Teeth can lose their color over time due to consumed foods, beverages, smoking, and age-related factors. Teeth whitening consists of professional or at-home applications aimed at reducing these discolorations and achieving a more aesthetic smile. Today’s methods include professional whitening performed by a dentist in a clinical setting, dentist-supervised at-home tray treatments, and whitening kits sold on the market.
While professional methods provide faster and more effective results, at-home options generally take longer to show an effect. However, the most important point is that teeth whitening procedures must be planned after a dentist’s evaluation. This is because the appropriate method may vary for each patient; for example, individuals with cavities, gum disease, or excessive sensitivity should first have these conditions treated.
How Is Teeth Whitening Performed in a Clinical Setting?
Teeth whitening performed in a clinical setting is a method that ensures fast and safe results. Before the procedure, the teeth are professionally cleaned, and plaque or tartar on the surface is removed. Then, a special barrier is applied to protect the gums, and a hydrogen peroxide or carbamide peroxide-based whitening gel is applied to the teeth.
This gel is usually activated with a special light source or laser. The purpose of the light or laser is to accelerate the whitening process and increase its effectiveness. The application takes approximately 30–60 minutes, and most patients achieve visibly whiter teeth in a single session. In some cases, more than one session may be required to reach the desired result.
Since professional whitening is performed under dentist supervision, the risk of damage to teeth and gums is minimized. Therefore, it is the most ideal method especially for those who want fast results or have intense discoloration.
Are At-Home Teeth Whitening Kits Safe?
Whitening kits sold on the market are available in different forms such as toothpastes, strips, gels, or LED light devices. These products contain low concentrations of whitening agents. When used correctly, they may provide mild color lightening. However, uncontrolled or excessive use may cause side effects such as enamel erosion, gum irritation, and temporary sensitivity.
The main limitation of at-home kits is their limited effectiveness and the fact that they do not produce the same results for everyone. In addition, if there are cavities, cracks, or fillings in the teeth, the product contents may pass through these areas and cause more severe sensitivity. Therefore, at-home kits should never be used without consulting a dentist. The safest approach is the use of custom-made transparent trays and appropriate whitening gels prepared under dentist supervision.
Is Teeth Whitening a Permanent Solution?
Teeth whitening is not a permanent solution. The duration of the achieved whiteness varies depending on the person’s oral hygiene habits, diet, and lifestyle. In individuals with habits that stain teeth, such as coffee, tea, red wine, and smoking, the whiteness may fade more quickly.
Generally, the results of clinical whitening can be maintained for 1 to 3 years. However, extending this period depends on the individual. Regular tooth brushing, flossing, professional tartar removal, and avoiding staining habits help maintain whiteness for a longer time. When deemed necessary, short reinforcement sessions can be performed at certain intervals under dentist supervision.
What Should Be Considered After Teeth Whitening?
After whitening, teeth remain sensitive for a period and are more prone to staining. Therefore, during the first 72 hours, foods and beverages with high staining potential should be avoided. Coffee, tea, acidic drinks, red wine, and smoking are among the most important factors to avoid during this period.
In addition, extremely hot or cold foods should be avoided, and if sensitivity persists, special toothpastes recommended by the dentist should be used. Regular oral hygiene is the most important factor in maintaining the whitening effect. Routine dental check-ups are of great importance both for preserving whiteness and for early detection of possible side effects.