from the beginning to the end which is why when I was told I needed another one I went directly to Dr. Daghighi for my second one. He did such a great job that my dentist asked me to have him send over his business cards so he can refer his patients to Dr. Daghighi. Thanks for your great work! You make a 'not so great' situation into a very pleasant one with excellent results. :) read more

I rarely write reviews, but I must express how overwhelmingly positive my experience was at Sigma Dental Specialists. I had a severe infection causing tremendous pain. Dr. Kian (Dr. Daghigi) was thorough and clear in explaining my condition, and the steps by which he would resolve it. Moreover, Dr. Kian went the extra-mile in helping me above and beyond I expected, showing his concern for my specific situation. Additionally, Shelby and Shideh were always gracious, friendly, attentive, and demonstrated the utmost professionalism at every visit. This combination of technical expertise, professionalism, and most of all a genuine care for patients, is what makes Sigma Dental Specialists a very special practice. read more

Dr. Daghighi is one of the best Endodontists I ever had. I was in excruciating pain and had massive swelling due to a root canal that went bad. Dr. Daghighi's office was able to get me in right away and he performed an APICO that went perfectly. In addition to that, during his review of my X-ray he noticed a mysterious mass that I did not know existed. He made sure to refer me to a specialist and called me to ensure that I followed up on the mass. What I enjoyed most was Dr. Daghighi's professionalism and the follow up which you do not find too much in NYC. He was also very reachable for any follow up questions after the procedure. read more

Dr. Kamura and his staff were amazing with my 9 year old son when he needed a partial root canal. They were very attentive and kind and took the time to ensure his comfort. I highly recommend this office. Thanks you! read more

I hate going to the dentist let alone having to get a root canal fixed last minute. Dr. Kian was fast, gentle and very patient. I was in and out with little to no pain. I highly recommend him to anyone who hates getting any dental work done and those who dont mind it. The staff was also friendly and made the visit pleasant! read more

Great office, doctors, and employees!! My daughter needed and endo consultation and they were able to get us in on the same day my dentist saw us. They were even willing to do any procedure that needed to be done on this visit so we didn't have to keep returning and missing work and school. The front office staff was very welcoming and friendly. The office was pristine. Our dental assistant was superb! Very friendly! The doctor we saw was kind, explained everything very thoroughly, and didn't push work that didn't necessarily need to be done. We had a great visit and really recommend this office!! read more

Very friendly office staff, very important when going through something like a root canal! Really liked Dr. Kian. He even gave me his cell # if I had a problem after hours. I would definitely recommend Sigma Dental Specialty! read more