TEETH WHITENING
Teeth Whitening
TEETH WHITENING
What is teeth whitening?
A treatment in which a whitening agent breaks down the staining accumulated on and within the tooth surface, producing a shade lighter than the original. We check the condition of the gums and teeth before proceeding.
- Surface stainingFood, drinks and smoking stain the tooth surface.
- Internal changeThe dentine colour deepens with age.
- Breaking down pigmentsA peroxide-based whitening agent breaks down the pigments. It lightens the colour alone, without trimming or covering the tooth.
Tooth colour darkens through a combination of surface staining and internal change.

COMPARE
In-office whitening and at-home whitening
MEGAPLANT Dental Clinic Seodaemun plans the two methods either on their own or in combination, according to the cause of the staining and the condition of the teeth.
At-home whitening
- WhereWorn at home over a set period
- ConcentrationLower concentration
- MethodWhitening agent placed in a custom-fitted tray
- CharacterTakes longer but lightens gradually
In-office whitening
- WhereAt the clinic
- ConcentrationComparatively higher concentration
- MethodGums protected, then the agent is applied and managed
- CharacterThe clinical team monitors it and can address sensitivity or gum irritation immediately
※ At-home whitening is also used to maintain results after in-office whitening.
CHECK
What we check before the procedure
The same effect does not appear with every type of discolouration. Staining from coffee, tea and tobacco tends to respond comparatively well.
We check first
- Whether there is decay, a cracked tooth or an exposed tooth root
- Whether there is gum inflammation or tartar (if so, treatment and scaling come first)
- Whether there is resin or a crown on the front teeth (restorations do not whiten)
- Whether you usually experience marked sensitivity
When whitening alone may not be enough
- After root canal treatmentA single tooth has darkened following root canal treatment
- Drug-induced or congenitalThere is banded discolouration from medication or congenital causes
※ The response to whitening may be limited here, so we also review covering the colour with aesthetic resin or a no-prep veneer. Identifying the cause first is the way to reduce unnecessary procedures.
PROCESS
Treatment process
We record the current tooth shade and confirm whether whitening is possible.
A protective barrier is applied so the whitening agent does not contact the gums.
The whitening agent is applied to the tooth surface and left to act for a set time.
We check the change in shade and, if needed, plan additional sessions or at-home whitening.
CARE
Sensitivity and precautions
Points to know before and after the procedure
- Temporary sensitivity may occur during or immediately after whitening. In most cases it subsides over time, and if it is marked we adjust the concentration and duration of the whitening agent.
- For a few days after the procedure, it is advisable to avoid strongly coloured foods such as coffee, tea, wine and kimchi stew, as well as smoking.
- The whitening effect is not permanent and may gradually revert depending on dietary habits, so maintenance care is required.
- If you are pregnant or breastfeeding, or have a dental or gum condition, we adjust the timing of the procedure.
Teeth Whitening Consultation
We identify the cause of the staining and explain the change that can be expected, along with a suitable method and number of sessions.
Request a Consultation 02-6423-2875FAQ
Frequently Asked Questions
- 착색 원인과 치아 상태에 따라 결과가 다릅니다. 시술 전 현재 색을 기록하고 기대할 수 있는 변화를 미리 설명드리며, 특정 결과를 보장하지는 않습니다.
- 미백제는 자연치아에만 작용하고 보철물의 색은 바뀌지 않습니다. 앞니에 보철이 있다면 미백 후 색 차이가 생길 수 있어 미리 계획이 필요합니다.
- 미백 중 일시적인 시림이 생길 수 있으며 대부분 시간이 지나며 가라앉습니다. 심하면 미백제 농도나 시간을 조정하고, 필요 시 시림 완화 처치를 함께 합니다.
- 영구적이지 않으며 식습관과 흡연 여부에 따라 서서히 되돌아갈 수 있습니다. 자가 미백이나 정기적인 관리로 유지하는 방법을 안내드립니다.
- 치석과 잇몸 염증이 있으면 미백제가 고르게 작용하기 어렵고 자극이 커질 수 있어, 필요한 경우 스케일링과 잇몸 치료를 먼저 진행합니다.


