Researchers have developed a "bioactive" glass as tooth filling material that will enhance the lifetime of "filling" and also reduces the risk of bacterial invasion. Besides, it will replace some minerals that were lost during the decay process. A" filling" is a way to restore the normal function and shape of a tooth damaged by decay and also to prevent them for further bacterial infection.
During a filling event, a dentist first removes the decayed tooth material, cleans the affected area, and then fills the cleaned out the cavity with a filling material to closing off spaces where bacteria can enter. A filling also helps to prevent further decay. Materials generally used for fillings include gold, porcelain, a composite resin (tooth-colored fillings), and an amalgam (an alloy of mercury, silver, copper, tin and sometimes zinc), glass ionomer cement (made by reaction of silicate…
