The safest route is to choose a small bottle in the mid strength range and test it. From there you can determine the strength of concentration and go higher or lower. Remember that if your gums or your tooth are being irritated or hypersensitive you can choose the lower grades but then the desired results will take longer to manifest. These rods while very tightly packed have microscopic gaps in between them. The density of the crystalline rods differs from individual to individual and explains the reason why some tooth enamel are tougher than another person's enamel. Nonetheless, all most all of us are born with bright shiny teeth. Here are some of the major benefits of cosmetic veneers and porcelain veneers: These veneers are best to cover worn enamel. The enamel deteriorates over time and this can be expected. In order to cover the wear and the deterioration, then the porcelain veneers can be used. Also the use of these veneers is best for wear and tear. The bleaching formulation products will often come complete with the custom-fitted tray so that will be used by the dentist to get an impression of the teeth of the person. When this treatment option is considered, the treatment may be performed for as short as 30 minutes to as long as 8 hours. And what is the cost of this whitening solution? The polishing action is important as this will remove the plaque and dirt found at the surface of the teeth. The mouth will then be isolated with the use of the gauze. This is a necessary step so that the teeth will be dry for the rest of the procedure. There will be times when the retractors will be used as well, and this is important so that your lips and tongue will not get in contact with the whitening agents incorporated in the solution. Choosing Between At-home And Supervised Teeth Whitening Procedures All options relating to teeth whitening can be broadly categorized into two. The first group of procedures and options fall under at-home teeth whitening procedures. The next set belongs to dentist-supervised teeth whitening procedures.