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.
Shore up your core. The plank is one of the best exercises you can do for your core because it builds isometric strength to help sculpt your waistline and improve your posture.And depending on the type of plank you try, you can also engage your back, arms, shoulders, glutes, and hamstrings.Win! Whether you can hold a plank for 20 seconds or two minutes, youâll love these fresh variations on the standard move. Bonus: 16 of them donât require a single piece of equipment.nd depending on the type of plank you try, you can also engage your back, arms, shoulders, glutes, and hamstrings. Win! Whether you can hold a plank for 20 seconds or two minutes, youâll love these fresh variations on the standard move. Bonus: 16 of them donât require a single piece of equipment.
noun. 1  A long plank balanced on a central fulcrum so that with a person riding on each end, one end goes up as the other goes down. Also called Also called regionally dandle 2  . The act or game of riding a seesaw. 3  A back-and-forth or up-and-down movement.