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    Leonard Lem, DDS, MD

    3.9 (45 reviews)
    Closed 9:00 am - 5:45 pm
    Updated 3 months ago

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    Great view from the dental chair
    Lisa K.

    Highly recommend this place! I was referred here by another dentist because I had to get my wisdom teeth pulled out and had procrastinated on it so the roots were so deep my regular dentist couldn't do it. I'm glad I got it done here. Dr. Lem and his staff were so incredibly nice and thoughtful. I've always been slightly scared to go to the dentist and the whole experience great. Dr. Lem takes the time to walk you through the procedure (even during) so you're never surprised on what's going on. His assistants during the operation were so kind, considerate, and took great care of me. The healing process was not bad at all. I had pain the first day after surgery but the second day onward there was virtually minimal pain and discomfort. Bonus - rather than boring white walls, the view while you're waiting and getting your teeth done is awesome!

    Jeff T.

    Dr. Lem removed a cracked tooth for me & installed a titanium implant last year. I felt very little pain, he uses the latest technology, his work is impeccable, and his staff is kind. Everybody is very competent. The front office is pretty persistent with reminding you about your appointments, but if you're a procrastinator like me, it was a benefit Since installing the crown over the implant, I've had zero problems & don't even notice it's not my own tooth. This was my first implant & Dr. Lem & his office did a great job explaining everything and putting me at ease. I recommend his office to my friends & coworkers without hesitation

    Stephanie L.

    I'm surprised at all the negative reviews on here for Dr. Lem. I was referred to Dr. Lem by my dentist since I had to remove a wisdom tooth out. I remember the nurse telling me that this would be the best nap I've ever had. The next thing I remember was waking up and seeing the nurse next to me. I asked her when were we going to get started and she informed me the procedure had already been done. It was indeed the best nap I've ever had. I think Dr. Lem did a great job because I didn't swell up nor was I in any pain what so ever. I returned back a week later for a check up and everything was great. I was back to eating solid food and using mouth wash again. Yay! I'll admit the procedure was a bit costly. I paid cash and spent a little under $800 for 1 wisdom tooth. They told me mine costed more because of how impacted it was and not to mention I was put to sleep. Best decision ever! since I don't endure pain well. They do accept credit cards but will give you a discount if you agree to pay in cash. They have a parking lot that they share with other offices so at times it maybe difficult to find a parking spot.

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    4 months ago

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    little afraid at beginning, but notice the service was very professional, and billing quotes are spot on. I am happy.

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    13 years ago

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    Leonard L.

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    6 years ago

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    Page 1 of 2

    Ask the Community - Leonard Lem, DDS, MD

    Review Highlights - Leonard Lem, DDS, MD

    As for the front desk, Susan is great and super helpful but I can't say the same for the other staffers.

    Mentioned in 4 reviews

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    5.0(24 reviews)
    1.8 mi

    My experience with Glendora Oral Surgery and Implant Center has been fantastic. From the moment I…read morescheduled my appointment to the day of my treatment, the entire team took excellent care of me. They made me feel welcome and comfortable throughout the process. I was pretty nervous and scared before my procedure, but they put me at ease and explained everything clearly and thoroughly. Their professionalism, compassion, and attention to detail made a huge difference. What impressed me most was that they called me later that afternoon after my surgery to check on me and make sure I was doing okay. That level of care goes a long way, and I truly appreciate it. Thank you to the entire team for such outstanding care. I highly recommend Glendora Oral Surgery and Implant Center to anyone looking for a skilled, professional, and caring oral surgeon.

    This is our second time visiting Dr. Susan Lee, and we had another great experience…read more My 9 year old son needed to remove an impacted tooth, take out some baby teeth, and have a chain placed for his braces. He is usually very scared of doctor visits and even the word "surgery," but Dr. Lee and the whole team were amazing with him. They explained everything in a simple way he could understand and made him feel comfortable. For the first time, he walked into the surgery room with them without being scared or looking back at me. Dr. Lee, Kristy, Robert, and the whole team are very professional and experienced with kids. As parents, we felt very relieved and confident in their care. Highly recommend to any family looking for a skilled and compassionate oral surgery practice.

