Grinding often attributed to stress accelerates micro cracking of the tooth enamel that will hold tiny debris to be accumulated. It also causes the edges of the tooth shade darker, faster. Another big factor is smoking. Nicotine is brownish in color that could stick in the enamel of the tooth and even soak in its structure causing internal discoloration. This is why local home teeth whitening products have become very popular. The dentist will always give the best advice, treatment and service, and it is recommended that even for simple cosmetic enhancements there must at least be a professional consultation. After the initial consultation, the process of getting an appointment, finding the time and actually sitting in the dentist's chair is not always convenient besides there are a lot of conditions where it is actually more practical to get a teeth whitening kit and apply it at home where the person could save enormously on fees and time. Complement the use of the whitening toothpaste with the services of professional teeth cleaner. This is something that you would like to do if you want to achieve the best results for your teeth. The dentist or any professional is the one that will do the initial cleaning process. The dirt and the stains at the surface of the teeth will be removed, and will be primed up for the whitening session courtesy of the whitening toothpaste. This is so because in-office bleaching methods have more bleaching concentration than that which is offered over the counter thereby producing faster results. In-office tooth bleaching is also the safest. Unlike tooth whitening done at home, in-office whitening is conducted and monitored by a professional practitioner. Teeth whitening products are very affordable that customers sometimes overdo the practice that more may be better. It is not. Once the teeth arrive at its most natural white, no amount of teeth whitening will make it any whiter. From thence, a once-a-month touch up is enough for maintenance. Children up to sixteen years old is not recommended to have teeth whitening, so are pregnant women and lactating mothers. In theory, what makes the teeth whitening toothpaste works are its major ingredients. These products may contain special abrasives and these are the ingredients that work to remove the dirt on the teeth. And these products will always contain chemicals. And it is the role of these chemicals to break down the stains taken down by the abrasives.