Because the brackets and archwire are actually placed at the back of your teeth, they are virtually undetectable, allowing you to retain your normal appearance for the duration of your treatment. You doctor took courses specializing in the placement of these braces.
DEFINITION of 'Cost Center'. A department within an organization that does not directly add to profit, but which still costs an organization money to operate. Cost centers only contribute to a company's profitability indirectly, unlike a profit center which contributes to profitability directly through its actions.
A responsibility center is a part or subunit of a company for which a manager has authority and responsibility. The company's detailed organization chart is a logical source for determining responsibility centers. The most common responsibility centers are the departments within a company. When the manager of a responsibility center can control only costs, the responsibility center is referred to as a cost center. If a manager can control both costs and revenues, the responsibility center is known as a profit center.