Dr. Kim’s Smiles Dentistry
Byoung Kim, DDS:
Practice Profile Page


Kim’s Smiles Dentistry
Byoung J. Kim, DDS
Fulleton, CA













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

Dental cleaning

White fillings


Inlays & onlays


Clear aligners

Porcelain veneers

Teeth whitening

Dentures & partials

Root canal treatment

Tooth extraction


Offers Even28 at-home™? No

Offers Even28 at-dentist™? No

Offers Invisalign®? Yes


Monday: 9:00 am to 6:00 pm

Tuesday: 9:00 am to 6:00 pm

Wednesday: Closed

Thursday: 9:00 am to 6:00 pm

Friday: 9:00 am to 6:00 pm

Saturday: 9:00 am to 4:00 pm (by appointment only)

Sunday: Closed





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

Miss K. from Fullerton, CA (Source: Yelp)


By far the BEST DENTIST! I’m very nervous about visiting a dentist not because I’m scared of a dentist.   I’ve had too many experiences of a bad doctor charging my insurance company for the treatment that I did not get. Dr. Kim is honest and gentle! I’ve been going to Dr. Kim for about 7 years and I’ve introduced him to many of my friends.  They are all very happy with Dr. Kim! One friend had her teeth all messed up by another dentist and she got it fixed by Dr. Kim.

Jessica V. from Huntington Beach, CA (Source: Yelp)


Dr. Kim is the best! Always remembers small nuances I have with my teeth and has helped my brother and mom with their teeth as well. Definitely recommend.

Janice C. from Chino Hills, CA (Source: Yelp)


It’s been a very long time since I’ve gone to the Dentist and to be honest, I was pretty nervous going into my appointment. But everyone was very sweet and walked me through everything that was going to happen. They made the process super simple and easy. I could tell they also did a really thorough job when they were cleaning my teeth, checking up to see if everything was okay, etc. Plus, I got free floss & a toothbrush at the end ^_^ I was able to set up my next appointment for 6 months later! Thank you for making the process super easy and not stressful at all! Now I have clean teeth!

Tony T. from Long Beach, CA (Source: Yelp)


Just found Dr. Kim. I found him from all of his positive reviews on yelp. Extremely honest, upfront, efficient and most importantly no “up selling ” for services that are we’re not necessary for my oral health. Loved their high tech x ray machine. No need to bite onto multiple plastic guides!

Soo K. from Irvine, CA (Source: Yelp)


Clean. Kind. Comfortable. Dr. Kim is a great doctor. I can tell he’s doing his job with his real heart and fantastic result! I don’t feel like over charged like the one i went to before. I can surely recommend this place to my friends.

Warner G. from La Mirada, CA (Source: Yelp)


Dr Kim has been my primary Dentist for two years. He is one of the most skilled dentist’s that I have gone to.  He takes his time with you and does a superior job in all of his dental work. I might also add that the office staff is helpful and easy to work with. I personally would not go anywhere else.  Warner G.

Stephanie K. from Buena Park, CA (Source: Yelp)


THIS IS THE BEST DENTIST EVER. enough said! Ive been to many dentistry but this one is the best one i ever been too! Dr. Kim succeeds all your need he’s very skilled and a talented Dr! This dentistry is also very high tech and so clean i love love absolutely love it here!! If i could give this dentistry 10 stars i would!!! 11/10 recommend this dentistry!!!

Danny T. from Thousand Oaks, CA (Source: Yelp)


Love love love this dental group. Attention all yelpers……Honest dentist alert!!!! Does amazing work and extremely fair cash patient prices. He does not try to over sell, or over diagnosis. I take my whole family here and refer everyone I know who is in search of a good and honest a dentist (which is impossible to find nowadays). Dr Kim is also extremely gentle which was very important to me because I hate going. He makes it easy I now go each quarter for my cleanings. My girlfriend needed extractions so I sent her, she also loved them. Go here You will not regret going.

Jennifer L. from Monterey Park, CA (Source: Yelp)


My mom introduced me to this place and I’m very happy with all of my experiences here so far. Dr Kim is very friendly and professional and the office is clean and modern. I would highly recommend this dentist to everyone!

Scotty G. from Tool, TX (Source: Yelp)


Great dentist and staff. They go the extra mile to take care of their patients even on short notice. I had a root canal and three crowns done in a total of two and a half hours. They worked me into their schedule as I had to leave town that afternoon. Thanks guys.

