Teeth whitening strips Crest 3d white

From this article you will learn:

whitening strips – reviews, before and after photos,
differences between Crest and Blendamed strips,
price of strips in a pharmacy for 2022.

The article was written by a dentist with more than 19 years of experience.

Whitening strips are designed for chemical teeth whitening at home. The whitening effect is achieved due to hydrogen peroxide, which is applied in the form of a gel to the inner surface of the strips. Their advantages include ease of use, good effectiveness, and a much more affordable price compared to whitening at the dentist.

In Russia, the most well-represented strips for teeth whitening are produced under the brands “Crest 3D White” and “Blendamed 3D White Luxe”. This creates the illusion of choice, but in fact both brands are owned by the same (USA). Compared to Blendamed strips, Crest strips have a higher concentration of hydrogen peroxide.

Teeth whitening strips Crest 3D White and Blendamed 3D White Luxe are good marketing products. You don't have to go to the dentist. It is much cheaper than in the clinic. But why then are the reviews of a fairly large part of patients on teeth whitening strips still far from enthusiastic? In this article we will talk not only about the undoubted advantages of their use, but also the problems that you may encounter.

How do teeth whitening strips work?

Most home teeth whitening systems contain hydrogen peroxide or carbamide peroxide as an active ingredient. Different types of Crest 3D White strips contain different concentrations of hydrogen peroxide - from 9.5 to 14% (we will discuss each type of Crest strips in detail below), and Blendamed 3D White Luxe whitening strips contain 5.25% hydrogen peroxide.

Solutions of hydrogen peroxide and carbamide peroxide are capable of penetrating deeply into tooth tissue with prolonged exposure - to the entire thickness of enamel and dentin. Having penetrated inside, these peroxide compounds decompose there to form free radicals (active oxygen). It is free radicals that lead to the destruction of molecules of chromogenic substances, which give teeth pigmentation.

However, free radicals are not stable compounds and quickly decompose. Therefore, to obtain a whitening effect, hydrogen peroxide must be in contact with the teeth for a sufficiently long time, and it is also necessary to maintain a sufficient concentration. The lower the concentration of hydrogen peroxide in the strips, the longer they will have to be used to get the desired effect.

Instructions and recommendations for use

All packages of any series of Crest whitening strips contain instructions for attaching them. Only by following the recommendations and rules from the manufacturer will the result be as effective as possible.

This type of home whitening system is simple and includes the following steps:

It is necessary to study the packaging and composition of the product to avoid allergic reactions. Then carefully open and remove the dental strips, which are intended for one-time use only. They can be the same size, but most often the plate is shorter for the lower row of teeth.
Having previously removed the protective adhesive tape from the gel side, it is necessary to evenly attach the plates to the tooth surface and level them until the enamel completely takes the shape. It is most convenient to carry out the procedure in front of a mirror.
Leave the product for the time specified in the instructions, then carefully remove from the mouth. To completely clean your teeth, you need to use a napkin, brush your teeth, or simply rinse your mouth.

Manufacturers categorically do not recommend exceeding the period of exposure of the gel to the teeth, leaving the product in the mouth overnight, or eating or smoking cigarettes during the procedure. If the gel gets into the stomach, unpleasant consequences may occur.

Do not swallow strips or saliva that is released during the procedure. And if discomfort or special sensitivity occurs, it is recommended to reduce or stop the course.

Whitening strips Crest 3D White –

Crest strips for teeth whitening (Crest 3D White) - available in 6 different versions. They differ in different concentrations of hydrogen peroxide, the number of strips in the package, and the exposure time of the strips on the teeth. One of the strip options even has a special light source, which apparently should give the consumer the illusion that this product is similar to professional “laser” whitening systems.

But what's really important is that different types of strips hold onto the teeth differently. Some of them can slip on the teeth and do not stick well. When choosing Crest strips, pay attention to the fact that they contain Advanced Seal® technology (allows the strips to adhere firmly to the teeth and not slip on them). Otherwise, the strips will peel off and there will be no close contact of the whitening gel with the enamel surface.

