The Procera crown â Procera is a milled ceramic on the inside with a more traditional porcelain baked onto the outside. The advantage of Procera is its exceptional strength. However, the milled ceramic core is opaque white, so many cosmetic dentists feel that it isnât as natural-looking as the more translucent materials.
Origin of the Names of the Months. 1  January: Janus, Roman god of doors, beginnings, sunset and sunrise, had one face looking forward and one backward,  February: On February 15 the Romans celebrated the festival of forgiveness for sins; (februare, Latin to purify),
What's the origin of the phrase 'Flavor of the month'? This website is based in England and so we prefer UK spellings. In this case flavor is more appropriate than the UK flavour, for reasons that will become apparent. The phrase dates back to 1930s USA and originated in the advertising slogans of ice-cream companies there.