It's a known fact that a bright and white smile can raise one’s self-confidence level and make him look great overall. The most frequently asked question of patients is the following: "What is the lifespan of teeth whitening?" There are various factors influencing it, such as your oral health care routine, nutrition, and way of life. Professional teeth whitening lasts approximately from 6 months to 2 years. The length of time during which you will have whiter teeth depends gr