Keith Komatsu Dentistry
Keith Komatsu, DDS:
Practice Profile Page


Keith Komatsu Dentistry
Keith T. Komatsu, DDS (Endodontist)
Redondo Beach, CA













A list of major dental treatments which I offer my patients:

Root canal therapy

Root canal retreatment



Offers Even28 at-home™? No

Offers Even28 at-dentist™? No

Offers Invisalign®? No


Monday: 8:00 am to 5:00 pm

Tuesday: 8:00 am to 5:00 pm

Wednesday: 8:00 am to 5:00 pm

Thursday: 8:00 am to 5:00 pm

Friday: 9:00 am to 5:00 pm

Saturday: Closed

Sunday: Closed





Check out what some of our happy patients are saying about us:

Wanda L. from Marina del Rey, CA (Source: Yelp)


Before my root canal I was extremely nervous, Dr. Komatsu explained very clearly what my condition was, his care and professionalism put me at ease, he was very gentle in administering the needle and the procedure itself was painless, and afterward I had no pain at all. The doctor was also very considerate in following up that evening to make sure I was OK and didn’t have any pain or questions. The office staff is excellent and efficient, I highly recommend Dr. Komatsu.

Brian Miura (Source: Google)


Dr. Komatsu saw me on an emergency basis as my endodontist office was closed. He and his wonderful assistant performed a painless and superb root canal procedure. I am very pleased with their professionalism and clinical skills. Highly recommended!

Justice G. from Redondo Beach, CA (Source: Yelp)


I was referred to Dr. Komatsu by another dentist who claimed that Dr. Komatsu was one of the best in his field. I honestly thought that was a very strong statement but after my visit and treatment I agree 100 percent. I was in extreme pain for days. I thought I was going to lose a tooth but Dr. Komatsu got me in his busy schedule quickly and performed a root canal while saving my crown on top of that tooth. He was awesome, informative, and caring. Staff was warm and welcoming before I even stepped in the door. I highly and easily recommend one of the best……Dr. Komatsu.

Azalea M. from Redondo Beach, CA (Source: Yelp)


In October of last year (2015) I had the unfortunate experience of having excruciating tooth pain over a weekend. I was fortunate enough to find Dr. Komatsu and called his emergency number. Dr. Komatsu personally called me after I left a message on the office voicemail. After describing my symptoms, Dr. Komastu saw me early Monday morning, where I proceeded to have an emergency root canal, and later having to have my entire tooth extracted. The entire process of getting a new tooth takes quite a while, and about a month ago I am the proud owner of a new porcelain tooth! I can not express my gratitude and sincere appreciation for the care of Dr. Komatsu and his staff. They actually personally check on you after treatments and genuinely care about their patients. I was literally blown away by the service received from everyone. Dr. Komatsu is thorough, detailed and makes sure you have a good understanding of every procedure he is doing, before he does it. To find something positive out of a ‘not so great’ situation is really amazing and fortunate. Dr. Komatsu is well regarded in the community, and I have personally praised him to many locals in the area. Having root canals and teeth pulled is scary and nerve racking business; but because of Dr. Komatsu’s skill and care, I am happy to say that I am a very happy customer and HIGHLY recommend him to anyone.

Christine Kim (Source: Google)


This was the best root canal experience ever. Granted, my previous dentist is in her 70s and operates like she’s in the 70’s, but Dr. Komatsu and his team did an excellent job using modern technology. I nearly fell asleep in the chair during the procedure! Hopefully I won’t need another root canal but if I do, I know who I’m going to call. Thank you Dr. Komatsu and team!

Kay G. from Hawthorne, CA (Source: Yelp)


Unfortunately during this trying time of the COVID-19 virus and all of the business and work shutting down, i needed to have a root canal done :(. Lucky for me Dr. Komatsu was able to get me in , same day, and have treatment done as well.  I work as a dental hygienist and know my way around this business.  Dr. Komatsu and staff were all very friendly, professional, and empathetic!!  Even though I know exactly what entails this procedure it still is not a fun thing to have done, But i was completely comfortable and Dr Komatsu made sure I was doing ok. I would highly recommend my family, friends and patients to this office if a root canal or even consult was needed!!!  Thank you Dr and staff for being able to fit me and take good care of me!!

