I was seen by Dr. An and he was so friendly and very kind. As someone who is nervous to visit the dentist he definitely made it a pleasant experience! I would highly recommended this office to others. The staff are also friendly. read more

I had a complicated root canal done last year and Dr. Yang was incredible! She worked incredibly hard...2 appointments to save my tooth and she never gave up!! She personally called me at home after the first day to see how I was doing. Today was my one-year check...everything was great. she is very caring, professional and experienced. I would not hesitate to refer her to any of my family and friends. read more

This is a way overdue review of my very positive experience with Dr. Yang and her practice a few weeks ago. I was on the verge of either doing a major root canal or losing my molar teeth altogether due to years of severe grinding & bruxism. Because I had severe pain on my lower left molar, my periodontist, after examining me, told me that I needed a root canal for my bottom left molar. He initially referred me to another endodontics dentist in San Mateo to perform the root canal, but I did some additional research and found Dr. Yang (mainly looking at her high Yelp reviews). Because the pain is caused by severe bruxism, I felt that a root canal may not resolve the pain - because I would still grind my teeth after the root canal, so the procedure may be a waste for a teeth grinder like myself. Dr. Yang started out by taking an X-Ray of the painful molar. She then looked closely at the molar and X-Ray, then recommended me to take a 3D Image of the teeth, which I did (based on her recommendations). It turned out that I may not benefit from a root canal, because my problem is related more to a periodontal issue. Rather than recommending a major procedure like a root canal or an extraction with bone-grafting (which could have been more significant procedures that would generate more dollars), Dr. Yang told me she suspects it is more of a periodontal issue, but not root canal. So Dr. Yang referred me to Dr. Ronderos (another teeth-saving, excellent dentist), and she also recommended using softer toothbrush so my receding gum-lines wouldn't get worse. Dr. Yang clearly cares about her patient over just doing the next root canal procedure. Dr. Yang is an excellent example of how every dentist should be: honest, caring, methodical, and with high integrity. I went to see Dr Ronderos, and now, my left bottom molar no longer hurts, and I won't need a root canal and it looks like we can save that tooth. Without Dr. Yang's careful diagnosis and referral to Dr. Ronderos, I would have lost my teeth - either to a root canal or an extraction - neither of which are viable options vs. saving the teeth. If you read my review of Dr. Ronderos, you will see what Dr. R. did for my teeth and my bruxism. My teeth pain is now gone for a few weeks, and I no longer need to lose my natural teeth, thanks to Dr. Yang and Dr. Ronderos. I am eternally grateful for Dr. Yang, putting me on a path of saving my teeth and being an excellent dentist who cares about her patient. I would wholeheartedly trust Dr. Yang and Dr. Ronderos for their high integrity and recommendations. Go see them if you want the best for your teeth. read more

