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    Services - Dai H Bui, DDS

    Cavity treatment

    Dental exams

    Tooth filling replacement or repair

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    2 years ago

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    3 years ago

    Tried to make an appointment over the phone. Someone did pick up, but the response was unacceptable. Very unprofessional, rude.

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    7 years ago

    I've been coming here for years! Staff is awesome and dr bui is good at his craft. He's gentle and quick with dental work.

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    15 years ago

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    9 years ago

    Dr Bui and staff are top notch and all about caring customer service. I was afraid to move to a new dentist when i moved to Claremont

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    10 years ago

    The Dr. Was excellent, made me feel very calm and his staff was great. I recommend to all.

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    8 years ago

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    6 years ago

    was refered to him by a friend now my wife and daughters go to him also extremley happy with him

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    13 years ago

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    Ask the Community - Dai H Bui, DDS

    Review Highlights - Dai H Bui, DDS

    Bui's office is located in the same shopping center where I work and I first chose his office just out of convenience.

    Mentioned in 17 reviews

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    Barsoum Dental Upland

    Barsoum Dental Upland

    4.8
    (699 reviews)
    1.2 mi
    Emergency services
    Free consultations

    I've been a long time patient of Dr Barsoum, and I can honestly say the experience has been…read moreconsistently top-tier. From routine cleanings to more detailed procedures, he's always thorough, patient, and genuinely invested in your long term dental health. What really sets the Upland office for success is the team. I am sure the same standard carries through the entire practice locations. From the front desk always welcoming and efficient (no chaotic waiting room energy) everything runs like a well-orchestrated operation. Dr Barsoum takes the time to explain options clearly, never rushes decisions, and makes you feel comfortable, even if you're not exactly excited about being in a dental chair. The office is clean, modern, and runs on schedule (which I deeply respect). If you are looking for a dentist who combines skill, professionalism and genuinely caring team, this is the place. After years as a patient, I wouldn't trust my sole anywhere else!

    I am extremely disappointed with the care I received at Barosum Dental in Upland. My experience…read moreleft me feeling unheard, misdiagnosed, and ultimately traumatized. While I was out of town on July 12, 2026, I developed severe pain on the lower right side of my mouth. As soon as I returned, I scheduled an emergency appointment for July 15. I also had a previously scheduled deep cleaning appointment for July 16. During my emergency visit, the female dentist appeared to minimize my concerns. Instead of focusing on the area where I was experiencing pain, she asked whether I had seen an endodontist for a referral from a year earlier and questioned a shadow in my gums that had existed for over 30 years on the opposite side of my mouth. I requested X-rays, and a 360-degree scan was performed. After reviewing the images, she told me everything looked fine, that I had no cavities, gave me Sensodyne toothpaste for tooth sensitivity, and said I was cleared to proceed with my deep cleaning the following day. Later that same day, the office coordinator called and told me they wanted me to see the endodontist before my cleaning. I went to the appointment, and within five minutes the endodontist identified a cavity. My primary dentist confirmed the finding and recommended that my wisdom tooth be extracted. I was extremely upset that my condition had been missed during my emergency visit. I asked to speak with the female dentist who had evaluated me, but she was unavailable. I scheduled the extraction for July 17, 2026. Because I had previously had a successful experience using nitrous oxide during another tooth extraction, I requested it again to help manage my anxiety. I was numbed for the procedure and was told I was receiving nitrous oxide, but I never felt its effects. I noticed the dental assistant was on the phone for much of the procedure, and it appeared that no one ensured the nasal cannula was properly positioned. I informed both the oral surgeon and the assistant that I did not feel like I was receiving the nitrous oxide, but my concerns were dismissed. I remained anxious throughout the procedure, and the extraction was ultimately unsuccessful. I left the office emotional, traumatized, and deeply disappointed. This was the worst dental experience I have ever had. As healthcare providers, listening to patients is essential. I repeatedly expressed my concerns and felt they were ignored every step of the way. I will not be returning to this office. I also plan to verify that my insurance was not billed for procedures that were not completed, including the deep cleaning and the unsuccessful tooth extraction. I hope this review encourages the office to improve communication, patient care, and attention to patient concerns so that others do not have a similar experience.