Richard J. from Brooklyn, NY (Source: Yelp)


Wonderful doctor (Keith Komatsu). Very clean, very modern facility. Medical staff are very friendly. Doctor takes time to answer patient questions and follows up with patient after treatment. Doctor explained treatment plan well and executed the procedure even better. Trust the doctor completely. Highly recommend if in need of endodontic services.

Grace Long (Source: Google)


Dr. Komatsu is a very skilled and experienced specialist. I was so nervous about needing a root canal, but he and the office staff were very calm and reassuring. Walked me through the whole process and addressed my concerns. The best part- no pain during the procedure.

Stephanie Kaats (Source: Google)


Thank you for being so fantastic! You are a master of your trade!! I dozed during my root canal. Had no pain the nite of – nor the next day – it is just perfect. No pain whatsoever. I so so appreciate your call to check in on me. I will forever highly recommend you to anyone who needs a root canal or any endodontist services.

Kenway H. from Los Angeles, CA (Source: Yelp)


I have been seeing Dr. Komatsu for years now, he has done phenomenal work in my mouth with minimal discomfort. Just had a quick 10 minute check-up this morning. He is ever so professional with a great bedside manner and clearly explains what needs to be done and his recommendations. Just last year my dentist referred me to him since I had a root of a tooth decay and I was told I would likely require a root canal, possible implant/porcelain tooth. Dr. Komatsu was able to do the root canal, place a post and save the good parts of the tooth in 2 visits.  His staff is amazing, on the ball with what needs to be done, efficient and quick to get you room’d on time, start with ordered x-rays/other immediately after your arrival. Ex. This morning I arrived to my 8AM appointment at 7:59AM, in the chair at 8, repaired tooth/gum x-ray’s by 8:03, saw Dr. Komatsu for assessment and then teaching and out by 8:11 with my 6 month appointment follow-up appointment in my hand!  Forever thankful to them. Never mind driving the nearly 39 miles/75 minutes in the morning to get to his office, ’cause I know I am in good hands 🙂

Jessica V. from San Pedro, CA (Source: Yelp)


The services at Dr. Komatsu’s office are absolutely the best! I would give him 10 stars if that was an option. He is compassionate, always reachable, and trustworthy. He always makes sure I understand the treatment plan and that I am comfortable afterwards. I just had my 11th and 12th root canals. I waited, in pain, for an extra week (he was on vacation) so I could see him. I didn’t want to see anybody else because I don’t trust anybody as much as I trust him. I have had emergency situations and he hasn’t hesitated to come in after hours to treat me. His office staff is polite and accommodating. I recommend him often and wouldn’t trust my root canals to anybody but him.

Anonymous (Source: Google)


It is obvious that Dr. Komatsu is passionate about what he does. He spends time to understand my concerns. I have been having teeth problems including pain for a couple years now and he is very patient in helping me resolve my problem. I’ve had two root canals by Dr. Komatsu and fell asleep both times! Painless root canal sounds like an oxymoron but not when Dr. Komatsu is doing the root canal. I have recommended Dr. Komatsu to numerous people for both root canal and implant placement and all of them had the same great feedback!

Alex S. from Redondo Beach, CA (Source: Yelp)


Not that anyone really wants a root canal, but if you have to, you hope to be with Dr. Komatsu.  He is professional, kind, gentle, and soft spoken.  He is thorough with his explanations and wants to make sure their is no pain or hidden surprises.  He even follows through with a phone call the next day.   I would definitely recommend him and his friendly, caring office staff.

Anonymous from Torrance, CA (Source: Yelp)


The office is outstanding services. Doctor Komatsu had done 3 root canals for me so far and I’m scheduling another one coming. He has such a great hand where my roots were a typical Asian kind which took much more time then normal procedures but he made it so comfortable to the point where I was half falling asleep . He is full of experiences. If you’re a worry, chicken type of people like me…you can choose his services and trust me, you will love it…I’m a worry free now when it come to root- canals

Suzy C. from Torrance, CA (Source: Yelp)


Dr. Komatsu and his team are consummate professionals who make every visit to his office low stress and essentially free of discomfort. I have needed quite a bit of endotontic work, including an extraction and implant, saving a front tooth (!) and more. I can say I was lucky, but I believe it is Dr.Komatsu’s skill and care that made each treatment successful!