If you have an uneven dentition/crowded teeth, or a pronounced inclination of some teeth, the FlexFit® technology will allow you to achieve good adaptation of the strips to the surfaces of all teeth. In this case, the strips will be slightly elastic (stretch), which will allow them to better adapt to uneven tooth surfaces or uneven dentition shapes. Only Crest 3D White “Supreme FlexFit” strips have this technology. If the strips do not adhere tightly to some surfaces, then the teeth in these areas will remain dark.

Crest Whitestrips - what is it?

Crest White Strips is an effective at-home whitening complex that guarantees the achievement of ideal results with regular and correct use. In addition, teeth whitening plates in this series are absolutely safe and have no contraindications or side effects, which makes them a truly universal remedy.

Whitening strips: reviews

Let’s say right away that the Crest 3D White “Vivid” strips and especially the Blendamed 3D White Luxe will receive the least good reviews. These versions of the strips do not hold onto the teeth well enough, they slide over them, and if salivation is quite active, it will not be possible to fix them well on the teeth at all, as a result of which there will be no necessary tight contact of the whitening gel with the enamel.

The reviews for White Light teeth whitening are satisfactory. In professional whitening techniques, light sources are used to accelerate the breakdown of hydrogen peroxide in the whitening gel into free radicals, and exposure to light is carried out not after, but during the procedure. In Crest 3D White “With Light” strips, the light is used for 10 minutes after the end of the procedure and, thus, it is not intended to activate the whitening gel.

The portable White Light lamp does not have its own whitening effect, because it is a source of light waves in the “blue” range, and only light waves in the ultraviolet range have a slight whitening effect. Therefore, we believe that the light source in these strips is purely a marketing ploy to make this procedure look like professional laser whitening. This allows us to sell 10 sets of Crest White Light strips - at the price of 20-40 sets of similar sets.

Which Crest strips are better –

We consider the best option for strips to be Crest “Supreme FlexFit”, which is tightly fixed to the teeth and allows the strips to adapt well even in areas of uneven teeth. In 2nd place we would put the Crest “Professional Effects” strips. But we do not recommend using Crest “Supreme Professional” strips with 14% hydrogen peroxide. The fact is that even if the strip does not come into contact with the gums, hydrogen peroxide always gets into the oral fluid due to the contact of the gel with saliva. Therefore, when using a 14% concentration, gum burns and a burning sensation in the throat will be practically guaranteed.

Please note that different versions of strips with the same concentration of hydrogen peroxide of 10% are recommended for different times. Moreover, where the exposure of the strips is 30 minutes, the whitening goes by 3-4 tones, and where the exposure is 60 minutes, by about 6-8 tones. In our opinion, the manufacturer deliberately recommends using essentially the same strips - for different times, so that it does not turn out that cheaper strips will be as effective as more expensive ones.

Crest Professional Effects Strips – Before and After

Crest Vivid strips – before and after photos

CONCLUSIONS: in general, the effectiveness of whitening strips can be very high, and under certain favorable conditions (straight teeth, absence of pigment plaque and dental deposits on the teeth, etc.) - the effect of such home therapy can be practically no different from the result of professional whitening in dentist However, before you buy teeth whitening strips, also read about their disadvantages, which we will tell you about later.

Terms of use

In order for whitening strips to help you quickly achieve a whiter effect and cause minimal harm, you need to use them in accordance with the instructions:

