Our day begins with Toothpaste. We have several toothpastes in the market and some toothpaste manufactures produce many types of toothpaste, each for a specific purpose. But only a few of us know which toothpaste suits us best !
A toothpaste is primarily used to clean our teeth and suppress bad smell (halitosis). Regular brushing prevent plaque from turning into tartar and thus prevent tooth decay ( dental caries) and gum diseases ( gingivitis).
Ingredients :Normally a toothpaste contains mixtures of water, an abrasive, a detergent, a thickener, a humectant (moisturizer), and other ingredients such as flavoring agents, coloring, and sweeteners.
These are major part of a toothpaste. It consists of tiny insoluble particles which helps remove plaque and calculus from teeth. Common abrasives are aluminnium hyderoxide (Al(OH)3), calcium carbonate (CaCO3), various calcium hydrogen phosphates , silicas , zeolites and hydroxyapatite [Ca5(PO4)3OH].
Calcium Carbonate: It is the compound of which chalk is made, but the form used in toothpaste is not simply ground up chalk. The compound is chemically reformed into finer particles than those found in chalk.
Likewise, sand contains pure silica, but the form used in toothpaste is gentler than that in sand.
Harsher abrasives include : anhydrous dicalcium phosphate, zirconium silicate, crystalline silica, and pumice.
-Anhydrous dicalcium phosphate (CaHPO4): used as dietary supplement, dog treats, and enriched flour, and noodle product
-Zirconium silicate (ZrSiO4): A fine white mineral powder that is chemically inert and stable to very high temperatures. Insoluble in water, dilute acids and hot concentrate sulfuric acid
-Crystalline silica: basic component of soil, sand, granite and other minerals.
Those abrasives are commonly used by the dentist to remove tartar and stains.
Some European toothpastes even contain abrasives made of tiny granules of hard plastic.
Abrasives, like the dental polishing agents used in dentists’ offices, also cause a small amount of enamel erosion which is termed “polishing” action. Some brands contain powdered white mica, which acts as a mild abrasive, and also adds a cosmetically pleasing glittery shimmer to the paste. The polishing of teeth removes stains from tooth surfaces, but has not been shown to improve dental health over and above the effects of the removal of plaque and calculus.
The abrasive effect of toothpaste is indicated by its RDA value. Too high RDA values should be considered critical, and some dentists recommend toothpaste of an RDA value no higher than 50 for daily use.
What is Plaque?
Plaque is a sticky substance that forms on teeth. It is made up primarily of common oral bacteria and their products. It also contains some saliva and components that dissolve from food onto the teeth
If plaque is not removed, the bacteria digest the sugar in foods and beverages to form a family of acids that slowly erode a tooth’s enamel (hard outer coating).
What is Tartar?
Tartar, also called calculus, is a hard mineral substance that is chemically similar to tooth enamel.It forms along the gum line when calcium salts in saliva collect on the teeth along with dead bacteria in plaque Tartar above the gum line does not hurt the teeth, but because it quickly absorbs stains and turns brown, it is a cosmetic problem. Tartar below the gum line can cause gingivitis (inflamed gums), which may lead to periodontitis (loss of bone that supports teeth) and eventually loss of teeth.