Crystal S. from Laconia, NH (Source: Yelp)


I chose Dr. Komatsu becasue he specializes in the gentle wave root canal process. Dr. Komatsu is an absolute professional on every level.He communicates extremely well and takes an abundance of time to answer all your questions. At no point did I feel rushed. The procedure itself was about an hour but it was painless from beginning to end. Literally there was ZERO discomfort. I left feeling extremely well cared for by Dr. Komatsu and his staff. Later that evening (9pm) I was shocked to receive a personal follow up call from Dr. Komatsu. No only was this practice skilled they were personable and caring. I would absolutely recommend Dr. Komatsu.

Joe C. from Torrance, CA (Source: Yelp)


All of the staff, nurses, and Dr. Komatsu are very friendly and knowledgeable. They immediately made me feel comfortable and confident that I will be well taken care of. This is my first root canal so I didn’t know what to expect and I asked a lot of questions. Dr. Komatsu was nice to answer my questions and graphically explained what the treatment does on the X-ray. They use state of the art technology so X-ray is super clear and digital. By the way, their check in system is all completely online so you know you walked into a modern dental clinic. The staff advised me to increase dental coverage since it’s near the end of the year already and I will have to do crown on the same tooth any way. This alone will save me a bunch of money. Overall, I really appreciate their help. I didn’t feel much pain at the procedure and I didn’t really feel that much pain after either, despite taking less pain killer dosage than recommended. Dr. Komatsu was super nice that he called on the night of my first procedure to see how I was doing. Definitely highly recommended!

Emily P. from San Pedro, San Pedro, CA (Source: Yelp)


It is obvious that Dr. Komatsu is passionate about what he does. He spends time to understand my concerns. I have been having teeth problems including pain for a couple years now and he is very patient in helping me resolve my problem. Dr. Komatsu did 2 root canals on me and I fell asleep during both treatments! Painless root canal sounds like an oxymoron but not when Dr. Komatsu is doing the root canal. I have recommended Dr. Komatsu to numerous people for both root canal treatment and implant placement and all of them had the same great feedback!

Jackie Flaherty (Source: Google)


I was greeted by a pleasant receptionist. The office staff including dental assistants were friendly and professional. There is a reason Dr Komatsu came so highly recommended. He is extremely skilled and so proficient that I had no pain during or after my root canal. I have had 4 root canals by other endodontists and have never had a better experience. Thank you to the entire office staff.

Sara R. from Los Angeles, CA (Source: Yelp)


I was referred to Dr. Komatsu for a fractured tooth. I was really worried because this was the first time I had ever had any kind of work done on my teeth. Dr. Komatsu made me feel completely at ease and answered all my questions first before he began my root canal. Dr. Komatsu was completely patient and was very comforting as I was terrified. After speaking with him I completely trusted him. After the procedure, he and his staff further addressed my concerns and his staff was very patient and kind as well. I was given clear follow-up instructions so I knew exactly what I could do or couldn’t do. That evening Dr. Komatsu called me to see how I was doing. I felt like he really cared how I was doing and/or if I was in pain. I really appreciated the follow-up phone call.

Carlos R. from San Francisco, CA (Source: Yelp)


Recently I had to have a root canal done and called Dr Komatsu’s office and they were able to see my later that day. He and his staff took great care of me and explained in detail the entire procedure. They made sure I was comfortable and did a tremendous job the entire procedure. Able to to leave that afternoon with very little pain and fell much better than expected. They followed up with a text later the night to check up on me which was greatly appreciated. My follow up 2 weeks later went smoothly as well and I would recommend Dr. Komatsu and his entire staff to anyone that is looking for a truly professional and highly skilled Endodontist. Thanks Dr. Komatsu for you great professionalism.

