Jack OH, DDS

Best dentist around without question. Have been going to him for almost 15 years. Very friendly staff who make me feel at ease even if the work I’m getting done isn’t so pleasant. And dr oh does top notch work. Will NEVER consider going to another dentist.

I have had a long road of dental work even though I’m 24 years young. I had some crappy dental work done when I lived in Ohio back when I was in high school, and yet here we are years later correcting all of that work. When I moved back to California I went to a Dentist in Upland who was great, I had a root canal and a crown placed and things were great for about 2 years. then my crown came off and the dentist attempted to fix it. it was unsuccessful and around that time I lost my private insurance. He quoted me for an implant, and it was extremely high, then the office never really followed up and kinda left me toothless and hanging, so I decided to take my mouth and money elsewhere. I was referred to Dr. Oh by a family friend who has been seeing him for many years. My mother-​in-​law saw him first and raved about how kind and funny he was, and how beautiful his office was. I booked an appointment and went in to see what could be done. Dr. Oh’s staff is so kind– his front office staff and his dental assistants all offer the same amazing customer service and kindness. Dr. Oh himself is funny and kind and is thorough. He set up a plan to get my tooth fixed and worked with me on payments considering I had no insurance. I have been back many times for my cleanings and to get my implant placed. Dr. Oh and his staff have accommodated me and done their best to ensure that I am comfortable, even in painful situations. I highly recommend Dr. Oh if you are looking for an honest, thorough, and kind doctor.

Great office. Dr Oh is an honest dentist. He won’t make you get unnecessary procedures. The hygienist there is great as well. I believe her name is Elisa. If you come to this office you won’t be disappointed.

Dr. Oh. is the best. He is accommodating and competent. His Staff is also great. He has been my family Dentist for fourteen years and my wife’s for at least twenty-​three years. He works with your insurance and does quality work without any pain. He is also great with kids.

I have an irrational fear of the dentist. I’m 34 and for the past 15 years refused to go unless absolutely necessary ((usually resulting in extractions) and found dr. Oh by way of his (AMAZING) hygienist, Elisa.
I just finished round one of a deep cleaning, filling and crown prep and am wondering why I was so insanely terrified.
Elisa is magical. The right side of mouth looks brand new.
She’s gentle, patient, kind and thorough.
Dr. Oh is funny, quick, and really great.
Nothing that wasn’t necessary was forced on me.
I was given options and told that the pricier solution might not work for me, so he opted not to do it.
I have found my dentist office, have been singing his praises and will refer anyone and everyone I know to his whole team.

Staff and doctor were friendly, and the price was reasonable. However, I really didnt like that I had to wait an hour and 20 minutes to see the doctor when I already had an appointment. Also, they made me sign an estimate that said «I request and authorize the dentist to perform the work described above,» when I told them I’m not exactly sure when I will come back again for the treatment.

Prior to Dr. Oh, I have had very scarring dental experiences where the Dr. has been very judgmental and scolded me for whatever issue I had been experiencing with my teeth. I read very positive reviews about Dr. Oh and they are nothing short of the truth.
Dr. Oh is an awesome dentist who is very honest with his patients. He tells you like it is and does amazing work. I have had root canals, fillings and cleanings done and have been referred to an amazing Oral Surgeon for my wisdom teeth extraction. From the time I walk through the door by his amazing staff to the work done in the chair, it has always been the best experience I could hope for.

This is the first dentist I EVER been to that I actually like. He is so nice and considerate of your pain level. He makes you feel comfortable by laughing and making jokes. I didn’t feel anything when I got my fillings on both sides. His staff is really nice as well. A++++ Great place!

Great experience. Phenomenal friendly staff and Doctor is so good at making sure you feel no pain.

I have been going from dentist to dentist trying to find a good dentist. I was tramatized by another dentist in chino when I got my teeth pulled. My friend Tom Albers recommended Dr. Oh. I am happy I found a good dentist. I’m no longer scared of going to the dentist. He is so nice and funny. The staff is wonderful as well.

