Are you thinking about whitening your teeth? Before you start, there are several aspects worth knowing. From sensitivity to the duration of the result, including fillings, veneers, or the so-called “white diet,” many questions arise before beginning a treatment.
The Dr. Clara Roc, dentist and director of the Whitening Department at CIRO Clinic, answers the most common questions and highlights one of the most frequent mistakes: believing that using more product, a higher concentration, or prolonging the treatment will continually yield whiter teeth.
“Each tooth has a limit,” she explains. And surpassing it does not necessarily mean you’ll obtain a more beautiful smile.
The mistake when whitening teeth that can increase sensitivity
One of the most frequent side effects of dental whitening is sensitivity. However, the specialist differentiates between discomfort that may appear during the treatment and habitual dental sensitivity.
“That teeth routinely bother you with cold, heat, or certain foods isn’t something we should simply assume as normal,” explains Dr. Roc.
Therefore, before starting whitening, she considers it essential to review the mouth’s condition and check for cavities, cracks, wear, receding gums, or gum problems.
When a patient experiences sensitivity, the treatment can be adapted. Concentrations, times, and frequency of application can be adjusted, in addition to using products specifically designed to control sensitivity and promote enamel remineralization.
The specialist emphasizes that a correctly indicated, planned, and professionally supervised whitening should not damage the enamel.
The problem can arise when products are used without supervision, with inappropriate concentrations, or when treatments are prolonged under the belief that “the more, the better.”
And every smile responds differently.
Genetics, age, the type of stain, enamel thickness and translucency, or dentin characteristics influence the final result.
Therefore, not all teeth can reach the same shade.
Whitening at home or in clinic? This is the key to achieving a good result
One of the big questions before starting is where to perform the treatment. For Dr. Clara Roc, in many cases the best option is to combine at-home whitening supervised by the dentist with in-clinic sessions.
At-home whitening allows observing over several weeks how each patient responds. During that time, it’s possible to determine which products are better tolerated, which concentration works in their case, whether sensitivity appears, and how the color of different teeth evolves.
“I like to think of whitening as a process, not as a single session,” she explains.
This progression enables tailoring the subsequent in-clinic treatment based on each patient’s real response.
According to the specialist, performing only one session in a clinic means having less information about how the teeth reacted previously.
Moreover, the color achieved does not disappear suddenly, nor is there a specific date on which whitening “expires.”
Over time, teeth may lose part of the color achieved, but a person’s habits play a large role.
For this reason, Dr. Roc usually performs annual maintenance check-ups, though that does not mean every patient needs to whiten their teeth every year.
Some maintain the color achieved and only require a check-up, while others may need a small boost.
Do you need to follow a “white diet”?
For years, the notion that anyone undergoing whitening should avoid nearly all pigmented foods and drinks has spread. However, the specialist believes it’s not necessary to go to such an extreme.
She does recommend moderating substances with high pigmenting capacity, such as coffee, tea, red wine, or tobacco, in addition to maintaining good dental hygiene.
The goal, she explains, is for the treatment to fit reasonably into the patient’s daily life.
One of the issues that can go unnoticed before whitening is that dental restorations do not change color.
The treatment acts on the natural tooth, but does not modify the shade of materials used in fillings, crowns, or veneers.
This can lead to a color difference. For example, a filling that previously matched the tooth color exactly may begin to look darker after whitening.
For this reason, prior planning is especially important when the patient also plans an aesthetic treatment.
If someone wants to whiten their teeth and later place veneers, crowns, or undertake anterior reconstructions, the specialist explains that whitening is usually done first, the color is allowed to stabilize, and then the final shade of the restorations is selected.
Before starting, it is necessary to ensure that both the teeth and the gums are in good condition.
You also need to assess whether there are caries, cracks, wear, recession, prior sensitivity, or restorations that may influence the treatment.
In addition, not all color changes have the same origin or respond to whitening in the same way.
Technology can help to better understand the starting point. In the specialist’s clinic, tools such as spectrophotometers are used to objectively analyze different parameters of dental color and its brightness.
Even so, Dr. Roc reminds us that teeth are biological tissues and that each person responds differently. Therefore, even if an estimate can be made, it’s not possible to guarantee an exact color before starting.
“A beautiful smile is not necessarily the whitest”
For the specialist, one of the main mistakes is thinking that more product, higher concentration, or longer duration equals whiter teeth.
“Each tooth has a limit,” she notes. Once the maximum whitening potential is reached, continuing to press does not necessarily yield a better result and may increase sensitivity or create unnecessary problems.
The goal should not be to achieve an extremely white smile at any cost.
“A beautiful smile is not necessarily the whitest,” explains Dr. Roc. For her, the best result is a smile that is brighter, more attractive, and natural, while always safeguarding tooth health.
In short, before pursuing the whitest shade, the key is to know the starting point of each smile, tailor the treatment, and understand that more whiteness does not always mean a better result.
