It is important that you apply the teeth whitening gel properly so you do not waste any of the gel and that you experience the least amount of sensitivity while using the gel.
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1. Prior to Treatment: Brush and floss just prior to bleaching your teeth. The whitening gel is the most effective with clean teeth. Try the trays in first without any beach to check the fit and comfort. Make sure that the bleaching trays are clean and dry before applying the whitening gel. Moisture reduces the efficiency of the whitening gel and slows down the whitening process.
2. Applying the Bleaching Gel: When you apply the gel make sure not to fill the trays. Place a SMALL drop of tooth whitening gel halfway up on the inner front surface of tray (in the front of each tooth in the tray). Do not spread the bleach around. Recap the syringe for next treatment until empty. The average treatment per arch requires approximately 0.5ml of whitening gel.
3. Inserting the Bleaching Trays: Insert whitening tray in the mouth over the teeth. Seat the tray firmly against the teeth. Wipe the excess gel which seeps over the brim of the tray onto your gums with your finger or a cotton swab. Wear the tray with the gel as directed below.
4. Wearing Time: We recommend wearing the tray with the bleach for 2 hours. If sensitivity develops &#; either wear for only 1 hour or use every other day. Wear both trays at the same time during bleaching process.
5. After Whitening: Remove the tray and rinse off your teeth. Brush any remaining gel away. Brush, floss and continue routine dental cleaning. You may initially notice white splotches on teeth following removal of tray. This is typically cause by dehydration of the teeth and should diminish within an hour. For one hour following bleaching do not eat or drink things which may cause staining of the teeth (i.e. coffee, tea, berries, mustard).
6. Caring for Your Trays and Gel: Clean whitening trays with a toothbrush or Q-tip and cold water. Store trays in the tray holder and gel in cool dry place away from heat and direct sunlight. The gel may be refrigerated to prolong the shelf life, but do not freeze.
Dental whitening gel can be refrigerated for longer shelf life. Shelf life is 1 year un-refrigerated and 2 years refrigerated. These are general recommendations and may vary between manufacturers. Please read the manufacturer&#;s instructions. Use only in accordance with these instructions.
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Tooth whitening has become one of the most frequently requested dental procedures by the public. The public has come to demand whiter, more perfect smiles and in response many choices for tooth whitening have been made available. These include home-based products such as toothpastes, gels, and films, as well as in-office based systems where products containing highly concentrated bleaching agents are applied under professional supervision. The profession and public have been aware of certain risks related to tooth whitening such as increased tooth sensitivity and gingival irritation. New research has shown that there are other risks such as tooth surface roughening and softening, increased potential for demineralization, degradation of dental restorations, and unacceptable color change of dental restorations. The new research is also focused on optimizing whitening procedures to reduce tooth sensitivity and to increase the persistence of the whitening.
The public has been influenced by the portrayal of perfect white smiles in the media. . The color quality of television, movies, electronic and print media has raised self-awareness of discolored teeth. In the late &#;s several companies introduced both home-based products and professionally applied tooth whitening products into the U.S. marketplace. These have gained popularity with the public who has come to demand whiter, more perfect smiles.1 There are several different methods for whitening teeth, each with their own mechanism of action. The efficacy of these different methods is dependent upon the particular tooth discoloration that is being treated. Causes of tooth discoloration can be categorized into two main groups: intrinsic and extrinsic staining (see ). Intrinsic staining, sometimes called internal staining, can be attributed to factors such as genetics, age (from enamel wear over time exposing yellower dentin), antibiotics, high levels of fluoride, and developmental disorders and can start before the tooth has erupted. After eruption of the tooth some dental restorations can cause tooth staining. Extrinsic staining, sometimes called external staining, is largely due to environmental factors including smoking,pigments in beverages and foods, antibiotics, and metals such as iron or copper. Colored compounds from these sources are adsorbed into acquired dental pellicle or directly onto the surface of the tooth causing a stain to appear. See for examples of the staining from these sources.
Tooth whitening is any process that lightens the color of a tooth. Whitening may be accomplished by physical removal of the stain or a chemical reaction to lighten the tooth color. Bleaching is defined here as the chemical degradation of the chromogens. The active ingredient in most whitening products is hydrogen peroxide (H2O2) which is delivered as hydrogen peroxide or carbamide peroxide. Carbamide peroxide is a stable complex that breaks down in contact with water to release hydrogen peroxide. Because carbamide peroxide releases hydrogen peroxide the chemistry of most tooth whitening is that of hydrogen peroxide.
Tooth stains consist of compounds that have color or darker shades called chromogens that are accumulated in the tooth (intrinsic) or on the tooth (extrinsic). Chromogens fall into two categories: large organic compounds that have conjugated double bonds in their chemical structure as shown in ; and metal containing compounds. Bleaching of the organic compounds by hydrogen peroxide involves reacting with the double bonds to oxidize the double bond as shown in . This causes the chromogen to become a lighter colored compound. Bleaching of the metallic compounds is much more difficult; better esthetic options may be veneers, bonding, or crowns. There are some professional products that contain sodium hypochlorite (NaOCl) which reacts with the double bonds of the chromogen in much the same way as peroxide as shown in .
Open in a separate windowDifferent product types are marketed to address the particular stain to be removed. The broad categories include: cleansers such as smokers&#; toothpastes which contain larger amounts of detergents and abrasives to aid in the removal of chromogens from the tooth surfaces; bleaches to react with the chromogens to lighten color; and products that have both increased cleansing and bleaching. More severe or complex stains are best lightened professionally, while over-the-counter products can be used for milder cases. The treatment time required for reaching the tooth whitening end point is dependent on the time of exposure and the concentration of bleaching compound. This end point is dependent on the type of whitening employed, usually 1 to 2 shades for cleansers and over-the-counter (OTC) gels, and more for professionally applied products.
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