Typically you can expect whitening to last from six months to two years, although some studies report results lasting up to 10 years. Avoiding red wine, coffee, and smoking—all of which can cause staining—helps preserve the results.
Prices vary widely for tooth whitening. Over-the-counter kits can cost as little as $20, with extensive in-office procedures approaching up to $1,000. If you want professional whitening, you can expect the price to be around $300 to $800 depending on your unique needs. If you want an at-home bleaching kit from your dentist, expect to pay between $300 and $600.
Yes, many studies have proven that tooth whitening is safe. You can protect your tooth enamel by using calcium sulfate and fluoride.
Generally, no. Sensitivity from tooth whitening is always temporary. That means if there is any sensitivity caused by the whitening, it goes away within one to two days after the treatment, and the patient returns to the state of sensitivity he or she had prior to starting the whitening process.
Many people try over the counter solutions like whitening toothpastes, trays, or strips. These treatments work but not as well as professional solutions. As with most things, what you buy in the store is simply not as strong as what you can get from a medical professional. Additionally, store-bought whitening trays are designed to fit everyone’s teeth, not your teeth specifically. This means that they can become loose, and the solution can leak, leading to gum irritation.
As people age, it is common for teeth to become dull and yellow. This is in part due to age itself and also due to what a person eats and drinks. Drinking coffee, tea and wine, for example, can stain your teeth. Smoking and eating foods that contain food coloring can also stain your teeth. Brushing immediately after eating and drinking can help to prevent stains but is typically not enough to remove the risk entirely. Fortunately, stained and yellow teeth don’t have to stay that way.