First you need to prepare your teeth for the procedure: first you should rinse your mouth, and then check that there are no food particles left between the teeth.
While using white crest strips, you will have to refrain from brushing or flossing your teeth. Otherwise, you may accidentally damage your gums, and this may lead to the penetration of the active substances contained in the strips into the blood.
Having finished the preparatory cleaning of the oral cavity, you need to take the package and take out two crest strips for teeth whitening. If you look closely, you can see the inscription “lower” and “upper” on them, which means the dentition on which they need to be fixed. The first are intended for the lower, and the second for the upper. It is no coincidence that manufacturers introduced such a division: all strips have a certain shape, taking into account the characteristics of the part of the jaw for which they are intended.
Next, the plates need to be applied to the teeth, but they should not go too far beyond the edge of the gums.
After making sure that the white crest strips are installed evenly, they need to be pressed against the teeth, then the gel will be evenly distributed over the entire surface.
Typically, the strips are worn on the teeth for 30-60 minutes. But before using them, be sure to read the instructions, since different manufacturers may have their own instructions for using the product. Using these strips, you can safely do normal activities - talk, sing. This will not affect the whitening effect in any way.
When the recommended time for wearing white crest strips has come to an end, they should be carefully removed, the remaining gel should be removed with your fingers, after which you should thoroughly rinse your mouth with warm water. Remember that the strips are for one-time use only.

Side effects and disadvantages of whitening strips –

Reviews for whitening strips on all sites are written as carbon copies; the texts of the reviews are more like advertising brochures that praise the strips from different angles, keeping silent about the shortcomings. And although home whitening techniques can indeed be very effective, teeth whitening strips still have significant disadvantages...

They do not whiten fillings and crowns -

Chemical whitening allows you to lighten only the tooth tissue. Fillings, veneers, and any types of artificial crowns cannot be bleached. This means that if you have fillings or crowns on one or more teeth, then after whitening they will look even darker against the background of the whitened enamel of the remaining teeth (Fig. 14). Whitening in such situations will mean the need to subsequently replace veneers, crowns and fillings with lighter shades.

It should also be taken into account that after a few months, the teeth will gradually begin to darken again (the speed of teeth darkening after whitening is related to your habits, for example, smoking, the frequency of drinking coloring drinks and foods). This may mean the need for either new replacement fillings, veneers or crowns, or ongoing periodic courses of home whitening.

Uneven whitening –

Reviews of teeth whitening strips are often negative due to the fact that although the front surfaces of the teeth become much whiter, they remain dark in the interdental spaces. This creates a sharp contrast between dark and light, and the interdental spaces end up looking like black triangles (Fig. 15). Why is this happening...

Firstly, the thickness of the whitening gel on the inner surfaces of the strips is only about 0.2 mm. At the same time, the surface of the teeth is not absolutely smooth, and therefore, when adapting the strips to the teeth, the whitening gel simply does not penetrate sufficiently into the interdental spaces. The second reason lies in the uneven position of the teeth, for example, when they are crowded. In this case, adapting the whitening strip to teeth located deeper (lingually) will be very false, which will mean poor contact of the whitening gel with these teeth.

Thirdly, the problem is that most people use Blendamed or Crest whitening strips without first removing plaque and plaque from the dentist. The fact is that the surfaces of teeth covered with pigment plaque whiten a priori much worse, because coating on these areas will prevent hydrogen peroxide from penetrating into them. And therefore the surface of the teeth in these areas will remain dark.

Pain and sensitivity of teeth -

Clinical studies by Cooperetall in 1992 showed that the penetration of free radicals into the dental pulp occurs within 15 minutes after applying 3% hydrogen peroxide gel to tooth enamel. It is this process, as well as a certain degree of demineralization of enamel and dentin, that leads to the development of increased sensitivity of teeth after whitening.

Sensitivity is expressed in the appearance of pain to thermal stimuli (heat, cold). And the longer the bleaching course continues and/or the higher the concentration of hydrogen peroxide, the stronger the sensitivity will be every day. In this case, you can start using special pastes to relieve sensitivity, or reduce the exposure time of the strips on the teeth, or start using them every other time. And after completing the whitening course, it is worth taking a course of remineralization or fluoridation of teeth.