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    4.8(32 reviews)
    1.9 mi
    Family-owned & operated
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    Beware! Extremely disappointed with the work done here for a crown…read more Initially when I had the temporarily crown put on, the bite was off and Dr. Desai shaved a significant portion off which caused my tooth to become extremely sensitive to a point where I cannot eat from one side of my mouth. Once the actual crown came, I should've known something was off when he spent a good amount of time shaving and adjusting the crown and opposing teeth. After the crown was put on, now both my crown and opposing teeth is extremely sensitive to temperature and I am experiencing pain from chewing. When I brought my concerns to Dr. Desai he stated everything looks fine and the pain should go away over time. I decided to go to another Dentist for a second opinion and his diagnosis was that the crown was oversized and it needs a replacement. He performed a series of bite test and he showed me which spots were higher than the others. Also you can visibly see that the crown was entirely flat on top due to all the shaving he performed on an oversized crown. Dr. Desai should have known that the measurements were wrong when the temporary cap did not fit. But instead of remeasuring the tooth and reordering the right sized crown, he decided that flatting the entire top side of the crown will do the trick. Initially his front desk staff was extremely responsive but after asking for a copy of the receipt and pictures of the x-rays, their response was are "extremely busy" and will try to email me the next morning. Next morning came, still no email.

    Ive been coming to this office for a few years now, its beautiful clean and a aesthetically…read moreappealing office, the staff are always super friendly and attentive. I can say its been great, my daughter has braces and they've been taking good care of her in that department as well "thank you Rudy & Alicia". I have no complaints here. I recommend Dr. Desai and staff 10/10 Keep up the great work.

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    New Vision Dental - Interior

    New Vision Dental

    3.7(110 reviews)
    0.5 mi

    This review comes after visiting a few other dental offices. I needed A LOT of dental work done,…read moreand this is why i felt the best thing for me to do was visit multiple offices to make the best decision to start this lengthy process. I visited New Vision Dental, and i have to say Karina and Edgar made a great impression on me!!! Like I said i had a lot to get done so I had to see everyone quite a lot, and each and every time it was beyond pleasant. They always answered all my questions, called and checked on me after every visit to make sure i was doing okay after any procedure. I had Dr. Tran as my dentist and one thing i did really appreciate about him is he always made sure i was comfortable and not experiencing pain. That's the exact type of dentist i prefer!!! I also had Dr Brandon Au at one of my visits and he was amazing as well!!! Very knowledgeable and caring!

    STAY FAR AWAY FROM THIS PLACE!!!! They charge you a…read moremandatory oral cancer "screening" which you cannot opt out of and is required every 6 months. And if you don't agree to accept this screening and pay, they won't see you. This type of screening uses a special device that shines light to identify cancerous tissue. No such device was used on me so they falsely charged me for a service they did not perform. Of all my years of faithfully going to the dentist for my routine cleaning and checkups, I've NEVER had to do or pay for this type of screening, especially since it's not REQUIRED. This place wants to fleece you as much as possible. You're not a client or patient. You're just a dollar sign to them. This is sad because the actual dentist is nice. If I could give negative stars for this review, I would. I say again, STAY AWAY FROM THIS PLACE!!!

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    New Vision Dental - Great staff , never long waiting times to be seen.

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    Great staff , never long waiting times to be seen.

    Antoine Sayegh, DDS - implantasmile

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    4.8(81 reviews)
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    Dr. Sam Sayegh did an amazing job on the three dental implants and crowns for my mom. She had many…read morecomplicated dental problems, and he carefully found the best treatment plan to give her the best possible results without putting her through unnecessary pain or procedures. He also helped save her money while still providing outstanding care. Even though he is young, his skills, professionalism, and attention to detail are truly impressive. You can tell he genuinely cares about his patients and takes pride in his work. He must have inherited every perfection from his father, Dr. Antoine -- the dedication, precision, and passion for excellent dental work truly show. The entire implant process was almost pain free with very minimal discomfort. The specially designed crowns gave her the best bite and her recovery was fast because of the excellent care and detailed follow-up from Dr. Sayegh. The staff are always kind, patient, and welcoming, and the office is beautiful, clean, and professional. We are extremely grateful for the care she received. There is truly no "missing puzzle piece" here -- everything was handled perfectly from start to finish. Highly recommend!

    Dr. Sayegh really takes care of his patients. He gives quality care. My smile looks good. His…read moreoffice is always extremely clean. The front office is very nicely designed. All of the staff cares about their services.

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    Sachin P Desai, DDS - Glendora dentist, Sachin Desai DDS

    Sachin P Desai, DDS

    4.3(77 reviews)
    1.9 mi

    After my last review I decided to come on and do an update. Two of my fillings fell out. I've never…read morein my life had a filling fall out! I went back two separate times to have one of them replaced I don't understand how this place is still on business. They try to upswell all kinds of crowns and in necessary things. Because of this office I haven't gone back to a dentist in way to long.

