Please be alert if they give you estimates and tell you 5 different things about why you need to get special work done RUN!! Go to someone else get a second opinion. Be extra careful and pay special attention when you’re in for your preventive, they will add on so much just to get extra $$. I’ve talked to 3 different friends and they all have had the same experience. I suggest to go the smaller dental offices.
Yola Prejean
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October 15, 2025
From check-in to check out. I had a wonderful experience. Office was very clean. The Dental assistant explained each and every action that she was doing. She is very knowledgeable and has the best bedside manners ever!
Dr Vincent Nguyen is the bomb! The best bedside manners ever!! He's very knowledgeable, compassionate, and patience.
Sharron Shields
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October 27, 2025
I had a very disappointing experience at Sienna Modern Dentistry with DDS AjaThompson. Unfortunately, the cleaning was not thorough, and I left feeling rushed and unsatisfied. Despite arriving 30 minutes early and completing the online check-in, I wasn’t seen until 30 minutes before closing, which made the entire visit feel rushed and impersonal.
The equipment did not appear clean, and shockingly, the same bloody dental floss was used across all quadrants of my mouth. This raised serious concerns about hygiene and safety. Additionally Dr. Thompson did not take the time to explain my oral health or answer questions, which left me feeling confused and dismissed.
To make matters worse. I was charged $160 for services that should have been fully covered by my insurance under preventative care. When I tried to address this, finance/office manager was extremely rude and unhelpful.
Overall, I left feeling bamboozled and disappointed. I would not recommend this office based on my experience.
Gayle Amos
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November 07, 2025
I visited Sienna Modern Dentistry for the first time recently. The staff was very professional, kind and cordial. For the first time, in visiting a dental office, my cleaning was performed by the dentist who was very kind and professional. She answered my questions. It was an all-around very good experience. If you are looking for good dentist, I highly recommend Sienna Modern Dentistry.
Terry Saulsberry
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January 15, 2026
I rate my experience 5. Both my hygienist, Ms. Kittens, and Dr. Thompson are a delight. I feel I'm in good hands. The entire staff is friendly, kind and professional.
Our Address
8740 Hwy 6 #150, Missouri City, TX 77459, USA
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Please be alert if they give you estimates and tell you 5 different things about why you need to get special work done RUN!! Go to someone else get a second opinion. Be extra careful and pay special attention when you’re in for your preventive, they will add on so much just to get extra $$. I’ve talked to 3 different friends and they all have had the same experience. I suggest to go the smaller dental offices.
From check-in to check out. I had a wonderful experience. Office was very clean. The Dental assistant explained each and every action that she was doing. She is very knowledgeable and has the best bedside manners ever! Dr Vincent Nguyen is the bomb! The best bedside manners ever!! He's very knowledgeable, compassionate, and patience.
I had a very disappointing experience at Sienna Modern Dentistry with DDS AjaThompson. Unfortunately, the cleaning was not thorough, and I left feeling rushed and unsatisfied. Despite arriving 30 minutes early and completing the online check-in, I wasn’t seen until 30 minutes before closing, which made the entire visit feel rushed and impersonal. The equipment did not appear clean, and shockingly, the same bloody dental floss was used across all quadrants of my mouth. This raised serious concerns about hygiene and safety. Additionally Dr. Thompson did not take the time to explain my oral health or answer questions, which left me feeling confused and dismissed. To make matters worse. I was charged $160 for services that should have been fully covered by my insurance under preventative care. When I tried to address this, finance/office manager was extremely rude and unhelpful. Overall, I left feeling bamboozled and disappointed. I would not recommend this office based on my experience.
I visited Sienna Modern Dentistry for the first time recently. The staff was very professional, kind and cordial. For the first time, in visiting a dental office, my cleaning was performed by the dentist who was very kind and professional. She answered my questions. It was an all-around very good experience. If you are looking for good dentist, I highly recommend Sienna Modern Dentistry.
I rate my experience 5. Both my hygienist, Ms. Kittens, and Dr. Thompson are a delight. I feel I'm in good hands. The entire staff is friendly, kind and professional.