Important: if you have erosions, carious lesions, deep wedge-shaped defects with exposed dentin on your teeth, then you can predict a very high rate of hydrogen peroxide entering the dental pulp (neurovascular bundle) - with the development of severe pain, and even a chemical burn of the pulp , which may then even require removal of the nerve from the tooth. Therefore, caries and wedge-shaped defects must be cured before using whitening strips (24stoma.ru).

Burns and inflammation of the gums, throat irritation -

About half of all patients also complain of sore gums after using whitening strips. The fact is that the whitening strips have a straight shape - in contrast to the gum line, and therefore, when applying the strips to the teeth, they always come into contact with the interdental gingival papillae. As we said above, the strips are coated with a gel with hydrogen peroxide with a concentration of 5.25 to 14% (10% on average), which contributes to the development of a chemical burn of the gums.

Inflammation and burn of gums after whitening –

But gel with hydrogen peroxide can cause harm not only to the gums. The whitening gel is located in the moist environment of the oral cavity, so some of the hydrogen peroxide necessarily gets into the saliva. This means that hydrogen peroxide will affect not only the interdental papillae, but also other areas of the gums and the tongue. In addition, when you swallow saliva, hydrogen peroxide will contact the mucous membrane of the throat, causing irritation. To reduce such side effects, always rinse your mouth after removing strips, reduce exposure time, or use strips with a lower concentration.

White spots on teeth -

When you remove the whitening strips, you can often notice white spots appearing on the enamel. In most cases this is not a problem, because... occurs due to drying out of the enamel area due to the fact that the strips isolate the front surface of the teeth from contact with saliva. Such stains disappear after a few hours (after the enamel is saturated with moisture).

However, if you use low-quality whitening strips (the whitening gel will have an acidic pH), you can end up with chalky white spots on your enamel that will last a lifetime. This can also happen if the enamel of your teeth has poor resistance to chemical and mechanical factors, which occurs against the background of demineralization of the enamel. Generalization means that your enamel contains very little calcium, i.e. as if porous.

If there are white chalky spots on your teeth even before whitening, then this is one of the signs of enamel demineralization, which means that any type of chemical whitening will be contraindicated for you. The use of chemical bleaching against the background of enamel demineralization will lead to an even greater loss of calcium from dental tissues, which will increase the risk of tooth decay (as a result of increased abrasion or the development of caries).

What are they?

Teeth whitening strips externally look like transparent, soft and easily bendable plates with a gel agent under a protective adhesive film.

Usually the kit comes with 2 strips of different lengths, one is intended for the upper teeth, the other, shorter, for the lower teeth. On one side of these plates a special product is applied that has medicinal properties and a gel-like consistency. It consists of the following components:

water - fights enamel dehydration during the procedure;
Hydrogen peroxide is the main element that has a whitening effect;
glycerin - provides viscosity to the product;
carbomer - used for clutch;
sodium hydroxide and saccharin - helps neutralize acids and adds flavor;
salt of pyrophosphoric acid - prevents the appearance of plaque.

The main component of the product is peroxides, which are actively used by dentists in professional cleanings. They trigger oxidative reactions, destroying organic substances on the surface of the enamel.

Due to its interaction with tooth enamel, the gel product gives a brightening effect and can change the shade of teeth by several tones in a few procedures (depending on the duration of the recommended course). To use, a protective layer is enough and the plates are applied with a sticky layer to the teeth from the outside and inside.

How harmful are whitening strips to tooth enamel?

Hydrogen peroxide, with prolonged exposure, penetrates not only into the entire depth of enamel and dentin, but even into the dental pulp (neurovascular bundle). There are numerous studies that confirm the slight negative effect of peroxide compounds on tooth tissue...

