Home teeth bleach or much known as teeth whitening is becoming more and more popular and has become a huge business. This is because more and more people are now valuing their smile. A great set of white teeth when you smile gives a warm impression to others. For those who are using home teeth whitening products, they must be patients for the results, because these products are not using the same chemical that dentist used. It might take weeks or even months to notice a difference on your teeth. Also, not all over the counter teeth whitening is effective because research show that 50% of all over the counter teeth whitening don’t work exactly the way they advertised it to be. The best way to get a health set of white teeth is by a regular visit to your doctor.