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.
Replacing Sound Fillings. Amalgam fillings (silver) are a mixture of different metals such as 65% silver, 6% copper,2% zinc and 25% tin bound with elemental mercury. Trituration is the process of mixing these alloys together with mercury.The mercury makes up between 45-50% of the mixture and acts as glue that binds these metals into a hard stable, and safe substance that can last for decades. These fillings usually last 12 years or longer.rituration is the process of mixing these alloys together with mercury. The mercury makes up between 45-50% of the mixture and acts as glue that binds these metals into a hard stable, and safe substance that can last for decades. These fillings usually last 12 years or longer.