1. Ruben Armienta, DDS

    1. Ruben Armienta, DDS

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    Services - Ruben Armienta, DDS

    Cavity treatment

    Dental exams

    Tooth filling replacement or repair

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    E I.

    Have been going to this place for about 3 years now and the staff is so friendly! We switched from another dentist in diamond-bar because he decided he was going to do a crappy job in pulling out teeth and cleanings. We were recommended to Dr. Armienta by some friends who were family and decided we had nothing to lose. It all started with a simple tooth removal that I did not feel at all compared to the other unexperienced dentist , and he became our permanent dentist. He is very professional and the staff is very polite and respectful. They are also very quick and still end up giving you a good cleaning. The waiting room is always clean and packed with magazines to read while waiting. Like I've seen on a previous tip, don't try to say you floss every day, because he knows lol. Thanks Dr. Armienta! :) A.I.

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    1 year ago

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    3 years ago

    The best! Great staff and Dr. Armienta is solid. Everyone in this office is happy and they simply do great work.

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    7 years ago

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    13 years ago

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    12 years ago

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    8 years ago

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    8 years ago

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    Ruben A.

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    9 years ago

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    Thank you for your comment.

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    11 years ago

    Best Dentist in Town! Always received great service at every visit. Would refer to all my friends. Thanks.

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    10 years ago

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    Page 1 of 2

    Ask the Community - Ruben Armienta, DDS

    Review Highlights - Ruben Armienta, DDS

    Letty explained what my benefits covered and assured me I could use my FSA to cover my portion of the costs.

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    Clements Dental Family

    Clements Dental Family

    4.8
    (261 reviews)
    1.7 km

    Very good service they explained procedures to be easily understood. Very nice people throughout…read morethe office. The Dentist is great at explaining your options.

    Bottom line: I left feeling like I may have been misinformed about the condition of my teeth. I was…read moretold I had multiple cavities and needed crowns, but after getting a second opinion from my longtime dentist, I was told I had no cavities. That major difference in diagnosis was very concerning and made me lose trust in the practice. Full story below: I chose this dentist based on the positive reviews, but my experience was very disappointing. One thing that immediately concerned me was learning that patients were being offered an incentive for leaving reviews, which made me question how genuine those ratings really are. During my visit, the overall atmosphere felt insincere. What was most upsetting was being told I had three cavities and needed crowns, despite having seen my regular dentist only three months earlier. That diagnosis did not sit right with me, especially because it seemed to be presented before a thorough exam, and when I asked questions, I felt dismissed rather than respected. Because I was uncomfortable, I followed up with my longtime dentist for a second opinion, driving all the way to Riverside because I trust him. I was then told I had no cavities, and that the only possible issue was an older root canal that may need to be redone. That huge difference in diagnosis left me with serious concerns about the accuracy and honesty of my visit here. I am sharing this because I think patients deserve to feel informed, respected, and confident that recommended treatment is truly necessary. Unfortunately, that was not my experience.

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    Clements Dental Family
    Clements Dental Family
    Clements Dental Family

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    Whittier Modern Dentistry

    Whittier Modern Dentistry

    3.8
    (75 reviews)
    2.8 km

    Even when I'm nervous to go to the dentist, I'm excited that it's here at this location. The…read moredentist has always been a touchy topic for me, but I feel so lucky that I can get care at a place that is invested in me. Dr. Cody is funny, gentle and kind. He has got the best personality and I look forward to all my appointments with him. He provides great care and does it so personably. Dr. Barry is knowledgeable and performed a difficult root canal that went quickly and smoothly. Alyssa, my hygienist is so sweet and when she performs my cleaning has the delicate touch needed while doing a thorough job. Office manager Liz is always helpful and I look forward to catching up with her when I check-in. I highly recommend coming to this location. I've been a patient of modern dentistry for over 10 years and when this location opened closer to home I was nervous I wouldn't like it. I'm so glad I do and as long as this staff is still there I will continue to be a loyal patient. Also note parking can be tough at later times because it is a busy shopping center. Facility itself is a brand new build, rooms have always been clean and I've always felt safe under their care. Highly recommend the gum laser treatment! My dental health has improved since coming to this location.

    Poor communication and dishonest billing practices. Billed me for "comprehensive exam" when only…read moreone tooth was examined and addressed. Nothing about my other teeth, gum health, jaw problems that I mentioned during intake. When I contacted them about fixing the billing, I never received a response. I was also promised a follow up on my insurance, didn't receive one. Also I booked my appointment with Dr Laura, but received an exam from Dr Katelyn instead. Would have been fine, however I didn't find the bedside manner to be great. For example when I mentioned that I wanted braces she simply asked "Why?" I found this odd since previous dentists had observed issues with my jaw alignment, bite, and teeth crowding.. but this time the dentist seemed confused as to why I'd even want braces. If a comprehensive exam was truly given in the first place, I don't think it would have been a question. Another example: after examining my cracked tooth she said matter-of-factly "I think we both know that it needs to go". Actually no I didn't know, that's why I wanted to get it examined in the first place rather than asking for an extraction. Weird vibes the whole time, just seemed annoyed like I was wasting her time. The place wasn't busy when I went, but wait times were very long. In total I spent about 1 hour and 30 minutes there. The actual exam was less than 10 minutes. I added one star because the lady at the front desk was very nice and welcoming.

    Photos
    Taking pictures of him pearly whites!
    Taking pictures of him pearly whites!
    Welcome to Whittier Modern Dentistry in Whittier California!
    Welcome to Whittier Modern Dentistry in Whittier California!
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    Ruben Armienta, DDS - generaldentistry - Updated July 2026

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