To turn on the AutoRecover feature: 1  In Word 2010, from the menu, select 2  . In the window that opens, click the tab, icon, or list item. 3  If it is unchecked, check , and type a value next to minutes. 4  Click to make the change.
What is tooth enamel? Tooth enamel is a hard substance found in the shell of each of your teeth and is the part of the tooth thatâs visible when you look in your mouth. Enamel is considered the hardest substance in the human body. Itâs even harder than your bones; however, it can dissolve or decay when exposed to acid and a build-up of bacteria.
On the very outside of your teeth is something called enamel. Enamel is the hardest material in the entire body ! Below the enamel is a part of the tooth known as the dentin, which is mostly made up of hard minerals like calcium. (You might know calcium as the good-for-you ingredient that gives milk its white color.).n the very outside of your teeth is something called enamel. Enamel is the hardest material in the entire body ! Below the enamel is a part of the tooth known as the dentin, which is mostly made up of hard minerals like calcium. (You might know calcium as the good-for-you ingredient that gives milk its white color.).