Summer in Japan is the season of fireworks! Highlights of the fireworks shows throughout Japan. Ten fireworks shows that have distinguishing features such as a long history, a high level of craftsmanship, or being highly entertaining have been selected from representative fireworks shows throughout Japan and are introduced here.
Most people recognize dental amalgams as silver fillings. Dental amalgam is a mixture of mercury, silver, tin and copper. Mercury, which makes up about 50 percent of the compound, is necessary to bind the metals together to provide a strong, hard, durable filling.
The decayed material in the cavity is removed and the cavity is filled. Many fillings are made of dental amalgam or composite resin. Amalgam is a silver-gray material made from silver, mercury, copper or other metals. Composite resin offers a better appearance because it is tooth-colored.