Teeth Whitening is one of the fastest ways to boost your smile confidence, ideal for professionals who use their smile to talk with others regularly. This article covers everything you need to know before deciding — price, process, and precautions — from Panda Dental Clinic.
What Is Teeth Whitening?
Teeth whitening uses whitening agents, such as hydrogen peroxide or carbamide peroxide, applied to the outer tooth surface to break down color buildup on and within the tooth. Some cases use light to speed up the agent’s action. It’s a safe dental method that doesn’t damage tooth structure.
What Causes Teeth to Change Color?
- External causes, like staining from food, tea, coffee, colored drinks, or smoking
- Internal causes, like pigment buildup in the tooth from when it was forming, or a non-vital tooth after root canal treatment

Teeth Whitening Price at Panda Dental Clinic
Size | Sessions | Duration | Price |
|---|---|---|---|
S | 1 session | 15 minutes | 2,490 baht |
M | 2 sessions | 45 minutes | 3,490 baht |
L | 3 sessions | 1 hour | 4,490 baht |
Your dentist will assess and recommend the right size based on your tooth color after an oral exam.
Who’s Suitable, and Who Should Be Careful
Suitable for
- Those with yellowing from food, drink, or smoking stains
- Professionals who use their smile to talk or meet with others regularly
- Those lacking confidence in their smile
Should be careful, or consult a dentist first
- Pregnant women, or those being treated for a condition requiring light caution, such as certain cancers
- Those currently in braces — must wait until braces are removed before whitening, since the gel would only reach exposed tooth surface, causing uneven color
- Teeth with crowns or veneers — whitening gel won’t work on these materials, so their color won’t change
Get Scaling Before Teeth Whitening
Scaling before whitening is always recommended, because tartar and plaque buildup on the tooth surface prevents the whitening gel from fully reaching it, leading to uneven results. Your dentist will assess and recommend scaling first if needed.
Teeth Whitening Steps
- Oral health check and tooth-color assessment
- Scaling first (if needed)
- Dentist recommends the right size (S/M/L)
- Protect gums and lips before applying
- Apply whitening gel and activate with light, for the chosen number of sessions
- Clean up and check results
Does Teeth Whitening Hurt?
Generally not, but you may feel temporary sensitivity during or after whitening, especially in older patients whose enamel has thinned. Sensitivity usually improves on its own within a few days. If you feel unusually uncomfortable, tell your dentist right away.
How Long Do Teeth Whitening Results Last?
Results last about 6 months to 2 years, depending on your habits afterward, like drinking tea, coffee, or smoking. The better you care for your teeth, the longer results last.
How to Care for Yourself After Teeth Whitening
- Avoid dark-colored food and drinks, like tea, coffee, red wine, dark sauces, for the first 24–48 hours
- Avoid smoking right after whitening
- Brush and floss regularly to keep results lasting longer
- Get scaling every 6 months to prevent new buildup
Other Options If Teeth Whitening Doesn’t Fit
If tooth discoloration is from an existing crown, or you want more permanent results than whitening offers, veneers or fixed crowns may be worth considering — they can address both color and shape together. Consult your dentist to choose the method that suits your case.
Summary
Teeth whitening is a fast way to boost your smile confidence at an accessible price. At Panda Dental Clinic Udon Thani and Nong Bua Lamphu, starting at 2,490 baht, with free consultation and assessment before you decide, or see all our dental services.