I’m conflicted because I want to keep this secret to myself (I’m selfish), but Dr. Oh and his staff are so wonderful that they deserve some props.
You can tell when you first walk in that everyone in this office are dedicated and love what they do. Dr. Oh is professional and only does the work that is necessary in a quick and painless manner.
This is the best part. I had an emergency and had to have a crown replaced. They quoted me a price of $ 150. I was puzzled because I’ve had crowns before and knew that I’ve paid more. Sure enough, when I got my insurance paperwork in the mail, it showed that I did indeed owe more plus I also had a $ 50 deductible. So I took the paperwork to the office and asked, «Ummm…don’t I owe more?» They looked at the paperwork and said no, this is what the doctor charges and they write off the rest. Huh??? Who does that??? I have never been to a doctor or dentist that does that. One of my last dentists was late for my appointment, came breezing in and asked me if his hair looked ok because he drove his convertible Mercedes in that day. This really shows me that Dr. Oh cares about his patients and that he loves what he does.
The one thing that I’ve noticed is that some times they get backed up on their appointments. Bring a book or something to keep you occupied just in case you have to wait. There are many times that I suspect the staff have very short lunches and stay late just so they can attend to the patients and the emergency walk-​ins. These are dedicated professionals!!!

My wife and I visited Dr. Oh yesterday. The first impression was very refreshing, thanks to the joyous smiles and hospitality of the front desk staff. Great work! The dental assistants were super friendly and very knowledgable. I bet being in such a comfortable and state of the art environment only enables Dr. Oh’s staff to be so superior. His equipment and work place seems to boast the latest and greatest in the dental industry. I could be speaking out of my @$$, but it doesn’t take a genius to realize the peace of mind a happy child brings after leaving the dentist pain free. When we brought our son here, the work was quick and painless, and he said, «Dr. Oh used lasers, how cool is that!» Haha. Then there’s Dr. Oh, this dude is just frickin’ hilarious. I’ve only met with him once, but that’s all it took to see that he’s in love with what he does and that he appreciates the fact that he can make his patients laugh. He’s incredibly professional and at the same time gives off that vibe that you wouldn’t mind having a beer with him n your homies. Keep up the good work Doc!

I started going to Dr. Oh about 5 years ago when they used to be in their old office. First that you notice is the attitude of Dr. Oh and the staff, absolutely patient friendly and fun (how often do we say it nowadays about other docs?). However what really keeps me very loyal to this practice is the quality of treatment. I had every possible procedure done there: simple fillings, crown, extractions and even implant, all executed flawlessly. Now I take my kids there and what can be a higher recommendation?

Dr. Oh is the best Dentist ever! Stop searching and make and appointment with him. I refer everyone I know to him. He is also great with kids and his staff makes going to the dentist fun. Dr. Oh never performs any work that isn’t necessary and work that he doesn’t discuss with you before. He is very honest and I have never received a large surprise bill from him like so many other dentists i worked with in the past. If there is such a thing as an enjoyable dental visit you will have one at Dr. Ohs office.

A GREAT PLACE TO VISIT!
First of all, I have to say the front desk ladies are very nice to their customers. They always carry a smile when I came in to visit the office. (especially Mercedes) Mercedes is a very nice lady… she taught me some little tricks about how to clean my teeth correctly, recommended me which products she thinks it’s good for my teeth, and tried her best to work with my insurance plan…
The doctors are also very professional as well. I’d definitely come back to visit this lovely place. Thank you.

Dr. Oh is the Best! He is honest, friendly and super funny. I am so glad I found him!!! I’ve had all four wisdom teeth extracted by him. My first two about two weeks ago and the last two yesterday (05÷04÷13). I was really nervous for the first two extractions but he really put me at ease by making me laugh. I also had three resin (white) fillings done by him and they were painless. I’m recommending him to everyone I know.
His office is state-​of-​the-​art and his staff is ultra friendly. They always have a smile on their faces.

