1. Alan Barton, DDS - Oakhill Dentistry

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    Petaluma, CA

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    Alan Barton, DDS - Oakhill Dentistry

    5.0 (2 reviews)
    Closed 8:00 am - 4:00 pm

    Services - Alan Barton, DDS - Oakhill Dentistry

    Cavity treatment

    Crown cleaning

    Dental exams

    Alan Barton, DDS - Oakhill Dentistry Photos

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    2 years ago

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    7 years ago

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    Petaluma Dental Group - Relaxing trees.

    Petaluma Dental Group

    3.2(126 reviews)
    1.9 mi

    I was blown away by the whole experience. This place is organized and well run. The people are…read moreso friendly! They have massage chairs in the waiting room, Netflix on the ceiling of the patient care rooms, essential oils, and a bunch of other comfort options. It feels a lot less stressful than all of the other dentists I have been to.

    MY experience at this office started out fine, but I've since had two very disappointing…read moreexperiences and have left for another dentist. I've always taken good care of my teeth but due to nighttime grinding, eventually had wear a mouth guard. Apparently I had a few teeth with cracks by that time and Dr. Mangrum told me I would need crowns so over the course of two years I had three crowns put on. One of them fell off within a few weeks of being put on. I returned to the office and they re-cemented it. A few months later it fell off again. At that point they told me I didn't have enough tooth length to hold onto the crown (I felt this should have been known from the beginning) and I needed a new procedure where they cut away some gum to lengthen the tooth. They made a new crown and when they cemented it in, they exerted the most pressure I have ever felt in my mouth. Two years later (and crowns typically last a lot longer than that) I developed a toothache around that crown, the first toothache I have ever had. I knew something was going on (I suspected an infection) so I made an appointment and went in. The dentist recommended that I see the endodontist (root canal guy) in their office so I went in again to see him. He didn't take a CT scan (common procedure I came to find out), and after tapping on my tooth and blowing air on it he pronounced me fine and told me to just keep an eye on it. A day or two later I was in so much pain, I knew it was infected and called the office to get a prescription for an antibiotic. I didn't want to return to this office since they had missed the infection so I found another dentist who could see me immediately. He took a CT scan and saw a raging infection. Referred me to an endodontist. She also took a CT scan and told me my tooth was unsalvageable, big infection, and needed to be extracted. I began this process and ended up with an implant. At this point I thought about writing an honest review of my experience but decided to leave it alone. My second bad experience- a month ago I was eating and felt something crunchy in my mouth. It was part of another crown Dr. Mangrum had done that just slid off the tooth. It was 2 1/2 years old so insurance won't cover a replacement. My current dentist saw me immediately and made me a new crown. I called Dr. Mangrum's office to talk about being reimbursed for this since it was a relatively short time since it been put on. I explained that I didn't want to return to her office to have it done because I had no confidence at this point in the work being done since having two fails. They denied my request for reimbursement, even partial, citing that they would have looked at it and might have decided to replace it at not cost to me, even though I fully explained why I wouldn't return to their office. Once trust and confidence are gone, it's hard to put yourself in that situation again. I almost never write a bad review. I don't know f I ever have, to be honest, but I felt so let down by this experience that I thought it was time.

    Photos
    Petaluma Dental Group - The tool, the assistant used on my mouth that she was not qualified to use.

    The tool, the assistant used on my mouth that she was not qualified to use.

    Petaluma Dental Group
    Petaluma Dental Group - Nature at work!

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    Nature at work!

    Alan Barton, DDS - Oakhill Dentistry - generaldentistry - Updated September 2026

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