So you're researching endodontists. You might be in some manner of physical pain right now, and worried about experiencing more. For that, I'm so sorry, and I'll cut to the chase. My experience with Dr. Gregory An at Woodside Endodontics was thoroughly positive. Decades ago, I had root canal treatment (elsewhere) that over time developed an infection at the root tip. Dr. An determined that it was time to re-treat the tooth by doing another root canal. In my case, I wasn't in any pain, and I wanted it to stay that way. Dr. An reassured me that we wouldn't even have to remove the existing crown first, and I was sold because I know from experience that in and of itself this meant less discomfort for me. There's a small parking lot, and there are stairs and an elevator that go to their second floor office. The office is air conditioned and has a private bathroom. Everyone on staff is kind and the office atmosphere itself is very chill. The retired endodontist Dr. Gustafson took all of the beautiful and peaceful fine art nature photos on the walls, all of which support the office's framed mission statement (summary: give all patients a great, chill experience). The atmosphere makes a very big difference to me in medical settings, and this one does the trick. Assistant Ida is skilled and kind. Dr. An went through the numbing process with a light touch that I barely felt, even though I happened to need a particularly lengthy numbing process. He proceeded very gently through the entire retreatment, and I was very impressed with how slowly and gently he moved, yet how simultaneously quickly he finished the whole procedure. I was given a time estimate of two hours, and I was in and out of there in an hour and a half. I get that some of this is the luck of the draw - until you get inside there, it's hard to predict exactly how a tooth will behave - but I've got enough experience with this sort of thing to know that this was a thorough, yet well-paced procedure. The before and after xrays were like night and day. Before: messy. After: model-perfect. We went over the scans immediately afterward, and I left feeling confident in the aftercare process, as well as in my next steps. The office assistant gave me a care kit afterward, containing ibuprofen, bottled water, lip balm, a snack, and helpful instructions. I felt confident that my dental insurance claim for this procedure was handled very well, since the first claim for my previous intake appointment went through great. A little later in the evening, Dr. An called to check in with me to find out if the local anesthesia wore off (it had) and how I was doing (great, as if nothing had even happened). I'll do my aftercare, and return for a follow-up in a year. Teeth go wrong sometimes, and although I wish nobody ever needed to visit an endodontist, an endo I recommend is Dr. An, a lovely human being and a skilled endodontist. Feeling like I never even had a root canal is the best outcome of actually going through one (a second one on the same tooth)! May your own tooth travels be easy. read more

What a amazing and kind Doctor, Dr. Yang is. I had a horrible infection in my tooth and was in extreme pain. Her office got me in immediately and got straight to work. After the initial visit, Dr. Yang called me later in the evening to check on me and my pain. I felt very cared for and knew I was in great hands, I ended up having to have a root canal and went back for my second visit. I can't say enough about the entire staff, from front desk to assistants. Thank you Dr. Yang for making me feel well taken care of during such a stressful and painful time. You are kind and an ultimate professional. read more

Dr. Yang took such great care of me when I went in for a root canal a few weeks ago. She talked me through the entire process and kept checking to make sure I was doing fine through out the process. Dr. Yang made sure I was comfortable during my root canal procedure. She even checked in on me the following day after hours which made me feel like she truly cared. The front desk people were also so kind and Sam was able to get me in the next day. I truly had an amazing experience and would recommend to a friend in need of endodontic care. read more

Dr. Yang is incredible! My dad had such an amazing experience with her. He has extreme dental anxiety and Dr. Yang made sure he was comfortable throughout the entire experience. My dad and I couldn't thank her enough for taking excellent care of him. The staff is just as nice and attentive! read more

Dr. An, his assistant April and the receptionist get *****! My root canal was painless and performed as if I were in a surgery center. Latest equipment used, Dr. An advises in advance what he is doing, asks how you are feeling and his voice is so smooth. The manner in which he spoke with his assistant April was professional and kind. The office is clean modern and spacious. I can't believe I am writing a YELP about a dentist, but when you are WOWED, you need to tell all. read more

Excellent customer service from intake to follow up. Dr, Yang is the best at patient care and treatment. I had been previously traumatized by a not so great experience and she made me feel comfortable and supported. read more

This is my second procedure done by the professional team at Woodside Endodontics. Dr. An performed the first root canal and Dr. Yang my most recent. I was VERY impressed with the professional, friendly care I received. Dr. Yang did a great job and the only discomfort, if that, was keeping my mouth open so long............but, my wife tells me it is always open. This is a great team! Try it, you will like it! Thank you. read more