    Photos
    Barsoum Dental Upland's front desk.
    Barsoum Dental Upland's front desk.
    Barsoum Dental team members at the Mountain Ave office grand opening
    Barsoum Dental team members at the Mountain Ave office grand opening
    Exterior of office with Grand Opening balloons

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    Exterior of office with Grand Opening balloons
    Inland Periodontics

    Inland Periodontics

    4.5
    (17 reviews)
    1.2 mi

    I came here to get a second opinion from Dr. Newbold for Gum surgery. Dr. Newbold saw me and…read moreevaluated my gums and said the surgery was not necessary. He recommended a follow up visit to see if my gum recession gets worse which I scheduled. I asked him for a quote for the surgery incase its needed so I can budget and save. Gum surgery could cost anywhere between 1k-5k. Dr.Newbold approved getting me a quote at the front desk. I was in a hurry so I told the front desk I'll email them the surgery quotes and in person they approved sending me the quote for the surgery. I emailed them multiple times afterwards and they refused to send me the quote the doctor approved. They kept telling me to call them but even in one instance when I called they refused to give me the quote over the phone. I emailed them to cancel my follow up visit. After I cancelled they suddenly billed me $130 dollars. When I called them before hand and saw them in person they also told me insurance covered my visit. Their team did not actually check if my visit was covered the two times I asked. Dr. Newbold himself is fine to see as a dentist, but the people working the front desk are abysmal and deceitful. Doesn't really make sense for me to pay $130 after they refused to give me quotes for the surgery, which is why I made the appointment in the first place.

    I've been coming to this office for a few months as I was referred by my general dentist, in order…read moreto get some periodontal work done. Dr. Alqadoumi has been the man with the plan for my dental well-being & he is top notch! He's got a great chair-side manner, explains everything in-depth - very thorough and friendly. The office staff is also great with scheduling appointments and sending reminders. If you need any kind of specialty work done, this is the team you want working with you!

    Photos
    Inland Periodontics
    Inland Periodontics
    Inland Periodontics

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    Mardirossian Periodontics and Implant Dentistry

    Mardirossian Periodontics and Implant Dentistry

    4.4
    (56 reviews)
    5.4 mi

    I was seen for a visual examination (no X-rays), it was quick less than a minute and was informed I…read moreneeded gum graphing.... After a 2nd consultation with another periodontist, I was informed I did not need gum graphing. Therefore, I called to cancel appointment and was advised to come in and speak with Dr. M. and see what he advice. I did and he stated no gum graphing was needed and I was charged a consultation fee!!! This is not right, if I had not obtained a 2nd opinion I would have gotten a procedure for something I didn't need.

    Based on all the favorable reviews, I visited Dr. Mardirossian. There are three past Yelp reviews…read morethat I should have paid attention to. Each of these reviews warned me of the shady business practices of this dental office. Complaints of high pressure tactics, unnecessary treatments and unauthorized charges should have been red flags for me. Please read on and don't make the same mistake that several of us have made. I met with Dr. Mardirossian, and he seemed professional. However, when I was instructed to meet with his office manager, Monique it literally felt like I was dealing with a used car salesperson. A previous reviewer mentioned the infamous negotiation room. The tactics she used were shady at best. She first tried to sell me on their "savings plan", which costs $780 for the year and it clearly designed to improve their profits at the detriment of the patient. I didn't trust her at all, and therefore I asked her to send a written proposal for the work to be completed. She did email me a written complete proposal for a total cost of $6348.20. Although this price was high, I agreed to have them do the work. At this point we had a legally binding contract. We had a firm offer in writing to do the work, we had my acceptance and we had mutual consideration. I work for a law firm and this was definitely a binding contract between Dr. Mardirossian and myself. Then half way through the treatment plan, the Dr. told me the next step was a CT Scan so they could create a guide for him to do the dental implants. I told him that as long as the guide was part of the contract, we can proceed. He told me to check with Monique who was not available. Monique called me a few days later to charge me $795 more for this guide!! What happened to our contract? Why are they breaching our written cost agreement and contract, by trying to extort more money from me? I complained to her and Dr. Mardirossian and they refused to honor our contract. Then, Monique calls me to ask for permission to charge my credit card $1266! She explained that she made a mistake and forgot to charge me as the previous work was done. I denied her permission to charge my card until we resolved this dispute. Later that same day, they ignored my refusal for the charge to be made to my credit card and charged the entire amount! One last thing, Monique and Mardirossian pressured me to agree to a controversial procedure called L-PRF = $1,714. I didn't want this optional procedure, wherein he used my own blood to supposedly speed up the healing process. However, I succumb to their pressure tactics and agreed. The day of the extractions, and L-PRF procedure Mardirossian struggled to even withdraw blood from my arm and the whole process was a joke. Four months later and the area was still not fully healed. What a rip-off! Please consider this review and others just like it, and think about whether you can trust this dental office and their shady business tactics.

