And what you do after is to religiously brush your teeth as recommended by the manufacturer of the product. The other way is the simplest. You get the services of the professional that offers professional teeth whitening services. This is the most cost-effective way of managing your teeth without having to wait for weeks for results. Extrinsic tooth stains forms in the enamel while for the most part, intrinsic stains that show trough the enamel occur in the dentin. First, the tooth enamel is a highly mineralized very hard part of the tooth composed of strand of rod-like crystalline materials. These rods while very tightly packed have microscopic gaps in between them. Options offered in supermarket and drugstores For those who want to take care of the problem themselves, the products offered at supermarkets and drugstores are the solutions. These products that are available here will often contain lesser amount of whitening agents. Or the concentration of hydrogen peroxide for these products is less than what the professionals use. And at that stage, the pulp is still enlarged and when done for people of this age then this may only irritate that area. Also it should be remembered that these procedures are not best for pregnant women. Once the women gave birth and has finished the lactating stage, then that is the time that whitening procedures are safer. For most people though, the irritation lasts only while the bleaching agent is in the mouth and dissipates gradually with use or when the strength of the mix is reduced. Again not everyone suffers mouth and gum irritation. Uneven Teeth Coloration Mouth whitening and bleaches only affect the color of the teeth. After that, a dental exam is conducted to check for cracks, tooth decay and gum problems. Photographs will then be taken which will be used as a benchmark when assessing the whitening progress. The shade of your teeth will also be measured thru the Vitapan shade guide to arrive at a correct shade that your teeth should have.