Emily L. from Palo Alto, CA (Source: Yelp)


Dr. Kim is so kind and you can tell he knows what he’s doing. Even though it’s a decent ways from LA (where I go to school), it’s always worth the drive. Fillings are super fast and he will take the time to polish down and add as needed so that you feel as comfortable as possible. My mom has dental problems and has been several times for root canals (making the trip down from the SF Bay Area to LA just for this). Dr. Kim is also trilingual- he speaks Korean, Spanish and English (did his DDS in Argentina), so you can speak whichever you feel most comfortable with.

K. T. from Brea, CA (Source: Yelp)


Dr. Byoung J. Daniel Kim gave me a huge smile! He replaced three of my old silver fillings with one-hour-ready pure ceramic CEREC crowns and the entire process, including the (no insurance but I did have savings) price was painless! How can I say THAT? I received value for the dollar in so many ways, and it’s not often one can say that living in Southern California. For example, getting to my needy teeth was tricky for both of us: All were in the back and one was a molar. Dr. Kim inserted anesthesia right near each tooth with a small jack-hammer-like device that delivered fast and numbed quickly–no more long needle jammed painfully into the back of your mouth to numb your face for a half day. He also placed a clear protective plastic/cotton mask over my eyes and nose–dental smells be gone! After old-filling-extraction and tooth prep, he photographed the tooth with a tiny elongated camera. And on the computer screen in front of me, up popped an image of the area to be filled. I watched the full process as the computer went to work analyzing at all angles in 3-D for a precise match, using a single block of ceramic. This onsite milling saved me the extra steps, time and costs of dealing with an offsite manufacturing laboratory, temporary crown and return visits. Prior dental estimates for the same 3 teeth#s and conditions, but with inlays and one lab manufactured noble-metal fused crown, ranged from $1,450 to nearly $8,000.   I found Dr. Kim through his display ad in our local Pennysaver. He accepts CareCredit, which is a non-credit-card monthly payment plan, sometimes without interest if you qualify. I also researched non-employer, individual dental plans, but the combined annual monthly premiums and specific discounted treatment price for my specific teeth #s were higher than direct-dental-pay–and did not cover the CEREC technology. I never thought I’d be “singing the praises” of a dentist, but Dr. Kim is really exceptional and I recommend him to everyone who complains about their teeth needing work. So here you have it. Now give it to Dr. Kim! Including in English, Korean and Spanish. Heck, try sign language, too! He and his staff are prepared! He’ll give you your best smile.

Marie K. from Orange, CA (Source: Yelp)


Dr.Kim is a great dentist, nice, friendly, gives me the most painless root canals ever. Vanessa and Lucia are awesome too! I look forward to going for my routine check up and cleaning. Most dentists will recommend procedures you may not need just to make a quick buck but this place is not like that I’d highly recommend this place to anybody with teeth. Best dentist in Orange County!!!!

Olimpia B. from Cerritos, CA (Source: Yelp)


My entire family goes to Dr Kim for dental care. He’s not only a very nice person but his fees are very reasonable His staff is also outstanding. I highly recommend them.

Adam O. from Fullerton, CA (Source: Yelp)


Absolutely the best dentist I’ve ever been to. I don’t give out 5 stars easily. I had a root canal procedure done with Dr. Kim and the procedure went incredibly smooth, and without pain. Dr. Kim has an extremely steady hand! I have been recommending all my family and friends to go to Dr. Kim. He is a very honest dentist and will not push procedures on you just to make a buck. He is Korean and his English is excellent. There are no communication barriers whatsoever. He wants to keep you happy and will take time to explain things. His dental assistants/hygenist are on point and flow perfectly with Dr. Kim’s procedures. His staff is amazing and they do a great job of handling the scheduling and transactional side if things.

Elsa M. from La Mirada, CA (Source: Yelp)


I don’t normally give reviews but I had to share my experience with this dentist. I went in for a root canal 4 days ago and like most people I was dreading the procedure because of past bad experiences with root canals. Dr Kim was amazing. The whole thing was super smooth with zero pain and the best part is that I have had no pain and haven’t had to take pain medication. Both the dr and his staff are very nice and polite

Caitlyn K. from Tustin, CA (Source: Yelp)


I went to another dentist to do fillings but due to the fact that my school is starting soon, I came here to do my fillings. Absolutely no pain whatsoever. I came here to do three fillings in my bottom left section and I knew that I had pretty bad cavities. I expected sensitivity near the nerve as that is how it always goes. However, to my surprise, there was absolutely no pain and I only needed one shot of anesthetic. Dr. Kim finished all three fillings in under an hour which was great and highly efficient. The assistants knew what they were doing as well which made me feel at ease, and he would check in to make sure there was absolutely no pain as well. I will be coming back here for more treatments. But I couldn’t give a better review for a dentistry.

