The fillings used today are also safer than they used to be. Your dentist will probably use gutta-percha, a resin from the Isonandra Gutta tree found on the Malay Peninsula, to fill the cavity and permanently seal the root canal. Gutta-percha is a rubberlike, waterproof substance that was used to lay the first transatlantic telegraph cable before the invention of plastic.
This manga follows the adventures of Princess Sapphire, a girl who pretends to be a male prince to prevent the evil Duke Duralumin from inheriting the throne of Silverland. It was originally serialized in Kodansha's ShÅjo Club from 1953 to 1956, later collected and released into two tankÅbon volumes.
For other uses, see Sapphire (disambiguation). Sapphire is a gemstone, a variety of the mineral corundum, an aluminium oxide (Î±-Al2O3). It is typically blue in color, but natural fancy sapphires also occur in yellow, purple, orange, and green colors; parti sapphires show two or more colors. The only color which sapphire cannot be is red - as red colored corundum is called ruby, another corundum variety.