Chemical bleaching with hydrogen peroxide can negatively affect the surface texture and shine of the enamel if the gel on the surface of the whitening strips has an acidic pH. In this case, erosions, chalky spots with a matte surface may appear on the enamel surface, and loss of enamel shine may occur. High-quality whitening strips contain sodium hydroxide or its analogues (make the pH neutral).
Clinical studies by Sighiand Denry 1992 and McCracken et al. 1996 - showed that chemical bleaching leads to a slight decrease in the strength of enamel and its wear resistance to abrasives and chemicals. This occurs due to demineralization of enamel and dentin, i.e. their loss of calcium. Studies have confirmed that the preventive use of a course of fluoride after the end of a whitening course can significantly improve the situation.
But the most important thing is that chemical whitening disrupts the bond between tooth dentin and filling materials (light composites, glass ionomer cements). This is confirmed by studies by Della Bona et al. 1992, “Tiunsakeretall” 1990, “Titleyetall” 1991. As a result, the marginal fit of the filling to the tooth tissue deteriorates, which can lead to the development of caries at the filling/tooth interface, as well as the need to replace fillings.

Conclusions: whitening strips with a concentration of hydrogen peroxide up to 10% inclusive are a fairly safe product for home use that does not cause critical changes in the teeth (provided that the product has a slightly alkaline pH, there are no carious lesions on the teeth, and also when good oral hygiene). A slight decrease in the degree of mineralization of enamel and dentin can be compensated for by subsequent courses of remineralization and fluoridation of tooth enamel.

Crest strips and toothpastes with nationwide delivery

In our store, each customer can receive a free consultation to choose the course that is best suited for themselves, taking into account the composition and effect, to make their teeth whiter and their smile more attractive. We also always offer only original products and in a wide range, so that everyone can choose the strips that suit their teeth best. And also buy toothpaste to maintain the effect of the procedure.

For the convenience of each buyer, more than 10 payment options are provided. Delivery of selected strips is carried out as quickly as possible, its conditions are favorable and convenient for customers from any corner of the country. Also, our company always provides profitable offers with the opportunity to save: discounts and gifts with orders.

Whitening strips: application diagram

Manufacturers of whitening strips recommend not brushing your teeth before using them, arguing that in this case the bacterial film on the surface of the gums will protect them from excessive irritation. This makes a certain sense, but this does not mean at all that you should have food residues in the spaces between your teeth, and traces of soft plaque at the necks of your teeth. Please note that the interdental spaces must be cleaned with dental floss.

1) Preparing to apply the strips - To improve the adherence of the strips to the teeth, you can remove excess saliva from the front surfaces of the teeth using a dry gauze pad.

2) Applying strips - next, take a wider and shorter strip and, having separated it from the protective layer, carefully, without much pressure, apply it with the gel side to the front surface of the lower teeth. The bottom edge of the strip should run along the gum line. After you are sure that the strip is positioned correctly, press it against your teeth for 2-3 seconds.

Then fold the upper edge of the strip over the cutting edge of the lower front teeth and also press for 2-3 seconds. Fix the second (narrower and longer strip) in the same way - on the teeth of the upper jaw. The exposure time of the strips on the teeth is usually from 30 to 60 minutes, according to the type of strips and instructions.

What the overlay of stripes looks like: video

3) Clean your hands – when applying the strips, you will definitely get the hydrogen peroxide gel on your fingertips. The smallest thing that can happen is that your fingertips turn white. It will be much worse if you rub your face with unwashed hands or get the gel into your eyes, or if the gel gets from your hands onto the fur or skin of pets. Also, very often patients spoil their clothes, because... Hydrogen peroxide will permanently lighten areas of tissue where it gets in contact.

4) Additional recommendations - as we said above: hydrogen peroxide will in any case get from the whitening gel on the strips into the oral fluid. To avoid unnecessary irritation of the gums and throat, it is advisable to periodically spit out saliva without swallowing it. This process is not very pleasant, so try to use the strips at times when you are not actively salivating (i.e. not on an empty stomach). A small amount of saliva can be swallowed without fear of the above side effects.

If you begin to feel a burning sensation in your gums or throat, immediately remove the strips and rinse the oral mucosa with plain water. Perhaps next time you will need to reduce the time for fixing the strips on your teeth, or start doing them every other time (this will simply lengthen the whitening course), or purchase strips with a lower concentration of hydrogen peroxide. And lastly, after completing such a home whitening course, always have your enamel fluoridated at the dentist.

