What are the limitations of teeth whitening?

Author: Burnice Osinski IV  |  Last update: Saturday, November 15, 2025

One of the most common side effects is tooth sensitivity, which can occur during or after treatment. Overuse or misuse of teeth whitening products can also lead to enamel damage, gum irritation, and discoloration. Additionally, some types of tooth discoloration may not respond well to teeth whitening treatments.

What are the drawbacks of teeth whitening?

What are the risks of teeth whitening? No matter what treatment you use, there's a chance your gums will be sensitive to the chemicals used in teeth whitening, particularly if you already have sensitive teeth. There's also a chance of burns to gums and some of the whitening kits used at home can harm tooth enamel.

Is there a limit to teeth whitening?

While there is no one-size-fits-all answer to how many times you can get your teeth professionally whitened, a general rule of thumb is to limit the procedure to once or twice a year. Overdoing it can lead to increased tooth sensitivity and potential damage to the enamel.

What would make you ineligible for teeth whitening?

If you have a lot of fillings, dental bonding or crowns, you may not be a candidate for dental whitening. This is because restorations will not respond to whitening, and a whitening treatment could result in a very uneven appearance.

What are the restrictions after teeth whitening?

For 48 hours after professional teeth whitening, it's recommended that you avoid acidic, pigmented foods and beverages and stick to things that won't cause discoloration. This is commonly called the “White Diet”, a short-term diet consisting of white and light-colored foods and drinks.

Teeth Whitening SIDE EFFECTS

How long does it take for teeth to heal after whitening?

How long does it take for teeth to heal after whitening? Typically, it takes 48-72 hours for teeth to heal properly after whitening. During this time, maintaining proper dental care and adopting healthy oral habits is essential.

What should you not do after whitening?

Tips to Keep Teeth White After Treatment
  1. Avoid Coffee and Tea. Starting your morning with coffee or tea is essential for your day. ...
  2. Avoid Dark Sauces. Sauces are good during meals. ...
  3. Avoid Dark Chocolate. ...
  4. Avoid Acidic Foods. ...
  5. Avoid Sour Fruit Juice. ...
  6. Use Straws. ...
  7. Floss Your Mouth. ...
  8. Brush Your Teeth.

Who is not eligible for teeth whitening?

People with gum disease, tooth decay, cavities, or exposed roots should not get teeth whitening. Whitening agents can cause irritation and exacerbate existing dental issues. It's crucial to address these dental health problems first before considering any cosmetic treatments.

Who is not a candidate for teeth whitening?

Brown or gray teeth, or teeth striped or mottled from tetracycline or too much fluoride, may not whiten evenly when bleached. People with periodontal disease or particularly sensitive teeth may want to avoid chemical whitening techniques that can irritate tender gums.

Who cannot do teeth whitening?

People who have restorations such as fillings, implants, crowns and dental bridges. Children under 16 years of age. Patients with periodontal disease, tooth decay, cavities and exposed roots. People who are allergic to teeth bleaching whitening agents like peroxide.

What type of teeth Cannot be whitened?

Teeth that have yellowed with age

As we age, the enamel becomes thinner due to wear and tear, revealing the underlying layer of tooth structure called dentin. Dentin is naturally yellowish and cannot be lightened with teeth whitening products.

How often is it OK to whiten teeth?

Whether you're using commercial whitening strips or an at-home kit from your dentist, most dental professionals recommend touching up every 3-4 months or after every time you have your teeth cleaned. Typically, you only have to wear the kit 3-4 times to “boost” your smile back to its whiter color.

How many days in a row can I whiten my teeth?

Options for Bleaching Teeth at Home

Strips and gels for teeth whitening. These peroxide-based tooth whitening preparations often need to be used once or twice daily for 10 to 14 days, straight to the teeth with a brush or thin strip. Results last four months or longer and might cost between $10 and $55.

Is it worth having your teeth whitened?

Because when a qualified and experienced dentist oversees it, teeth whitening is a perfectly safe procedure. Moreover, it produces brilliant results that can transform your smile and let your personality shine through. Safety and satisfaction are worth paying a little extra for, don't you think?

Can yellow teeth become white again?

Yellow teeth can regain whiteness through various methods, including good oral hygiene, professional dental cleanings, and teeth-whitening treatments. Stains from coffee, tea, or tobacco can be removed with adequate oral care, while professional procedures like bleaching or laser treatments offer quicker results.

Why do dentists not recommend teeth whitening?

If used over time and without the aid of a professional cosmetic dentist, this treatment could cause tooth sensitivity and at times pain. The worst part for these patients is that by affecting the enamel and causing teeth to become more sensitive overall, the teeth are then primed to become even more stained over time!

What disqualifies you from teeth whitening?

People with healthy teeth and gums are typically good candidates for teeth whitening. Gum disease, multiple restorations, and extensive decay disqualify individuals from this cosmetic procedure.

What do dentists say about teeth whitening?

Whitening treatments can be effective on both extrinsic and intrinsic staining. Only natural teeth can be whitened, not tooth-colored restorations. Whitening treatments include in-office bleaching procedures, dentist-supplied products for use at home, and over-the-counter (OTC) whiteners.

Who is a bad candidate for teeth whitening?

Whitening is not recommended for people who experience chronic sensitivity, periodontal disease, oral cancer, or excessively worn and damaged enamel. Teeth that appear translucent may worsen with each whitening application and should be discontinued upon notice.

When can teeth not be whitened?

In the case of an allergy to peroxide, do not use whitening products, as peroxide is often the whitening agent. Dental restorations—which include (but are not limited to) crowns, veneers, and bridges—do not respond to whitening products. If you whiten with restorations, the results will be uneven.

Is professional teeth whitening worth it?

Professional teeth whitening is worth the investment if you are looking for better results. This is because professional teeth whitening treatments use more bleaching agents than over-the-counter products. This means that the results will be much more noticeable and long-lasting.

Why are my teeth turning brown after whitening?

If teeth are overexposed to the hydrogen peroxide agent in whitening gel, the outer layers of enamel may begin to wear away, exposing the dentin and soft inner tissues. This results in lasting sensitivity and discoloration, as dentin is a naturally darker color than enamel.

Can old yellow teeth be whitened?

Seniors can whiten their teeth gradually with a professional take-home kit. The kits include custom-fitted trays that you wear with a bleaching gel for several weeks, either twice a day for thirty minutes or overnight.

Is teeth whitening bad for your teeth?

However, teeth whitening treatments can cause damage to the enamel if not done correctly or overused. Enamel damage can lead to increased sensitivity, pain, and white spots on your teeth. It's essential to consult with a dentist before using any teeth whitening products to ensure they're safe for your teeth.

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