Root canal is not my idea of a fun day, but given that constraint my time spent with Dr. An was time well spent. I went in with a painful condition, Dr. An performed an evaluation and recommended a root canal, as expected. The procedure started immediately, and the discomfort was minimal - I spent most of that 40 minutes reminding myself I wasn't in pain, and the sooner it's over the sooner I will be better, I should relax. It took several hours for the anesthetic to wear off, but that was not replaced by pain. I took an advil before bed just in case (I didn't want to wake up in pain to take a pill) but that wouldn't have been necessary. I'm on day 2 now, exactly as Dr. An predicted - the tooth is a bit sensitive to pressure, and I'll be chewing on the other side for a couple days probably, but the constant ache of my tooth and jaw is gone, my headache is over. My wife stole the KitKat from my care package, and that's the worst part of my root canal. I would have expected worse, but Dr. An didn't give me enough time to worry about it. No pics, I'm sure it looked a lot worse than it felt. Thank you, Dr. An. read more

I went to Dr. Yang with a Bone infection and she discussed with me my options to clean out the infection and re-do my root canal (she didn't do the first one, it was over 10 years ago) or get my tooth pulled and eventually get an implant. Dr. Yang really wanted to try and save my tooth with the root canal and I agreed. She was absolutely amazing, kind and gentle. Going to the dentist is very hard for me and I have a lot of anxiety when going. She made sure I was comfortable and that I did not feel any pain. I went back for a check up 6 months later to see if my bone was healing and it was!!! She celebrated with me and was just as happy as I was that my tooth would be okay. I am so thankful that I was referred to Dr. Yang and that she saved my tooth. I would not go anywhere else for a root canal. read more

Dr. An is wonderful! He took care of me for an emergency root canal. He was very communicative, kind, thorough, and skilled. He explained everything in a way that made sense to me and made sure I was comfortable. I so appreciated his follow up call too. His staff is also very knowledgeable and sweet!! read more

This was an AMAZING experience!! Dr. An and his staff gave me exceptional care and a lovely Care Package to take home. He called at 8:30 that night to see how I was doing. Absolutely AMAZING! read more

Woodside Endodontics - Inside the Care Package!! - Endodontists Near Me - Redwood City, California

See all

Dr. An performed two root canals for me recently. He is exceptional. Highly skilled as well as kind and patient. I am a nervous patient and Dr. An took great care to make me feel comfortable and at ease with the procedures. He personally followed up after both root canals to ensure I was ok. His office is well run and extremely professional. His front office staff, Kelsey is pleasant and efficient. I feel incredibly grateful that I was referred to Dr. An. He is a dental treasure! read more

Great doctor - skilled, kind, patient, and almost painless - I was in excruciating pain and came to Dr. An by referral. I had previously done root canal with other doctor that was not too pleasant so I was anxious and nervous. Dr An took great care in all the steps, explaining and helping me understand the procedure. It was extremely smooth and I am nearly painless less than 24 hour later! Thank you Dr An! read more

I just had a root canal done, and the entire experience was fantastic, from scheduling to Ida, his assistant, Dr. An and the office are fantastic. I was educated on the condition of my tooth and was taken care of fully. Highly recommend. read more

In my 27 years of living, I have never enjoyed going to the dentist. Never! NOT UNTIL TODAY. I had a root canal done with Dr. Gregory An and wow, wow, wow. If I could have another root canal...I would because THE EXPERIENCE WAS SO ENJOYABLE. They had soft pillows, the chair was super comfortable you could fall asleep in it, Dr. An takes you through every single part of the process, they give you ibuprofen after your visit is done (knowing that you might experience some pain), and just every part of this experience was so well thought-out. They are the MASTERS at making the root canal experience as enjoyable as possible. I wish all dentists were up to this standard...then maybe people wouldn't dread going to the dentist. Thank you Dr. An and staff for such a great experience (with the all-fearing root canal). You guys have a repeated life customer now (but let's really pray I don't get anymore root canals). read more

Dr. An performed 2 root canals on me. I found him to be very professional, friendly, knowledgeable, caring, and skilled. My results were excellent and I am very grateful as I had been in tremendous pain for some time before the procedures, which then resolved immediately after. I was referred to him by my excellent dentist who told me the qualities I listed are why she sent me. I would not hesitate to have him operate on my family and friends if needed. read more

