Dra. Cléo Salustiano In this article
SummaryWhat goes into the cost of whitening?Why don't drugstore kits belong in the same comparison?FAQRead nextHow much does teeth whitening cost? What determines the price
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Quick summary of this article+
This article doesn't list prices: Brazil's Dental Code of Ethics doesn't allow prices to be advertised. What determines the cost of whitening: the prior assessment (the type of stain changes everything, and cavities or inflamed gums must be treated first), the recommended technique (in-office, supervised at-home with custom trays, or combined), the number of sessions set by the starting shade, sensitivity management, the possible need to redo fillings and veneers that don't whiten along with the teeth, and maintenance touch-ups. Drugstore kits aren't part of the same comparison: limited concentration, generic trays and no assessment. When comparing plans, look at what's included. In Mooca, with Dr. Cléo Salustiano (CRO-SP 170844).
Whitening is the cosmetic treatment with the widest gap between options: it ranges from drugstore strips to supervised in-office protocols, and calling all of it 'whitening' muddles the comparison. You won't find prices here: Brazil's Dental Code of Ethics doesn't allow dental offices to advertise prices, and a number given before an exam would ignore exactly what defines the treatment.
What can be explained is what goes into the figure: the assessment that comes before everything, the recommended technique, the concentration and number of sessions, maintenance touch-ups and what may need to be redone afterward, such as fillings and veneers that don't whiten along with the tooth.
In this article, Dr. Cléo Salustiano (CRO-SP 170844) explains each of these factors and why over-the-counter products don't belong in the same conversation.
This article comes from Dr. Cléo Salustiano's dental office in Mooca, São Paulo (care in English, Portuguese and Spanish). See the teeth whitening page to learn how the treatment is done here and book your assessment.
What goes into the cost of whitening?
It starts with the assessment. Before whitening, you need to know why the tooth is dark. External stains from coffee and wine, internal discoloration, a tooth darkened after a root canal and developmental stains respond differently, and not all of them respond to whitening. Cavities, leaking fillings and inflamed gums need to be addressed first, because gel in contact with compromised tissue causes sensitivity and treats nothing.
Next comes the technique. In-office whitening uses higher concentrations, applied in supervised sessions, with the gums protected. Supervised at-home whitening uses custom trays made from an impression or scan of your teeth, with a lower-concentration gel used at home for a set period. There are also combined protocols. Each path has its own supplies, chair time and number of visits.
The number of sessions is set by your starting shade and the type of stain, not chosen at the counter. Grayish teeth and internal stains usually take more time and respond more slowly than the common yellowing that comes with age.
The trays, when the technique is supervised at-home whitening, are custom-made. They exist so the gel stays where it should and doesn't seep onto the gums. That's the key difference from a strip or a generic tray.
Managing sensitivity is also part of it: desensitizers applied in the office, adjusting the interval between sessions, guidance on a specific toothpaste. It's part of the protocol, not an add-on.
There's one item almost no one considers at the start: fillings, veneers and crowns don't whiten. If the teeth around old dental work get lighter, that work may need to be redone after whitening to match the color. This should be discussed from the planning stage, not discovered at the end.
And there's upkeep. The shade you achieve is maintained with periodic touch-ups, and how often depends a lot on habits: coffee, tea, wine, dark sodas and smoking speed up the return of staining. The cost of whitening is the cost of the result over time, not of a single session.
| Item | Why it matters in the plan |
|---|---|
| Prior assessment | Defines the type of stain and what needs to be treated first; without it there's no safe recommendation |
| Recommended technique | In-office, supervised at-home or combined involve different supplies and numbers of visits |
| Number of sessions | Set by the starting shade and type of stain, not chosen in advance |
| Custom trays | Made for your arch, in the supervised at-home technique |
| Sensitivity management | Desensitizers and adjusted intervals are part of the protocol |
| Work to redo | Fillings, veneers and crowns don't whiten and may need to be redone to match the color |
| Maintenance touch-ups | Keep the shade over time; how often depends on habits like coffee, wine and smoking |
Why don't drugstore kits belong in the same comparison?
