#Hydrogen peroxide teeth whitening professional

However, due to continuous chemical and mechanical wear of enamel with increasing age (erosion, etc.), the enamel will become thinner and more translucent, i.e., the dentin will become more visible and the overall tooth color will become darker. Consequently, natural enamel has a white color with some translucency. The original color of pure hydroxyapatite (i.e., without substituting foreign ions) is colorless/white, which also broadly holds for the integrated proteins. The enamel surface itself is covered by the pellicle, which contains mainly salivary proteins, carbohydrates, and lipids. Its hardness and fracture toughness stem from a complex entanglement of the hydroxyapatite needles that are connected via an organic protein phase.

Enamel, the outer part of a tooth, is a highly mineralized tissue containing about 97% hydroxyapatite in the form of micrometer-long needles that form a complex hierarchical organized microstructure. The inner part of a tooth is called dentin, which is a protein-rich bone-like biocomposite containing about 70% hydroxyapatite with proteins (mainly collagen) and water forming the rest. The mineral phase of human teeth consists of calcium phosphate in the form of hydroxyapatite, Ca 5(PO 4) 3(OH). The effect of other whitening agents in vivo is often unclear because of a shortage of placebo-controlled clinical trials. The applicability of abrasives in teeth whitening is limited due to potential tooth wear, especially when toothpastes with high RDA values are used. In-office bleaching using peroxides is effective, but side effects like tooth sensitivity or a damage of the natural organic matrix of enamel and dentin may occur. Frequently used whitening agents are abrasives (mechanical removal of stains), antiredeposition agents (prevention of deposition of chromophores), colorants (intended to lead to a white color), proteases (degradation of proteins), peroxides (oxidation of organic chromophores), and surfactants (removal of hydrophobic compounds from tooth surface). The current whitening methods are analyzed and discussed from a chemist’s viewpoint. Therefore, a comprehensive literature survey on teeth whitening agents and products was conducted.

The aim of this review is to summarize and discuss frequently used whitening agents and their efficacy from a chemical viewpoint. They can help you find the best option for you to get the results you want.Besides prevention of caries and periodontitis, an increasing number of oral care products focus on teeth whitening. If you're unsure which whitening toothpaste ingredient is best, talk to your dentist before making a decision. A whitening product that contains 10% carbamide peroxide will typically break down to 3.5% hydrogen peroxide, depending on the concentration.

After the breakdown occurs, the hydrogen peroxide is actually what whitens your teeth.

Carbamide Peroxide - Used in both over-the-counter whitening products and home-use remedies from your dentist, water-based carbamide peroxide breaks down into two components: hydrogen peroxide and urea.

#Hydrogen peroxide teeth whitening professional

During professional whitening procedures, the level of hydrogen peroxide can be as high as 25% to 40%, which is far more than what is considered a safe amount for at-home use. But for safety reasons, higher percentages of hydrogen peroxide are only used during in-office teeth whitening procedures administered by your dentist. Hydrogen peroxide works by removing extrinsic stains and - in some cases - intrinsic stains, as opposed to toothpastes that use high cleaning silica, which only removes surface stains on the outer layer of the teeth.īecause hydrogen peroxide is so good at whitening your teeth, it is true that higher concentrations can speed up the whitening process. When used in whitening toothpaste, hydrogen peroxide gently removes common food stains on the enamel and can make a big difference when it comes to whitening your smile.

Hydrogen Peroxide - Hydrogen peroxide has a long history as a bleaching agent in things like hair lightening products.