SmileJet

Patients

Reviews of MOS Dental Clinic Siam Square.

Bangkok, Thailand. 73 aggregated from Google. Screened for duplication and printed as written. They are not visit-verified.

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SmileJet AI analysis

What these reviews add up to.

7.0 out of 10

Overall score

50 reviews read

2 public sources checked

Confidence in the reading: Medium

Last written 20 May 2026

MOS Dental Clinic at Siam Square is an Invisalign Diamond Provider with 25 years of history, Chulalongkorn and UCLA-trained founding doctor, and CT-scan and CAD-CAM technology in a prime BTS Siam location. The clinic is part of the Oracare 30-branch network. Recurring complaints about long wait times, poor appointment management, and specialist unavailability (doctors present only 1-2 days per month) are material concerns for ongoing treatment patients and tourists on tight schedules.

Authenticity

7/10

Rating 4.62/73; below 4.70, no manipulation deduction. Genuine mixed review pattern: generic 5-star majority offset by specific, detailed negative complaints. Organic.

Treatment quality

7/10

Invisalign Diamond Provider since 2016, implants with CT-scan and CAD-CAM. Conflicting filling diagnosis in one complaint. Aligners degrading from extended wear due to scheduling gaps.

Cleanliness

8/10

Consistently described as clean and well-maintained. One off-topic complaint about liquid splashed from window on passerby. Dental environment itself rated positively.

Team

6/10

Named: Dr. Adisorn (founder, UCLA MSc Implants), Dr. Opas, Dr. Jub, Dr. Airin, Dr. Toraphol. Doctors available 1-2x/month at this branch. Poor staff coordination and conflicting advice documented.

Price value

7/10

Invisalign 100,000+ baht noted by one patient. Emma Dong confirms transparent pricing. No upselling patterns. Facebook page as only digital presence limits price visibility.

Tourist suitability

7/10

Siam Square Soi 1, BTS Siam 2 minutes, heart of Bangkok tourist zone. Emma Dong confirmed same-day emergency retainer fix. English adequate. Long wait times are a concern for time-limited tourists.

What comes up well

  • Invisalign Diamond Provider since 2016, CT-scan and CAD-CAM in-house
  • BTS Siam 2 minutes, heart of Pathumwan tourist zone
  • Same-day emergency fix confirmed by international visitor
  • Oracare Group 30+ branch network; founded 2000 by UCLA MSc Implants doctor

Points to weigh

  • Long wait times documented in 5+ reviews including with appointment (up to 1.5 hours)
  • Specialist doctors available only 1-2 days per month at this branch
  • Conflicting cavity diagnosis between doctors in same visit (one said 5 fillings, another said none needed)

This analysis is written by AI from the reviews below and the public sources it could find. It is a reading of what patients reported, not a clinical endorsement and not medical advice. How clinics are listed and screened is set out in our trust and safety policy.

The evidence

What patients actually wrote.

4.6

out of 5, from 73 reviews

5 65
4 1
3 0
2 1
1 6
CHONNISA SOMPINIJ via Google 5.0 out of 5
The doctor and the staff at the clinic are very kind.
อรวรรณ เภาตะนะ via Google 5.0 out of 5
This is a case of orthodontic treatment with Dr. Opas at the Mos Siam branch. Dr. Opas is available every 2nd and 4th Sunday of the month. He provides excellent advice and is very meticulous. My upper teeth were spaced apart and my lower teeth were pushed too close together, but now they are starting to align. #I chose this branch because I mostly work Monday to Saturday and have Sundays off,…
Read the rest of this review

and a colleague recommended it. For those who don't have many days off or have fixed days off, I highly recommend this place.

suparat botmart via Google 5.0 out of 5
Conveniently located near home...it doesn't take long to get there.
Jeerajit Tammanarak via Google 5.0 out of 5
Good service, the doctor and staff are very nice and speak very well.
Chalida Sae Wong via Google 5.0 out of 5
The doctor took excellent care of my case. The other staff members also provided great advice and showed great care for the patients.
Noppadon Phongchawee via Google 1.0 out of 5
The service was terrible. They even gave me the wrong change. I had to transfer the money back to them. This is the last time I'll ever get my money back.
P via Google 1.0 out of 5
I'm not a customer, but I was walking by when the clinic splashed yellow liquid out the second-floor window, which hit my head. The Siam security guard also looked up and then closed the window as if nothing had happened. Stop being so selfish if you want your business to flourish. Splashing some kind of liquid on the heads of passersby is itchy, too.
Reply from the clinic

We apologize. The clinic would like to request additional details to investigate the branch staff. This is because the Siam branch does not have a window on the 2nd floor. We sincerely apologize.

KIDSADA MALAPEE via Google 5.0 out of 5
Convenient and fast, the doctor is easy to talk to.
Sukanya Bunart via Google 5.0 out of 5
The doctor gave excellent advice, and the staff at the counter were very friendly.
porntipjub via Google 5.0 out of 5
They offer comprehensive medical treatment. Located on the 2nd floor of the Lido Building, it's easy to find. The service is good, and the waiting time is short.
A-chitpol Sumbhao via Google 5.0 out of 5
The doctor and the staff at the counter provided good service.
Pornchanok Choochat via Google 5.0 out of 5
The staff at the clinic were very attentive, the doctor was kind, and the service was excellent in every way. ❤️❤️
mayjunggi via Google 5.0 out of 5
The doctor was very gentle and did a great job.
Pornthip Akkawibul via Google 5.0 out of 5
The dentist is meticulous, the clinic isn't pushy, and the teeth scaling wasn't very painful. The Siam branch is easy to find and convenient.
6401 techinee via Google 5.0 out of 5
The staff worked quickly, and the doctor was very kind.
bok ploy via Google 5.0 out of 5
I came here for a filling and wisdom tooth extraction. The staff at the clinic were very nice and gave great advice. The dentist explained everything throughout the treatment and was very gentle (the dentist was male). The clinic was clean. Overall, it was a great experience. 🫶🏻 …
ชลธิชา แหลมทราย via Google 5.0 out of 5
I had my dental work done at MOS Dental Clinic, Siam Lido branch. The dentist was very lovely and friendly, and had a very gentle touch. I was very impressed. The clinic was clean and well-organized. The dentist was very kind.
Pattamawan Chaijan via Google 5.0 out of 5
I had my dental work done with Dr. Jub. She's a great dentist and super lovely. All the staff are very friendly too! 💖 …
Puttachat Thonglim via Google 5.0 out of 5
At this branch, the staff provides excellent service. They are polite and courteous. The doctor in this branch explains things very well, making decisions about the procedure easy and trustworthy.
22 Arraya via Google 5.0 out of 5
I went to get my teeth done at MOS Dental Clinic, Siam Lido branch. The doctor was very friendly and kind. He had a very gentle touch. I was very impressed. The clinic looked clean and tidy. The doctor was very kind.
นนธวัฒน์ ยอดทอง via Google 5.0 out of 5
The doctor and staff are very attentive, provide good advice, and are very friendly.
Phatsara Songsri via Google 5.0 out of 5
The doctor was very kind and spoke very politely. My teeth moved into place very quickly.
Natthanicha Ketsawat via Google 5.0 out of 5
The service was excellent, and the doctor was very kind.
Kanrawee Jaritram via Google 5.0 out of 5
I came to this dental clinic. It's clean, the doctor speaks kindly, and the staff are very friendly.💗 …

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