AC. R. from Santa Ana, CA (Source: Yelp)


My best friend recommended Dr. Kim to me when I mentioned that I possibly needed dental work. I went in for a cleaning and X-rays.  It turned out I needed a root canal.  I’ve never had a root canal and was fiercely dreading it, but the procedure was a lot shorter than I expected, there was zero pain and minimal discomfort. Dr. Kim and his staff are all very kind, assuring, and very attentive. I wish I had started going to him many years ago.

James C. from Fullerton, CA (Source: Yelp)


I was referred by my aunts who were having problems with other dentists’ previous works.  My wife had to do some major work on dental surgery, and we are very happy that we met Dr. Kim.  He is someone we can definitely trust with the highest skill as accomplished dentist, and would recommend to all people that we know and care.  He is not the cheapest, but well worth it.  We only have one set of teeth so why take chance.  All my aunts and her friends are very happy with the work Dr. Kim have done for them.  And we give him two thumbs up!

Kwang L. from Fullerton, CA (Source: Yelp)


The dentist is highly skilled and staffs are friendly. It’s one of the main reasons why my wife and myself go there. But there are other reasons too. Never over booking like some airlines do. We always enjoy somewhat relaxed air because Dr. Kim gives patients enough time for them to feel like at home. He practiced many years in a South American country and started practice here in California years’ ago. He not only speaks English but also Spanish and Korean as fluently as English. I would never hesitate to recommend ths smiling Dr. Kim to any one.

Jeannie C. from Irvine, CA (Source: Yelp)


A few months ago my prior dentist had botched my crown and I ended up needing an emergency root canal. My friends referred me to Dr. Kim which I called and was able to see him that day.  He was able to do a root canal right away and I was able to get immediate relief from the pain.  He was really gentle and I didn’t even feel the needle at all.  The root canal procedure was not scary or painful and I was out the door in an hour.  Dr. Kim is very professional, kind and gentle with your teeth.  I live in Irvine and drive up to Fullerton to see him now.  I just had my first cleaning and it was the gentlest cleaning I had ever experience.  He was super thorough too! Highly recommend!! Thank you Dr. Kim and staff!!

Marty S. from San Gabriel, CA (Source: Yelp)


The staff is friendly and Dr. Kim is very professional, personable and compassionate. Skilled staff and state-of-the-art equipment in a stylish office. He is very knowledgeable and very efficient, and good with senior citizens I highly recommend him.

David V. from Brea, CA (Source: Yelp)


I love Dr.Kim!!! Everyone here is so nice and kind! They’ve helped me so much in my life with my teeth! Developed a real relationship with me I love it here. I could never go anywhere else I had some serious problems going on and they fixed all of them for me!  10/10 would recommend !!!

Kathleen A. from La Habra, CA (Source: Yelp)


My husband saw Dr. Kim this week and we are both so impressed.  Enamel was wearing away on his two front teeth (bottom of teeth and back).  Dr. gave my husband back his beautiful smile in about 35 minutes.  I couldn’t believe it.  At a cost that was more than fair.  We are devoted patients at this point…..  Vanessa at front desk so professional….  very important……  No waiting…..  took him right in…..  I brought my book expecting to read and read……  didn’t happen……..  Thank you Dr. Kim!!!!!!!

Brian L. from Yorba Linda, CA (Source: Yelp)


They have an awesome x-ray machine.  Dr Kim is super gentle … the check-up and cleaning went very smooth.  I have two areas that are somewhat sensitive and it was always painful with my previous dentists.  With Dr Kim, I didn’t feel a thing.  The best is that he is as honest as it gets.  You can trust that he won’t do any unnecessary work.  I asked if I should get a crown to cover my sensitive molar and he said that there is a high chance the pain could still be there even with a crown, so he suggested to wait in case the sensitiveness subsides.

Lisa E. from Whittier, CA (Source: Yelp)


We have been Dr. Kim patients since  he started his practice I strongly recommend him because of his honesty and state of the art equipment. He is very knowledgeable and compassionate. The staff are very friendly and make you feel comfortable he will continue to be our dentist for a long time to come .


Dr Kim & his team are dedicated to providing quality dental care in a humble comfortable environment. We treat each and every patient with the respect they deserve. Dr. Kim takes pride in making patients feel their best. We make sure we listen and address any concern the patient might have in an efficient professional manner. Dr. Kim has been in dentistry for over 20 years and has been at this location since 09'. Graduated from the University of Buenos Aires in 94'. Dr. Kim is dedicated to helping you look and feel your best, one smile at a time.