Also, during the whitening course, you should give up highly abrasive toothpastes to compensate for the temporary decrease in enamel wear resistance, as well as drinks and foods with a high acid content (wine, fruit juices...), as well as smoking. If you use an electric toothbrush for hygiene, then for some time it is better to use either the attachment for sensitive teeth or the “gentle brushing” mode without pulsating movements.

Varieties

Crest Whitestrips products are widely known throughout the world and are the undisputed leader in the whitening strips market. Dentists recognize the safety and effectiveness of this home whitening method.

Thanks to a wide range of products, this product can be used by people with different wishes, goals and financial capabilities.

For gentle lightening of enamel

The innovative approach used in the production of Crest brand products implies safety and ease of use.

The company's products can be used for people with sensitive enamel. Moreover, the line of products includes strips of different composition, which allows you to achieve a change in tone over different periods of time. You can choose a quick result or a gradual change in shade.

3D White Supreme Professional

Recognized as the best alternative to laser whitening, these strips do not cause changes in enamel sensitivity and offer a maximum brightening effect of 6-7 shades.

In their shape, they are longer than their counterparts, due to which they can more conveniently cover a larger surface of the enamel. Supreme Professional is about 80% better than other strips of this brand and the desired result is achieved much faster.

One package is designed for a long course for one person or can be used by a family. One package is enough for 42 uses. In this case, the following course is recommended: once a day for half an hour, and for the fastest effect - 2 times a day for half an hour (morning and evening).

Depending on individual characteristics and results, one pack of Supreme Professional can be divided into several courses of administration. Changes are usually noticeable on the second day and last for a year.

Cost from 6000 rubles.

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3D White 1 Hour Express

Whitestrips 1 Hour Express offer super fast professional whitening in just 60 minutes. This is an ideal product to use before an important meeting, holiday or photo shoot.

An absolutely safe composition with a new formula guarantees high-quality results for 3 months. This product will provide a quick refreshing brightening effect.

You can take a whitening course at home at any convenient time. The pack contains only 8 plates, which are enough for 4 procedures. The maximum possible result is a color change of 2 or 3 tones for up to 12 months.

Cost from 2600 rubles.

3D White Stain Shield

This product removes the most difficult pigmentation on enamel from cigarettes, coffee, strong tea or red wine, and also protects against new stains. The package includes 56 plates, which need to be applied for 5 minutes.

You can create a schedule of use yourself - once a day or once a week, taking into account your lifestyle and need.

The product guarantees deep cleansing and plaque removal, the result appears in about 7 days. One package is designed for 28 days and promises a change in shade by 2-3 tones.

Cost from 2700 rubles.

3D White Vivid

This product can be used as a first introduction to the Crest brand and is considered the most economical option for doing your own teeth whitening at home. A noticeable result will be visible around day 5, and the final change in tone will be achieved after 12 days.

The composition contains only ingredients that are safe for enamel, they allow you to use the product regularly - every day for 30 minutes.

The package contains 24 records, which are designed for a 12-day course. The expected whitening implies a change in the color of the enamel by 2 or 3 tones, depending on the initial state.

Cost from 2500 rubles.

3D White Advanced Vivid

This line of quality whitening strips is suitable for experienced users and offers long lasting results of 14 months.

There are only 28 gel pads in one package. The full course includes 2 weeks and involves daily use of strips. You can attach them to the surface of your teeth for half an hour.

Cost from 3200 rubles.

3d White Intensive Professional Effects

For the highest degree of whitening, this series of strips can be used. Thanks to the unique composition, the plates do not slip and adhere tightly to the dentition.

The effect can be compared to professional cleaning in a dental clinic - this is whitening by 5 tones (including dentin). The course of application is designed for a week - every day for 2 hours. Visible changes will be seen after the first procedure.

Cost from 3900 rubles.

