When you choose vinyl soffit for your home, you can forget about time-consuming maintenance. The vinyl color goes all the way through each panel, so it never needs to be painted. Your soffit will keep its fresh-looking finish season after season.
The white, outer shell of a tooth is made of enamel, the hardest substance in the body. Under the enamel is a softer substance called dentine, and inside this is the soft, living heart of the tooth, called the pulp cavity. Beneath the hard outer surface, dentine forms the body of a tooth.he white, outer shell of a tooth is made of enamel, the hardest substance in the body. Under the enamel is a softer substance called dentine, and inside this is the soft, living heart of the tooth, called the pulp cavity. Beneath the hard outer surface, dentine forms the body of a tooth.
In the middle of some bones is jelly-like bone marrow, where new cells are constantly being produced for blood, the Merck Manuals noted. Teeth are considered part of the skeletal system but they are not counted as bones. Teeth are made of dentin and enamel, which is strongest substance in your body. Teeth also play a key role in the digestive system.