Also the use of these veneers is best for wear and tear. As people age, the teeth also suffers considerably. The teeth will crack or will have chips. And the veneers can be used to address this concern. Porcelain veneers are also best for use on uneven teeth due to tooth grinding, and can be used to correct the abnormal spacing in between the teeth. This agent may not be as fast acting but it is far gentler and would likely be recommended by your dentist. Depending also on your condition, the concentration of carbamide peroxide in your bleaching tray could be lowered by your dentist to insure comfort as the teeth is being bleached. There are many cases where the staining is deep and for the meantime intractable. When whitening the teeth at home, it will always be recommended to use those that have low concentration of whitening agents. Although this method is far less effective and takes a while longer, it is also the safest. When using hydrogen peroxide for example, the concentration of the mix that is recommended at the back of the bottle should be adhered strictly if not less than what is recommended just to test it out. Right now, there are dentists that offer these services at reduced prices thus making these services affordable for the bigger set of consumers. Just how much should you prepare when you will select these professional services? By some estimates, you need to raise at least $300 and for top of the line services you need $2000. While superficial stains and discoloration could be removed by prophylactic cleaning and brushing, there are stains that are a little more stubborn and could accumulate between the spaces of the tiny cracks in the tooth that would need bleaching to remove the stains. When the stains are not effectively removed and stays on the teeth for a period of time, this could penetrate deeper into the dentin which could require more involved methods. Some of the risks that are likely to occur are sensitivity to touch, temperature and pressure. For persons with sensitive teeth though, toothpastes containing potassium nitrate are recommended. Even without specialty toothpastes, the sensitivity is usually over in two days. However, persons with recessed gums, faulty tooth restoration and cracked teeth are more likely to encounter shooting pains.