When were dental fillings first used?

Answer A Chinese medical reference in 700 A.D. is the first recorded use of silver dental fillings. A German dentistry book dated 1528 to 1530 A.D. describes the use of gold fillings. Modern fillings were... Read More »

Top Q&A For: When were dental fillings first used

Can zirconium oxide be used for dental fillings?

Zirconium oxide, also known as zirconia, is a ceramic material. According to a 2010 report in the "New York State Dental Journal," it can be used in dental fillings. Zirconia is less likely than ot... Read More »

When were tanks first used in WWI?

According to, tanks were first used in World War I on Sept. 15, 1916, when Capt. H.W. Mortimore took British D1 tanks into battle at Delville Wood. These early tanks proved unreli... Read More »

When were bar codes first used?

In 1948, Bernard Silver, a graduate student at Drexel Institute of Technology in Philadelphia made the first step in the use of bar codes. Silver and Norman Joseph Woodland, a twenty-seven-year-old... Read More »

How old were you when you first used a computer?

About 35. I had always used typewriters up until then.