    We started going to here years ago when it was more family friendly and more welcoming…read more I took my now 10 yr old for all his check ups and was always told he had no cavities. We recently wemt to a new denstist who said he had multiple cavities and one was so bad he was going to need a root canal. I was shocked to learn this as we were never told anything with Dr Desai. I pulled his xrays and those cavities had been there for years. We trusted Dr Desai and were lied to with him saying my soon was good and to continue to do what we are doing at home. Also, After COVID it seems this office is no longer the same, they became more about the money.and less caring for patients. You cant get an appointment til months on out and he has you break appointments up into two visits....maybe to get more money I guess....I did try to contact Dr Desai to discuss my concerns and never got a call back. When I called to make an apt they said they would.no longer see me or my family because we had too many missed apts...ok bye....I do not recommend this dental office. So happy we gound another office who offered SAME DAY APTS!!

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    Abari Orthodontics and Oral Surgery - San Dimas - Smiles like this, make it all worth wild!

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    4.2(195 reviews)
    2.1 mi

    Our experience at Abari Orthodontics has been amazing, and a huge part of that is because of the…read moreoffice manager, Edina. This is my 2nd time getting braces (lost my retainers in high school and teeth shifted) and my son's 1st and last time . From the very first visit, Edina made us feel welcomed and taken care of. She answered all of my questions and prepared a detailed treatment plan including estimated monthly payments.  Abari Orthodontics staff are always friendly, professional, and incredibly organized. Checking in for appointments and scheduling future appointments has been completely stress-free. My son and I mostly followed up with Dr. B., who is very knowledgeable, professional, and genuinely someone who cares about his patients. He takes the time to explain the treatment process clearly and always makes his patients feel comfortable and confident during appointments. It's rare to find someone so patient, attentive, and dedicated to excellent customer service. Thank you all for making every visit such a positive experience!

    My daughter was referred to Abari Orthodontics for an oral surgery consultation regarding the…read moreextraction of my 8-year-old daughter's severely decayed permanent molar (#14). Before we could even be seen by the oral surgeon, I was told that she needed an orthodontic consultation first. As expected, because my daughter is only 8 years old and still has many primary teeth, we were told she was not a candidate for orthodontic treatment at this time. We then had to schedule yet another appointment to finally see the oral surgeon--the very reason we were referred to the office in the first place. During the oral surgery consultation, the doctor agreed that the tooth needed to be extracted but recommended a bone graft that was not covered by insurance. When I asked whether the extraction could be performed without the bone graft, I was told by the treatment coordinator that the doctor would not perform the extraction unless the bone graft was also completed. As a parent, I wanted to understand the specific clinical reason for that decision. I requested written documentation explaining why the bone graft was necessary in my daughter's case and why treatment would be denied without it. Instead, I was provided with paperwork recommending a second opinion, which did not answer the questions I had asked. My concern is not that a bone graft was recommended. My concern is that I was unable to obtain a clear explanation of the clinical findings supporting the recommendation or the reason extraction alone was not considered an option. When parents are being asked to approve a procedure that is not covered by insurance and comes with a significant out-of-pocket cost, they deserve a clear and detailed explanation. Having worked in the dental field myself, I understand how insurance reimbursement and contracted fee schedules work. In some cases, additional procedures that are not covered by insurance can create significant out-of-pocket expenses for families, particularly when patients have state-provided insurance or plans that reimburse at contracted rates (HMO). While I cannot speak to the intentions of this office, the situation raised concerns for me because the recommended treatment involved an additional non-covered expense, yet I was unable to obtain a clear explanation of why it was required before the extraction could be performed. Parents should be aware of this and feel comfortable asking detailed questions whenever additional out-of-pocket procedures are recommended. I encourage other parents to ask questions, request copies of radiographs, seek second opinions when appropriate, and make sure they fully understand the rationale behind any recommended treatment before proceeding.

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    Abari Orthodontics and Oral Surgery - San Dimas - Such a great example for her little brother! Keep up the good work guys!

    Such a great example for her little brother! Keep up the good work guys!

    Abari Orthodontics and Oral Surgery - San Dimas - Our daily mission is to consistently provide each of our patients the highest quality orthodontic and oral surgery services i...

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    Leonard Lem, DDS, MD - oralsurgeons - Updated June 2026

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