10/10 would recommend! They scheduled me right away. They have very helpful and professional staff. Dr An is extremely good at explaining all the details of whats going on. Im very satisfied with his work; safe to say this was the most professional dental experience i have had ever. The goodie bag and follow up phone call are both very nice as well read more

Can't believe I'm writing a 5 star rating on a root canal, but it has to be done. I've hardly had any dental work done and am generally terrified of going to the dentist, so when I was informed I needed a root canal due to a cracked molar, I was filled with abject horror. I called another office first, but they were booked way out and pretty rude on the phone. Enter Woodside Endodontics. I spoke with Sam in the phone who was incredibly kind and helpful. He knew I was in pain and got me in as soon as possible for a consultation and the work at the same appointment. I was checked in the following morning professionally and quickly, sat down in the chair, then the heavens parted and in walked Dr. An with his smooth, professional demeanor and incredibly calming voice. He was examined me, took x rays, numbed me up, and we were on our way. The procedure took 30-40 minutes tops. His assistant is top notch, together, they make a finely tuned machine. I felt no pain, and felt fine afterwards. I am grateful for he and his team for making this a painless introduction to root canal's! Thank you. read more

I was bummed to learn that I needed a root canal. My dentist highly recommended Dr. Gustafson as the best and said that it'd be painless and take about an hour. I had my root canal this morning and it didn't hurt. I'm glad to have found a skilled and super nice endodontist. There was a memory foam cover on the dental chair to make it extra comfy and they put dark glasses on me to protect my eyes. As I left, I got a little gift bag with follow-up instructions and a few goodies. I hope I don't need additional root canals, but if I do, I'll definitely return to Dr. Gustafson. read more

See all

I rarely write reviews unless someone is truly exceptional, that was the case when Dr Yang did a root canal on me. Normally a root canal is something you wouldn't describe as painless. But I can honestly say it was painless. Dr Yang's total concern for the patient's pain tolerance is what makes her the only dentist I will go to if I need a root canal. She makes sure nearly every minute that the patient is feeling no pain and if there is any she stop and add more novacaine or discuss options to eliminate any discomfort. She also explains everything to the patient both before the procedure, during the procedure, and after she is finished. The staff, especially the dental assistants are professional and friendly. This whole experience today would not have gone as smoothly as it did without the work of the entire staff and doctors at Woodside Endodontics and the care level they provide throughout my visit today and in the past Thank you Dr Yang and staff. read more

Nobody looks forward to a root canal right? Well, with Dr An & his staff, the process was as painless and comfortable as a root canal can possibly be. He was very thoughtful, answered all my questions and communicated to me through the whole procedure. Thank you read more

I have had two root canals performed by Dr. An. He is a kind and gentle man, but above all a very competent and thorough Endodontist. I have never experienced any pain during or after any visits. He gently explains everything that he is doing, and I feel the prices are fair. He was right on time with a big smile... I don't think you're going to find a better Endodontist anywhere! A+ plus read more

I had 3 root canals done by Dr. Ahn, two new ones and a redo of one that had an issue. I can honestly say that I felt hardly any pain at all during the entire 3 hours spread over two appointments. He is super careful about causing any distress and will tell you beforehand when you might feel a prick or some pressure or some vibration. Moreover he called to check on me in the evening. By then, I was completely fine and did not have to make use of any pain medication at all. For a pain-free root canal, or as nearly totally pain-free as it is possible to get, I would highly recommend Dr. Ahn and his staff. read more

Just visit Dr an's office he did a great job to do a root canal. I am not easy to get numb but he did a great job and everything went smoothly Would definitely recommend him to other people read more

Dr. An and his staff are fantastic! I had to have a few root canal's done and I couldn't be happier with the result. I would highly recommend him. read more

Dr Ahn and his staff are amazing. They took such good care of me when I cracked a tooth and needed a root canal during the shelter place during Covid. They explained everything to me and answered any questions I had. I highly recommend read more