OH my. what a great dentist he is (:
If you’re looking for a new dentist, you’ve found him. Super informative and professional with friendly and HAPPY staff. Whoever said this field of work has the highest suicide rate because all they do is look inside people’s mouths probably never worked for Dr. Oh before. Everyone was so lively and full of smiles — definitely made my visit so much easier and less stressful. Even though I only went for the exam and cleaning, I still get really freaked out worrying that there might be something wrong or I might have to take my wisdom teeth out (something he did suggest, sadly). I like the fact that he wasn’t pushy and was very honest about everything.
The building that its located in was so pretty I felt like I was going into a hotel. One thing I thought was a bit weird was the stations they had. It wasn’t in seals rate rooms or anything, just separated by the shelving unit and such so you can hear everyone so clearly — definitely heard the convos the bf had with his doctor couple stations down!

I love Dr. Oh! His office is state-​of-​the-​art and he is super nice and friendly. He makes a lot of small talk and jokes to make you feel comfortable. His support staff is also great.

A few months ago I went to a dental clinic in Montebello and was informed that I had 5 cavities! A bit shocked, my dad advised me to get a second opinion. So I went around Diamond Bar, since there are about 5 dentistries on Grand and Diamond Bar Blvd, asking for price comparisons. All the other dentistries looked at the original price and modified their price to be slightly cheaper. Only at this dentistry that the receptionist took no notice of the above prices and gave me their base price. Which was the cheapest out of all 4 dentistries that I went to. Immediately, I felt like this place was very honest and I would get good service and not feel cheated. I have loved this place ever since.
So when the day came for me to get my fillings, Dr. Oh took x-​rays of my teeth. I had copies of my x-​rays from the previous place and he informed me that it wasn’t enough. I didn’t have a full set, cause I only had 4, and that a full set was 12 x-​rays. I had no idea that I didn’t have a full set and was a bit upset that I got screwed over from the previous dentistry. After taking x-​rays and examining my teeth, Dr. Oh told me I didn’t have any cavities and that the black spots were just stains! Wow! I could not believe that I went from 5 cavities to none! Fillings are really expensive so Dr. Oh couldn’ve lied to me and had me get fillings, but he didn’t! This just made me trust this place soooo much more! I’m so glad that I went here, I wish I had never purchased that stupid groupon deal for the other dentistry. Save yourself some money and go to someone you trust. Like Dr. Oh.
Service: Dr. Oh is a really nice guy. He makes small talk with you and doesn’t make you feel scared or uncomfortable. The dental assistants and receptionists are all very nice, sociable, and personable. I ordered a retainer and the lab accidentally sent it the wrong office without letting the office know and when I arrived they were really upset for me. I really did not care that much, a bit bummed of course, but I didn’t complain. However, the secretary was really angry and I could hear her yelling on my behalf. I was really shocked but pleased because this shows that they genuinely care about their patient’s treatment even when the patient themselves don’t.
Price: Very good price, reasonable too. I would recommend anyone who doesn’t want to feel ripped off to go here. I trust Dr. Oh completely and would take all his recommendations and trust his every opinion.
Cleanliness: Very clean facility, but I they are moving to a new office soon in the H Mart plaza. Every tool that they used was sterilized and came in a package.
Overall: Best dentistry in Diamond Bar! The staff is amazing, Dr. Oh is the nicest dentist every, and they are very accommodating. Good price and I would trust that I am getting the best service for my money. I love this place! I used to be petrified of dentists but now I see them in a whole new light. Thank you Dr. Oh and staff! You are the best dentistry in town-​no-​EVER!

They made sure every single question I had was answered, and are always available if I think of any more questions I want answered. Their staff is the most friendly, welcoming staff I’ve ever dealt with. They are so warm and professional, and make the whole experience that much better. I was so impressed with the progress I was able to make after visiting them. All my questions were answered, and I feel a lot more confident and hopeful about the future.
Thank you,
Donald Chapman