Teeth Whitening Risks

Teeth whitening is generally considered safe when performed by a trained professional or using over-the-counter products as directed. However, like any cosmetic procedure, there are potential risks and side effects associated with teeth whitening. It’s essential to be aware of these risks before deciding to undergo teeth whitening treatment.


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Here are some potential risks:

Tooth Sensitivity: One of the most common side effects of teeth whitening is increased tooth sensitivity. This can occur during and after the treatment. Sensitivity is usually temporary, but it can be uncomfortable for some individuals.

Gum Irritation: Whitening agents can irritate the gums, leading to temporary inflammation or discomfort. This is more common with over-the-counter products or improperly applied professional treatments.

Uneven Whitening: Some teeth may respond differently to whitening agents, resulting in uneven whitening. This can be more noticeable if you have dental restorations, such as crowns or fillings, which don’t whiten like natural teeth.

Overuse Issues: Excessive or prolonged use of teeth whitening products, especially those with higher concentrations of bleaching agents, can lead to enamel erosion and damage to the tooth structure.

Allergic Reactions: Some individuals may be allergic to the ingredients in teeth whitening products. Allergic reactions are rare but can include gum swelling, itching, or redness.

Temporary Discomfort: During or after the whitening process, some people may experience temporary discomfort or a burning sensation in the gums or teeth.

Colour Rebound: After the whitening treatment, teeth may experience a “color rebound” effect, where they gradually return to their original shade over time, especially if proper maintenance and oral care are not followed.

Pre-existing Dental Issues: Teeth whitening may exacerbate existing dental issues, such as cavities or cracks, as the bleaching agents can penetrate these areas.

Following proper aftercare instructions and maintaining good oral hygiene practices can help minimize potential risks associated with teeth whitening.


As each individual is different occasionally minor sensitivities may arise from a teeth whitening treatment.  


It is important during the treatment the gel doesn’t get on the soft tissue of the lips and gums. If this does occur remove with a cotton tip prior to using the led lamp.  Ensure the cheek retractor is large enough to keep the lips from touching the teeth.  

It is essential to make sure the client is fully reclined during the treatment.  This prevents the saliva from making contact with the gel and washing it onto the soft tissue of the mouth causing sensitivity and reducing the results.

Rinse thoroughly between and after the treatment to remove all remaining gel as left over gel can cause irritation to the soft tissue especially.  


Blisters from teeth whitening are extremely rare and can be a result of lesions.  Possible causes can be lesions in the mouth prior to the treatment or a secondary reaction from hot food and liquids, spicy foods and smoking soon after the treatment.  These should be avoided for at least 24 hours after the process.  

Injectables such as lip filler prior to or shortly after the treatment can cause swelling and blisters.  

Blisters and swelling are generally minor and resolve within a few days.  It is best to consult your doctor or pharmacist for treatment is this does occur.


As people age their skin becomes thinner.  The cheek retractor stretches the skin during the process which with aging, delicate or sensitive skin can cause cracks in the skin which may not be visible to the eye.  If the peroxide gets in to these fine tears it may cause irritation. We recommend the use of the non peroxide treatment for older people or people with sensitive skin, teeth or gums as it causes less sensitivity and less discomfort during the treatment.

Anyone who has gum disease or any outstanding dental or oral condition should not have a teeth whitening treatment.


The use of photosensitive drugs or topical skin treatments typically used for acne can cause a reaction to the LED light resulting in conditions like hyper pigmentation.  Consult your doctor prior to having a treatment.


People who suffer cold sores occasionally have experienced an occurrence after a teeth whitening treatment.  This is possibly from the exposure to the light just as sunlight can bring on cold sores.

Teeth whitening treatments are considered to be safe when procedures are followed as directed. However, there are certain risks associated with whitening that you should be aware of:

Although rare with our gentle gel, teeth whitening can cause a temporary increase in sensitivity to temperature, pressure and touch.  In extreme cases some individuals may experience spontaneous shooting pains.  Individuals at greatest risk for whitening sensitivity are those with gum recession, significant cracks in their teeth or leakage resulting from faulty restorations.  If this occurs discontinue immediately and ask your client to rinse and make an appointment with their dentist. 

Whitening sensitivity usually lasts no longer than a day or two, but in some cases may persist a little longer. We recommend toothpaste for sensitive teeth to reduce sensitivity.

If you have a client with any severe allergies like anaphylaxis is best to avoid the treatment as there is no guarantee the products it is made from have not come in contact with or been produced alongside other products.  It’s just not worth the risk.

If you have a client with diabetes it is important they maintain their blood sugar during the teeth whitening treatment.

Gum Irritation: 
Clients occasionally experience some degree of gum irritation usually from applying the gel onto the gum tissue. Such irritation typically lasts from a few minutes after treatment up to several days.  The use of the vitamin e swab is very successful in eliminating gum sensitivity.

Technicolour Teeth: 
Restorations such as bonding, dental crowns or porcelain veneers are not affected by bleach and therefore maintain their default colour while the surrounding teeth are whitened. This results in what is frequently called “technicolour teeth”.  If the default colour of these restorations is lighter than the natural teeth, the whitening treatment can still be used. We recommend that the client’s teeth be colour checked after the first 20 minute session in these cases, as it may be all that is required to match the restorations.

Blisters on the inside of the mouth:
Blisters generally only happen when the gel comes in contact with the soft tissue whilst under the lamp or is left after the treatment.  There is a link between mouth blisters and lips with filler.  If your client has lip filler make sure they are extra careful in applying the gel.

It is important when the client applies the gel they avoid the lips and gums, ensure it does not come in contact with the soft tissue of their mouth. If they do get some on there have them remove it with a cotton tip.  Also ensure the cheek retractor being used is large enough to keep the lips from touching the teeth.  We always give you a couple of free large with your order.  Always make sure the client is fully reclined.  If they are not fully reclined they can drool and this can wash the gel onto the soft tissue.  Also make sure the client rinses thoroughly and brushes away any remaining gel with a tooth brush to ensure no gel is left in the mouth.  Get the client to apply the vitamin e at the end of the treatment to their lips gums and the inside of their lips this should help.  Blisters will generally heal within 2-3 days.


Pregnant or lactating women are advised to avoid teeth whitening. The potential impact of swallowed bleach on the foetus or baby is not yet known.  We also recommend the treatment for persons over the age of 16.

Individuals with highly sensitive teeth, or those who are in need of dental work should consult their dentist before having a whitening procedure.

If you have a client with any severe allergies like anaphylaxis is best to avoid the treatment as there is no guarantee the products it is made from have not come in contact with or been produced alongside other products.  It’s just not worth the risk.


The Celebrity Whitening teeth whitening procedure is completely hygienic and you never touch your client or their mouth.  The procedure is effectively a DIY teeth whitening kit with an LED light accelerator to give the client maximum results in less than one hour.  With the kit alone and no accelerator these results would take weeks of continuous treatment.  This accelerated treatment is gentler on teeth and gums as there is less time with tissue exposed to the chemicals.  

For hygiene ensure the client handles their own kit and make sure they have a paper towel or disposable hygienic place to lay the cheek retractor when not in use.