I had my root canal with Gregory An over two years ago but found this draft lying around. The experience was very good and currently, my root canal'ed tooth is in tip top shape! I appreciated the attention to detail and care shown throughout my visit. The quality of care was noticeably higher than my previous experiences; I've had 2 root canals, one with a dentist, and the other with another endodontist. He was very clear and communicative, walking me through the procedure both before and after. The actual procedure was completely painless with no complications, unlike a previous time, when a drill bit got permanently stuck in a canal. Very pleased with the quality of care! read more

No pain thank god! Minus one star because the front desk girls had bad attitudes. But dentist was nice and did a good job. I also wasn't told about them charging me a consultation fee.... Which threw me off when I paid after. read more

After a few days of excruciating pain, my dentist was able to get me in to see Dr. An for a root canal yesterday. The office staff was super courteous and welcoming. Dr. An was awesome in explaining all before the root canal while keeping me informed throughout the procedure -- I was so relaxed, I literally fell asleep. Dr. An gave me a call a number of hours afterwards to check-in on me. He struck me as a true professional who I will definitely seek out if need be in the future. read more

I was SO NOT excited to be here. After being in excruciating pain for three days from needing my very first root canal I was in no mood for more pain. My anxiety was off the charts to say the least. However, I was referred by Dr. Terry Codington of Aloha Dental and I trust him and his office so off I went. Upon arriving, the staff was meeting near reception - they all turned to me with a smile and said "we've all been waiting for you". It was so funny and started my visit off with a bit of laughter. I instantly relaxed a bit. From reception to Dr. An, the experience was amazing. Everyone is so kind, helpful, at ease and soothing. There was no stress. I was informed of everything which took away some of my worries. And when I met Dr. An, can I just say WOW. He has THE most amazing voice and bedside manner. It was almost hypnotic. I instantly felt at ease with him and his dental assistant. Not only was he very gentle, he is also very confident in his work. I honestly cannot say enough great things about him. My experience could have gone very differently and I will always be grateful for his patience and kindness. The only pain I felt was the initial numbing with the needle. Aside from that he made a not so fun situation as pleasant as possible. To top it off I rec'd a phone call from Dr. An at 8pm to make sure I was doing ok. My appt. was at 9:45am earlier that day. I'm incredibly impressed by the experience I had with Dr. Gregory An DDS, MPH and his staff. I recommend Dr. An hands down for root canals / Endodontics. read more

This review is WAY OVERDUE! After leaving from having my Root canal done and all numb I can truly say that I have had a great experience. If I can give then 10 stars I would! Like really! Office area is small but very welcoming when you walk in! Everything is so clean and tidy! I came here last year May 2014 as my past dentist sent me here for a root canal. I was surprised to see how quick I was able to get an appointment in. I spoke to the Office Assistant Mary Lou, who by the way, is always SO pleasant to speak to over the phone. Even with my busy schedule she was able to fit me in for an appointment. She scheduled me for an appointment with Dr. Gregory An and as I was extremely nerves he made sure to make me feel very comfortable. Let me just admit that the chairs are SO comfortable and I felt well relaxed. I have to admit I was almost falling asleep! 6 months later I was back in Dr. An's chair getting the root canal re-treated. I was nerves once again and didn't know if the experience was going to be as the first one or painful. But little did I know it was a piece of cake. What really meant a lot to me is that they still were able to accommodate me even after being 40 minutes late for my appointment this morning. Okay..so I am not ALWAYS early to my appointments but as traffic was insane and I couldn't do anything about it I still was able to get my root canal done today. Usually, many places would say, "sorry, but as we have appointments all day, we would have to reschedule yours." Nope! I didn't hear that from Mary Lou at all! :) How amazing is that!!! That really meant a lot to me! Big thank you to Aida the assistant for Dr. An, for supporting me the whole time I was in the chair and making me feel comfortable. The reminder of me doing a great job was big to me! Shout out to the Insurance Specialist- Maria! Her smile is always so charming! :) So as you may know now, this is surely the place to come if you are in need of a root canal! They do amazing work and you would NOT be disappointed! Thank you Dr. An!!!! read more

