The only way to eliminate calculus build up is by brushing and flossing frequently. It takes pyhsical removal of the placque before it calcified into the hard tarter, or calculus. Some people will have more tendency to build up calculus because of the chemical composition of their saliva.
Brasso is a metal polish designed to remove tarnish from brass, copper, chrome and stainless steel. It is available either directly as a liquid or as an impregnated wadding pad.
Brass is an alloy metal made up of zinc and copper. The amounts used of each are adjusted depending on the intended use of the piece. Brass is popular and is used for cookware, mirror frames, picture frames, vases, candlesticks, instruments, jewelry, fittings and so much more. Brass, like silver and other metals, does tarnish easily.