    Photos
    Mardirossian Periodontics and Implant Dentistry
    Mardirossian Periodontics and Implant Dentistry
    Jeri

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    Jeri
    Jin Y. Kim, DDS, MPH, MS, FACD

    Jin Y. Kim, DDS, MPH, MS, FACD

    4.6
    (15 reviews)
    8.1 mi
    25 years in business
    Certified professionals

    Not very happy with the hygienist. Don't you hate it when somebody ask you a question. And then…read morethey practically tell you shush. Then why bother talking? I was not crazy about this session. I don't think I'll be back for a cleaning. I think I'll look for someone else that does cleanings. Hopefully with modern equipment and not the old hammer and chisel. And maybe they'll brush up on their people skills. Don't ask somebody a question and then shush them immediately. I didn't take it well. Not sure if others would. But I made it through. The pandemic has left me unable to deal with some people. My patience is thin.

    1. Dr. Kim told me he could save my implant. In less than 1 year, I lost my implant and $5,000…read morecash. 2. Dr. Kim refused consultation with my dentist. 3. With significant force, Dr. Kim struck and chipped my front tooth with his stainless steel needle-nose pliers. 4. Dr. Kim's staff attempted to overcharge me with my cash payment for the removal of my implant. Too many red flags. My experience with Dr. Kim was dishonest, deceptive and ridiculous. I feel like I was practiced on and taken advantage of. Draw your own conclusion -- I'll never go back.

    Photos
    Dr. Richard Lee, DMD, (left) and Dr. Jin Kim, DDS, MPH, MS, FACD (right). Both specialists are board-certified.
    Dr. Richard Lee, DMD, (left) and Dr. Jin Kim, DDS, MPH, MS, FACD (right). Both specialists are board-certified.
    First patient getting my implants put in
    First patient getting my implants put in
    Last appointment then January for the implants finished

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    Last appointment then January for the implants finished
    Phillips Ranch Dental Group

    Phillips Ranch Dental Group

    4.8
    (100 reviews)
    8.0 mi
    40 years in business
    Emergency services

    Wow! I am beyond impressed with the quality of care here. After several bad experiences in the…read morepast, I genuinely dreaded going to the dentist. That completely changed after seeing Dr. Choi. From the moment I walked in, I felt heard and cared for. Dr. Choi is incredibly knowledgeable and took the time to thoroughly explain everything in a way that was easy to understand. What stood out most was the individualized approach to dental care. Dr. Choi made sure I was comfortable every step of the way and checked in often, which helped me feel at ease. For the first time in a long time, I felt confident and relaxed in the dental chair. This dental practice has completely changed how I feel about going to the dentist, and I'm so grateful. I appreciate how the dental team is professional, friendly, and compassionate. I highly recommend Dr. Choi and the dental team to everyone!

    I've been coming here for over a year now. I originally found this office while searching for a…read morethird opinion on how to save my teeth, every other dental office I visited just wanted to pull them and go straight to implants. Dr. Merchant was kind, knowledgeable, and honest with me. He gave me real options and saved my teeth. Since then, every visit has confirmed I made the right choice. The entire team, doctors, front office staff, and assistants are all incredibly kind and knowledgeable. I can't recommend this place enough for anyone looking for quality care, genuine people, and a dental office that truly has your best interest at heart. Also, this office is very clean!

    Photos
    Phillips Ranch Dental Group
    Phillips Ranch Dental Group
    Phillips Ranch Dental Group

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    Dai H Bui, DDS - generaldentistry - Updated August 2026

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