For intensive enamel brightening

For those who want to get professional results and maximum enamel lightening without leaving home, special safe strips have been created that are used for both primary whitening and color maintenance. They provide long-lasting results equivalent to in-office dental whitening.

3D White Luxe Glamorous

This type of strip for achieving a Hollywood smile is considered many times more effective than any of the pastes intended for professional whitening.

The pack contains 28 plates with an improved medicinal gel that provides high-quality fixation. The course of application involves two weeks of daily use of the product (keep for half an hour).

A slight change in color will appear on day 2-3, and lightening by 4 tones will be achieved after a two-week period.

Cost from 3100 rubles.

3D White Luxe Supreme Flexfit

High-quality and fast whitening without discomfort right at home can be done using these strips of the same length.

A distinctive feature of this type of plate is its ability to stretch and take the desired shape. They fit comfortably and guarantee the best results within 14 days. A noticeable change in the shade of the enamel is expected after the first procedure.

Cost from 3800 rubles.

3D White Luxe Gentle Routine

This line guarantees the most gentle effect on the surface of the teeth. There are 56 plates in one package. You only need to attach them for 5 minutes, but daily. Noticeable changes will appear in a week, and the final result - lightening by several tones - will take almost a month.

The manufacturer promises guaranteed results and a mild, minimal effect on the enamel. This series is also suitable for maintaining tone after using more intense products.

Cost from 2800 rubles.

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3D White Luxe Professional Effects

This line of strips, which requires a 20-day course of daily use, will help you achieve professional whitening results.

Changes appear on the third day, and the effect ( lightening by 4 or maximum 5 tones ) lasts for a long time, up to 18 months. The composition of the product ensures strong fixation on the top and bottom rows.

Cost from 3600 rubles.

Contraindications for bleaching –

The development of allergic reactions to the whitening strips Cross and Blendamed is possible. If you are allergic to any of the components, you must avoid using them. There are also a number of diseases and conditions in which the use of whitening strips will be contraindicated.

Contraindications to whitening strips –

presence of enamel erosions,
the presence of areas of enamel demineralization (in the form of white chalky spots),
the presence of untreated caries,
with the frequent appearance of new carious lesions,
the presence of deep wedge-shaped defects with exposure of dentin,
during pregnancy and breastfeeding,
for diabetes mellitus,
You must stop smoking for the entire whitening period.
with severe degrees of fluorosis, enamel hypoplasia or tetracycline staining,
in adolescents under 18 years of age (at this age there is still a large volume of pulp chambers, which can lead to a chemical burn of the pulp and the need for tooth depulpation).

Features of use and warnings

Your teeth will become perfectly snow-white if you comply with a number of conditions:

While wearing teeth whitening strips, use special toothpaste;
For one to two hours after removing the strips, avoid exposing your teeth to dyes. Therefore, you should not smoke or drink tea;
During the whitening period, it is recommended to completely forget about bad habits - do not smoke, drink tea, coffee, cocoa and other drinks that contain reagents that can change the shade of the enamel;
After removing the strips, be prepared for the fact that your teeth may become sensitive within half an hour. With this in mind, it is recommended to drink warm drinks, but you should not eat cold or hot liquids or food;
Make sure that the gel does not enter the stomach, otherwise its side effect will appear in the form of a laxative;
If you feel unwell while wearing the whitening strips, you should immediately remove them and not use them again;
If you have diseases of the oral cavity or some time ago you received an unhealed injury to the mucous membrane and surface tissues, then you will have to cure all your problems, and only after that you can return to the procedure;
With the help of whitening strips, you can only change the color of tooth enamel, but you will not be able to make crowns or fillings snow-white.

To date, many types of crest whitening strips have been created, but they contain almost the same components . This is done in order to offer all consumers the most suitable product for them. If desired, you can find strips even for sensitive teeth. But you should remember the contraindications: it is not recommended to use these plates for adolescents under 16 years of age, women during pregnancy and breastfeeding.