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 a yellowish metal that is a combination of copper and zinc. But some instruments that are made of brass, like the saxophone, are not considered brass instruments. So, what makes an instrument part of the brass family? For any sound to be produced, something has to vibrate, such as a column of air, a string, a reed, or a drum head. In the case of brass instruments, it is actually the player's lips that vibrate. This happens in a mouthpiece that's attached to the instrument, causing the air in the instrument to vibrate. Any instrument that produces sound in this way is part of the brass family. There are two ways to change pitch in a brass instrument. The first way is to make the tubing of the instrument shorter or longer. Valves redirect the air to shorter or longer routes to make the pitch go up or down.