Teeth whitening or bleaching

The dentist may photograph the teeth and then start the bleaching procedure. In the most common method, the dentist applies the bleaching product on teeth and activates it with a special laser or light or heat. In 30-60 minutes the teeth are remarkably whitened but you may need more appointments to achieve the desired result. In another method of teeth whitening, the dentist takes templates of the patient's teeth and brings him one or two teeth whitening (bleaching) trays, which exactly match the building of his/her mouth and teeth. If the patient is concerned with whitening only one row of teeth (upper only or lower only), the dentist will present only one tray. When whitening the two rows together, the doctor will prepare two trays. It is very important for the tray to precisely match the patient's mouth building. A good match will keep the bleaching material on the teeth, as it will not irritate the periodontal gums. Over-the-counter teeth whitening (bleaching) trays do not usually fit perfectly in the structure of the mouth. If the bleaching substance can leak, it may irritate the periodontal supports. At home, each of the trays is filled with bleaching material, which is provided by the doctor. Then the tray is attached to the mouth for several hours every day. Many people reach the desired whitening level, within a week or two. But in some cases, a tray needs to be installed for four weeks or more. The advantage of this method is that whenever you feel that your teeth have lost their whiteness, you can put the tray back on your teeth. Your dentist will tell you how long should you wait in between the use of bleaching materials again. In some cases, normal tooth whitening cannot improve the appearance of the teeth. In such cases, the dentist performs a different treatment, whitening the tooth from the inside. This method is used in cases which there is no longer a living nerve in the tooth. The dentist places a whitening substance inside the tooth and covers it with a temporary filling material. The tooth remains in this condition for several days. Sometimes, to obtain the desired color, it is necessary to repeat the treatment several times.