The short answer
Whitening changes natural tooth colour; visible restorations can leave a shade mismatch. Tell the dentist about crowns, fillings or veneers before planning treatment so the whole smile can be assessed.

Look beyond one tooth
Point out restorations you can see when you smile and mention any recent dental work. Ask the dentist to describe what can change and what is likely to retain its current colour. Do not treat every material as natural enamel.
Separate whitening from replacement decisions
A possible colour difference does not automatically mean a restoration should be replaced. Ask about the condition of the existing work, your aesthetic priorities, alternatives and the cost and consequences of any replacement. Take time to decide what matters to you.
Prepare your consultation
Send a clear smile photo and explain your goal to Yonsei Severance Dental Clinic. Bring details of previous restorations if available. Photos support discussion; final decisions about materials, shade and treatment sequence require examination in Gongdeok.
Common questions
Should I book veneers before an examination?
Start by discussing your concern and alternatives.
Can I visit just to discuss colour?
Yes. Request an assessment without committing to a procedure first.
Sources & further reading
General information for planning a visit. Your diagnosis and treatment plan require an individual examination.
GONGDEOK · SEOUL
Plan your visit
Yonsei Severance Dental Clinic · Dr. Kang Jun-gu
156 Mapo-daero, Gongdeok Prugio City 2F 217–218
+82 2-3273-7528
