A RealAge answered. You can expect to pay anywhere from $10 to $40 for a tray-based teeth whitening kit purchased over the counter (OTC) from a pharmacy or other retail store. You can also purchase tray-based teeth whitening systems from dentists. These systems feature custom-fit tooth trays or mouthpieces, which is why they are significantly more expensive than OTC tray-based teeth whitening kits. Purchasing a tray-based teeth whitening system from your dentist may cost up to $500.
Planking (or the Lying Down Game) is an activity consisting of lying face downâsometimes in an unusual or incongruous location. Both hands must touch the sides of the body. Some players compete to find the most unusual and original location in which to play.lanking can include lying flat on a flat surface, or holding the body flat while it is supported in only some regions, with other parts of the body suspended.
Plank most commonly refers to a split, flat piece of wood, often planed; it is technically distinguished from a sawn board. However plank may also be used to describe a thick board, of one and one-quarter inch or thicker for hardwoods and one and one-half inch or thicker for softwoods and 8 inches or wider. Confusingly, a horizontal hewn or sawn log house can be called a plank house when the timbers are of rectangular shape such as 7 x 11.