Ranked the best teeth whitening clinic in Bangkok by CleverThai, The Smile Bar owes its top spot to results, but also to one detail that sets it apart from every other whitening bar in the city: a licensed dentist is on site during all opening hours and supervises every whitening treatment. The Smile Bar operates under a dental clinic licensed by the Thai Ministry of Public Health, registered at the same Siam Square address.

Before any whitening session begins, every client receives a dental assessment performed by the dentist, who checks the teeth and gums and confirms the treatment is suitable. This matters: most whitening studios in Bangkok rely on technicians alone, with no dental professional involved.

The right package depends on your starting shade and the result you are aiming for, and this is exactly what the dentist’s pre-treatment assessment determines. The Single Whitening session (20 minutes) delivers a visible boost in one short visit. The Double and Triple sessions simply extend the whitening time in the same visit for a more pronounced result, the Triple being the most popular choice for first-time clients or those who want the strongest possible outcome. Whichever you book, you can upgrade on the spot after the assessment.

The Smile Bar uses the BrilliantSmile whitening system, a well-known name in the Swedish teeth whitening market. The hydrogen peroxide gel is pH-neutral and activated by a UV-free LED Plasma light, making it gentler than bleach-based treatments. Results range from 2 to 9 shades lighter after a single visit, and the clients we surveyed noticed immediate whitening of their organically-stained teeth, with no side effects beyond a mild tingling sensation that faded within 24 hours.

Clients who want a deeper clean can also book professional teeth cleaning and scaling, performed by the dentist in a private treatment room (from 950 THB), a convenient option before a whitening session.

The facilities are another highlight: individual pods equipped with UV-free LED lamps and an iPad to pass the time during treatment. With sessions from 2,399 THB and a location two minutes from BTS Siam, The Smile Bar remains the reference for teeth whitening in Bangkok, now with the reassurance of genuine dental supervision.

Bangkok Dental Spa is a full-range clinic offering a wide range of general dentistry and cosmetic dentistry services. It was established more than 13 years ago by Dr. Lily, a dentist with a wide range of certifications and training in Thailand, South Korea, Germany, and the USA.

It’s impressive that Bangkok Dental Spa has been featured in international media such as BBC, Arirang, The Australian, and Reader’s Digest, among others. Moreover, as we’ve seen from our surveys, this clinic is trusted by clients from all over the world.

As part of their Cosmetic Dentistry services, they use a Laser Teeth Whitening technology in their clinic. We like that the treatment time is short since each session approximately lasts 24 minutes to an hour. 

On the downside, their clients are recommended to refrain from eating food and beverages that can stain teeth for four days. Some examples are soy sauce, red wine, tea, coffee, soda, dark juices, etc.

Another plus point is their location since they are in the heart of Bangkok. Their building is not very busy, and there are ample parking spaces for all the tenants and their customers.

Overall, Bangkok Dental Spa is a good clinic for teeth whitening, not to mention that you will be in the hands of trained dentists during the treatment. Furthermore, the prices are also reasonable, since one teeth whitening session with cleaning costs 8,000 to 10,000 Baht.

Smile Signature Dental Clinic is another full-service facility that offers general dentistry, cosmetic dentistry, and even orthodontic treatments. Interestingly, this center has gained many awards, including the Global Patient’s Choice Winner as one of the Top 3 Dental Clinics in Thailand.

We are impressed that Smile Signature Dental Clinic has grown so much in the past 14 years. At present, they have a team of over 100 dentists in nine locations in Bangkok, plus an affiliate clinic in Phuket.

As for their teeth whitening services, they offer two options: in-office whitening and take-home dental bleaching. 

For their in-office whitening, Smile Signature Dental Clinic uses two of the most well-known systems, Zoom Tooth Whitening and Pola Tooth Whitening. Patients who choose the take-home option can choose from Opalescence and Philips Zoom.

We think it’s great that their clients have many options to choose from regarding teeth whitening options. While it can be confusing, you can rest easy because the dentists in the clinic will first assess your teeth to determine which system is best suited for you.

On the downside, the in-office whitening options at Smile Signature Dental Clinic can cost up to 12,000 Baht, while the home bleaching option is priced at 6,000 Baht. 

We have to mention, however, that they regularly hold promotions that can take up to 25 percent off the usual prices. We think that this is a great deal because it brings down the package price to the average prices for teeth whitening in the area.

An outstanding fact about Thantakit International Dental Center is its longevity. It’s impressive that this center has been around for more than seven decades since it was established in 1945.

It’s also interesting that even with their long history in the industry, they only opened three clinics in Bangkok to keep a close track of their high-quality service for their patients.

Notably, all branches of Thantakit International Dental Center are modern and comfortable. They offer an airy space with plenty of seating in their reception area and well-designed interiors.

We have noticed from our surveys that they have many clients who fly into Bangkok to avail themselves of their general and cosmetic dentistry services. Recently, they launched packages with their partner hotels for their international clients, which include COVID-19 testing and lodging fees.

As for their whitening services, they only use one teeth whitening system in place: the Zoom! Whitespeed Tooth Whitening System. This is the latest technology from Philips and is 33 percent faster with results in 45 minutes, as well as 67% less sensitivity for patients.

While a cleaning treatment is recommended before availing a Zoom! Whitening session, it is unclear whether they include that service in the package. 

On the downside, a single session of teeth whitening at Thantakit International Dental Center costs 12,000 Baht. While it may be more expensive than the usual rates, patients are sure that they are in good hands in this clinic, given their extensive experience and history.

For a bonus tip, patients should visit their social media pages and websites to keep track of their promos. There are times when they offer up to 20 percent discounts on their teeth whitening service.

What’s impressive about Bangkok Smile Dental is that their team was awarded by Philips as the No. 1 Clinic in Bangkok for performing the popular Philips Zoom! Whitening System from 2016 to 2018. They are also a leading clinic for dental implants in Thailand.

This clinic is highly known for providing services to foreigners and tourists in Thailand. Currently, they have four locations in Bangkok and two in Phuket, all of which have in-house dental labs for the convenience of their patients.

We like their clean and modern facilities that make the waiting time more comfortable. Additionally, their reception staff are English-speaking and can accommodate foreign clients very well.

Bangkok Smile Dental offers two in-clinic teeth whitening systems, Zoom and Truly Laser, and one home bleaching package. They are equipped with the latest technologies in teeth whitening, enabling patients to see visible results after the treatment.

Their available teeth whitening packages and their respective costs are the following:

• Zoom! Teeth Whitening, 12,000 THB
• Truly Laser Teeth Whitening, 10,000 THB
• Truly Laser Teeth Whitening and Home Bleaching, 11,000 THB
• Home Bleaching (6 syringes), 5,000 THB
• Home Bleaching (3 syringes), 3,500 THB

We think that their prices are quite expensive, given that their target clients are foreigners. Nonetheless, the patients we surveyed mainly expressed their satisfaction with the results of their treatment at Bangkok Smile Dental.