My mom was referred to Dr. Gregory K. An for discomfort teeth, his staffing made me and my mom very comfortable, and amazing services, that feels like we've been there before, Dr An was very nice, knowledgeable explaining situation to my mom who is 81 years old, has very little English my mom and I thank Dr An and his staffs for amazing experiences!!!! read more

Great experience in getting a root canal done. I was referred to Dr Gregory K An for a root canal and have nothing but good things to say about him and his staff. They took care of my tooth, followed up with phone calls to make sure I was doing well and scheduled a follow up apt to be curtain everything was done right. The procedure took 1 hour and was painless. Dr An was very gentle and explained everything very clearly. To say a root canal was a pleasurable experience must indicate he is the doc to go see if you need one done. Thank you Dr An. read more

It is odd to write a raving review about a root canal. But Dr. Gus and his office are fantastic. I had to get a root canal yesterday morning and I was surprised that it only took 1.5 hours and also that I had no pain during the procedure. Dr. Gus has a very good understanding of where nerve endings like to hide and covered all the endings I had so well, I had zero discomfort. I was very glad for the goodie bag the office gave me as I was leaving and the instructions were very clear. I also really appreciated the follow up call to see how I was doing later in the day. I hope I do not have to have another root canal but if I do I know where I am going to go for it. read more

Tuesday hits and so does a shooting pain in my mouth on a tooth that recently had a crown put on but had not had a root canal prior. The pain and mental agony of dental problems should never be underestimated. Thankfully I have been loyally going to Dr Gustafson for years and he always comes to my rescue. Tuesday morning I called on an emergency basis and was literally able to get in for an emergency root canal with Dr. An within 2 hours! This is very uncommon with dental offices so it was a true blessing to be fit in on short notice. I had never worked with Dr. An before but now I understand why he's Dr. Gustafson's partner! Dr. An is so zen, best way to put it. He has a calming aura to him and a soothing tranquil voice that puts your nerves to rest. He was so kind throughout the entire root canal (this was my 13th root canal but he still explained everything so lovingly) and helped talk my fears away. I tend to get paranoid thinking my teeth will fall out after my history massive dental problems and trauma from loosing 10 other teeth 3 years ago. He handled my anxiety so gently! Dr. An is the bomb! And I'm still a huge fan of their super soft memory foam chairs that you can literally sleep in! Both Dr. Gustafson & Dr. An + the entire office crew have my loyal respect. As extreme as this sounds, I would rather wait in oral pain to see either of these two fabulous dentists before scooping to a lower level to see some random dentist if neither of these two were unavailable when I am in need of their help. This is how much I trust and adore them! Bottom line, Dr. Gustafson and Dr. An are where it's at folks! Go get your grill fixed with their royal expertise! You'll get an ooh-la-la goodie bag on the way out and a call later that night personally from the Dr. who worked on you just to make sure your okay and answer any questions. Go King or Queen with your awesome self and give them your business. Your mouth deserves it :) read more

Very comfortable experience. From the memory foam on the dental chair to the light touches throughout the procedure, Dr.An was very gentle. He took his time with the aneastegia so I felt minimal pain. One of the better experiences I had for a root canal. read more

Best Dental Experience Ever! Dr. Gustafson and everyone in his office are very friendly and professional. I was so sure that this was going to hurt but I got through the entire root canal with no pain. No pain! He kindly explained what he was doing through the whole procedure. Everything went smooth and I was out of there in no time. I went back to work directly after and haven't felt any pain since. That was easier than an annual cleaning! I couldn't be more satisfied. I highly recommend Dr. Gustafson for root canals. read more