In the context of a person: A hothead, a beastly person. In dentistry: Plaque is a synonym for tartar
A planque
The soft sticky film is called plaque. When plaque is not brushed away, it hardens and forms tartar on the teeth. Tartar must be scraped away with a metal dental instrument & cannot be removed by simple brushing. Brush away plaque so it does not have time to harden into tartar.
Food and bacteria. Regular brushing of teeth with toothpaste can reduce, but no get rid of tartar or plaque buildup.
Tartar.
I think materia alba is a layer of organic waste (eg desquamated epithelium, blood cells, macrophages) as well as food that forms on top of the plaque layer. It can become calcified and form calculus (aka tartar, aka materia ultima). Its what comes after plaque (aka biofilm) has been formed on the tooth surface and precedes calculus.
WHO-1978 Dental Plaque is defined as a specific but highly variable structural entity resulting from sequential colonization and growth of micro organisms on the surfaces of teeth and restoration consisting of micro organisms of various strains and species are embedded in the extra cellular matrix, composed of bacterial metabolic products and substance from serum, saliva and blood.
Plaque adhere to the teeth surface firmly than material alba
Calculus is calcified dental plaque, commonly called tartar, and subgingival calculus is tartar found on the roots of the teeth below the gumline.
Calculus (also called "tartar") is a buildup of minerals (chiefly Calcium Phosphate) on the teeth. Minerals are caught in unremoved plaque harden onto the teeth forming tartar, which then forms a rough-surfaced base for more plaque to form.
Keeping optimal oral hygiene with daily brushing and flossing, removes plaque and prevents tartar buildup. The dental specialist can scrape plaque and tartar from teeth during a routine examination. Dental sealants can also help keep plaque from building on the top chewing surfaces of teeth. Dry mouth medications can be prescribed to increase saliva production. Fluoride treatments can also help slow the growth of plaque-causing bacteria & stop tooth decay. The method of removing the tartar is called scaling. Special instruments and methods are used to remove the tartar by dentists, who are well trained for the process For more information visit: kirklandpremierdentistrydotcom.
"Tatar" refers to a Turkic ethnic group primarily living in Russia and other parts of Eastern Europe, while "Tartar" historically referred to various Turkic and Mongolic tribes or nomadic warriors, but is now commonly used to describe a creamy sauce.