Because they answer a different question. Products sold without a prescription have limited concentration, a generic tray or adhesive strip and no prior assessment. They work best on surface stains and tend to disappoint with internal discoloration, which is exactly what motivates most people to look for whitening.
Without an exam, you also don't know what's being whitened. Using gel over cavities, leaking fillings or inflamed gums is the classic recipe for intense sensitivity and an uneven result that later needs correcting.
A tray that doesn't fit your arch lets gel seep onto the gums. That doesn't whiten faster; it irritates the tissue and is often why people give up on treatment halfway.
There's also the risk of expecting the wrong result. Someone with old dental work on their front teeth may whiten the teeth around it and end up with a more noticeable contrast than before.
Comparing whitening plans, then, means comparing what's included: how many sessions, which technique, whether the trays are included, whether touch-ups are planned, whether the prior assessment and sensitivity management are part of it. Two plans with the same total can contain very different things.
It's also worth asking what happens afterward: how often touch-ups are needed, what to do if the color doesn't respond as expected and whether fillings will likely need to be redone to match the shade.
The price is only presented after the assessment because the exam is what defines the technique, the number of sessions and what needs to be done first. Before that, any number is an average of cases that aren't yours.
How much does teeth whitening cost?
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Prices can't be shared here: Brazil's Dental Code of Ethics doesn't allow dental offices to advertise prices. What determines the cost is the recommended technique, the number of sessions, the prior assessment, sensitivity management and maintenance touch-ups.
Why do whitening plans vary so much?
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Because 'whitening' covers very different paths (in-office, supervised at-home with custom trays, or combined) and because the number of sessions depends on each person's type of stain and starting shade.
In-office or at-home whitening: which costs less?
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Prices aren't discussed here. They're different protocols: in-office uses higher concentrations in supervised sessions; at-home uses custom trays and a lower-concentration gel for a set period. The recommendation depends on your case.
Why do I need an assessment before whitening?
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Because it identifies the type of stain and whether there are cavities, leaking fillings or inflamed gums. Gel on compromised tissue causes sensitivity and treats nothing.
Is the number of sessions fixed?
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No. It's set by your starting shade and the type of stain. Grayish teeth and internal stains usually respond more slowly than the common yellowing that comes with age.
Are the trays included in the plan?
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When the technique is supervised at-home whitening, the custom trays are part of the treatment. It's worth confirming this when comparing proposals.
Is a drugstore kit a cheaper alternative?
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It answers a different question. It has limited concentration, a generic tray or strip and no prior assessment. It works best on surface stains and tends to disappoint with internal discoloration.
Will my fillings and veneers whiten too?
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No. Composite fillings, veneers and crowns don't respond to whitening gel. If the teeth around them get lighter, they may need to be redone to match the color. This should be part of the plan from the start.
Is sensitivity treatment charged separately?
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Sensitivity management (desensitizers, adjusting intervals between sessions, guidance on a specific toothpaste) is part of the protocol. It's worth confirming how it's covered in the plan.
Will I need to repeat whitening?
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The shade is maintained with periodic touch-ups, and how often depends a lot on habits: coffee, tea, wine, dark sodas and smoking speed up the return of staining.
What should I ask when I receive a whitening plan?
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How many sessions, which technique, whether trays are included, whether the prior assessment and sensitivity management are part of it, whether touch-ups are planned and whether any fillings will need to be redone afterward.
What if the color doesn't respond the way I expected?
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Some types of stains respond little to whitening, and that should be said during the assessment, not discovered at the end. In those cases there are other approaches, discussed in the treatment plan.
Does a tooth darkened by a root canal whiten the same way?
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No. It usually needs a specific approach, done from inside the tooth, different from whitening the outer surfaces. The recommendation depends on the exam.
Where can I get a whitening assessment in Mooca?
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Dr. Cléo Salustiano (CRO-SP 170844) sees patients at Rua Hipódromo, 1141, in Mooca, São Paulo, Monday to Sunday, 8 a.m. to 10 p.m., in Portuguese, English and Spanish. The assessment defines the type of stain, the technique and the number of sessions, and the plan is presented before any decision.
