In order to become an orthodontist, students need to complete four years of dental school. Coursework in dental school includes anatomy, physiology and microbiology, as well as classes that apply more specifically to orthodontics, such as dental anatomy and occlusion, pediatric dentistry and dental materials.
This article is about the color. For other uses, see Purple (disambiguation). Purple is a color intermediate between blue and red. It is similar to violet, but unlike violet, which is a spectral color with its own wavelength on the visible spectrum of light, purple is a composite color made by combining red and blue.
Unlike Bordeaux blends, which use a significant amount of other grapes, the Burgundy wine is given purity and generalized by the use of only these two grapes for red and white wines: Pinot Noir and Chardonnay, respectively.