Whitening is one of the more affordable standalone treatments
A single professional whitening session, including a pre-treatment scale and polish, commonly costs in the range of roughly €130–170 in Istanbul — a modest cost relative to most other cosmetic treatments.
Why it's often included alongside other work rather than billed alone
If you're also getting veneers or crowns, whitening (on your remaining natural teeth) is usually done beforehand so the color of your new restorations can be matched to your brightened natural shade — not the other way around.
The tartar cleaning that's usually bundled in
A proper whitening session typically includes removing surface tartar and plaque first, since whitening gel works better and more evenly on clean enamel. This is normally part of the quoted price, not a separate line item.
Why results vary between patients
How much lighter your teeth get depends on your starting shade and the cause of any discoloration — some staining responds better to whitening than others. A dentist can give you a realistic expectation after looking at your teeth, rather than a guaranteed number of shades.
One session vs. multiple
Most patients see their full result from a single in-clinic session. A touch-up session, if wanted, is priced as a separate, smaller cost — but isn't necessary for everyone.
What to confirm before booking
Confirm whether the quoted price includes the pre-whitening cleaning, and ask what shade improvement is realistic for your specific starting point.