Kristie L. from Redondo Beach, CA (Source: Yelp)


If you have the misfortune of having to deal with a root canal, or extraction, this is the place you want to be!  Dr. Komatsu is gentle, and a perfectionist.  I’ve had three procedures done, and all without pain.  Seriously.  No pain.  I’ve had an extraction and implant done on the same day, and it looks beautiful- no one would ever guess it’s not the original tooth.  The staff is the perfect mix of upbeat and friendly, while remaining professional.  The office is calm and welcoming- the music is good, and there are a ton of magazines to distract you while you’re getting numb.   And the office is beyond clean- it’s pristine!  If you’re looking for an expert, and want to get the best possible results, Dr. Komatsu is without a doubt the answer.  I would never go to anyone else!

Chris Lubba (Source: Google)


Dr. Komatsu is amazing and caring. He actually did my root canal years ago and it is still good. It was not an easy root canal and it too over two visits to complete. I was out of pocket for costs and what the price he stated upfront was the price in the end as well, even though it took him longer than planned and another visit. No more pain and the procedure was painless as well. Hope I’ll never need another root canal but, if I do, I know where I am going as fast as possible. Don’t hesitate, call him!

Stephen L. from Manhattan Beach, CA (Source: Yelp)


I was experiencing a tooth ache after I had a new crown put on at another dentist.  When the pain worsened and the tooth became more inflamed, they recommended I go see Dr. Komatsu who’s office was just around the corner.  His office fit me in that same afternoon for a root canal, which was great since I was going on vacation the next day.  Dr. Komatsu explained the situation very well and was extremely thorough.  I guess one of the roots on my tooth was curved so it was especially difficult to work with and took quite a bit of time to complete.  The entire process was pain free!  I would highly recommend Dr. Komatsu if  you’re in need of an endodontist.

John G. from Redondo Beach, CA (Source: Yelp)


I have been to Dr. Komatsu on two occasions for root canal work. The process was seamless from the initial call to the end of the procedure. There was absolutely no pain or discomfort during the procedure even the numbing injection…could not even feel it. His staff is professional and caring. All COVID protocols were in place and I felt safe. I highly recommend him as a dentist. He surfs as well…that is a bonus star.

Diane D. from New York, NY (Source: Yelp)


I do not enjoy getting root canals especially after a previous dentist did not numb me sufficiently during a root canal procedure and I felt like an ice pick was rammed into my head. It got to the point where I needed a valium before a procedure (I have had 4). Then I was referred to Dr. Komatsu. Dr. Komatsu has a great demeanor and is an excellent endodontist. I felt no pain and the procedure was flawless. He also has state of the art equipment. His staff is-friendly and knowledgeable about the insurance processes. I returned for a follow up visit and he reviewed the x-rays with me and answered all of my questions. I highly recommend!

Pablo A. from Lynwood, CA (Source: Yelp)


Dr. Komatsu and his staff are great. I was referred here and they were all awesome(yes, I called going to the dentist awesome). I had a root canal done with almost no discomfort. The staff answered any questions I had. Also at the front desk Jocelyn was extremely helpful and even offered to help me with any other questions I had about insurance!

Rachael G. from Manhattan Beach, CA (Source: Yelp)


He’s amazing, gentle, professional, friendly and pain-free. I was also struck by how accommodating he was. I was told by my oral surgeon that I needed a root canal; he recommended Dr. Komatsu. I called that day and saw him at 4:00 p.m and got a root can at 4:30. He followed up with me later that evening to see how I was doing. When I needed some follow up care he saw me on a Sunday, which was above and beyond the call of duty. And even when I couldn’t make a morning appointment that I made, his wonderful staff found a spot for me later in the afternoon. I was so impressed with Dr. Komatsu and his staff that I will recommend him to anyone who needs an Endodontis. Thank you, thank you, thank you, Dr. Komatsu. I am so grateful to the care and consideration you showed me. You are an amazing professional and a phenomenal healer.

Suzy Lo Cicero (Source: Google)


Dr. Komatsu and his team are consummate professionals who make every visit to his office low stress and essentially free of discomfort. I have needed quite a bit of endotontic work, including an extraction and implant, saving a front tooth (!) and more. I can say I was lucky, but I believe it is Dr.Komatsu’s skill and care that made each treatment successful!

Jamie Jasper (Source: Google)


I have had three root canals with Dr. Komatsu (including one emergency one) and Dr. Kamatsu has be amazing through all of them! I am currently going through the process of having an implant and he has put me at ease through the whole process. He is gentle and considerate (he is very sensitive to the fact that this is a big procedure and can be scary for some). He even calls you the night after your procedure to make sure you are doing well and not in pain! I can’t recommend Dr. Komatsu enough, and his assistants and girls at the front are a pleasure to deal with. They are always very welcoming and help you feel calm the second you walk in the door. The only downside to Dr. Kamatsu is he is a specialty dentist and can’t be my regular dentist for everything!

Weini H. from Torrance, CA (Source: Yelp)


When you first meet Dr Komatsu he might come across as a man with a serious demeanor. But once he starts working on you you quickly realize that he’s very gentle, caring, thorough and skilled at what he does. At the beginning of the appointment he patiently answered all my questions and made me feel at ease. During the procedure I was so comfortable that I almost fell asleep! (I had a 7:30am appt) His office has state of the art equipment and his staff are friendly, organized, and efficient. I was very impressed with how the appt went from start to end and I would definitely refer friends and family to him!

Diane O. from Redondo Beach, CA (Source: Yelp)


I have been to several endodontists in my life, but Dr. Komatsu has exceeded all of my expectations. He is calm and caring. He was very concerned with my comfort. I had ZERO pain or discomfort during my root canal. He took the time to explain everything. In addition, the office staff was so kind and friendly. I felt I had been going there for years! I cannot give Dr. Komatsu and his staff enough praise. Thank you!!!

Alecks R. from Torrance, CA (Source: Yelp)


When I was 12 years old, I broke my jaw playing basketball. To no surprise, I’ve been in and out of a dental chair my entire life. Surgeries, root canals, bleaching, braces, fillings, etc. I’ve done it all. Yes, I still have my real teeth. But it wasn’t without the knowledge, care, and expertise of a handful of specialists. One of them was Dr. Keith Komatsu. Keith has worked on my teeth a number of times throughout the years. It’s difficult to describe my procedures mainly due to the fact I don’t want to sound ignorant however, Keith saved my teeth. Not to mention, cosmetically they look fantastic. I’d be remised if I didn’t give credit to Dr. Ellen Hayashi as well. She keeps my gums healthy and teeth looking so good. Yes, I will be sticking with Keith and Ellen for a long time. I’ve been around the block once or twice and I appreciate dentistry I cant count on. Not to mention the staff and location make each visit something to look forward to!

Jesse B. from Hermosa Beach, CA (Source: Yelp)


Ive seen a handful of dentists over the last year, and no other dentist has made me feel as comfortable as Dr. Komatsu. He explained things in more detail than anyone, he was more accommodating and gentle than anyone, his staff is helpful and friendly, the price was below what I expected, and he even followed up with me later in the night to make sure I was comfortable after treatment. Other dentists should take note. This is how it’s done!

Diana R. from Long Beach, CA (Source: Yelp)


I was sent to Dr. Komatsu after being up all night with a swollen pain and the worst pain. Going into the office his staff was very warm and welcoming and I didn’t wait long at all! I met Dr. Komatsu he was very nice I was shaking because I had heard from friends that it would be hard to numb me since I was swollen. Dr Komatsu was amazing very gentle. I went back two weeks later again he was very gentle. I am completely happy with his work and his staff. Definitely the place to go!


Thank you for your interest in our practice. We look forward to meeting you and providing you with the highest standard of care in a stress free environment. Our "make no compromises" philosophy places our practice in the top tier of endodontic practices. Our "quality first" emphasis ensures that your care is our top priority. Dr. Komatsu received his dental degree from the University of the Pacific in 1992 followed by a one year general practice residency at the Veterans Adminstration Medical Center, Loma Linda, California. Dr. Komatsu practiced general dentistry for five years before receiving advanced training in Endodontics from Loma Linda University. In 2010, Dr. Komatsu returned to Loma Linda University to complete a fellowship in dental implant treatment. He is a Board Certified Diplomate of the American Board of Endodontics. Dr. Komatsu began this Redondo Beach dental specialty office in 2000.