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Earrings can cause earlobe injuries. Investigators developed a 5-mm-thick silicon paddle model of the ear comparable to live human earlobes in the amount of force required to pull it off center by 6 mm and 10 mm. Using this model, they tested earrings of the hoop, stud, buckle, hook, and screw types. A hoop threads through the piercing in the earlobe. A stud earring is attached to a shank inserted through the lobe and into a backing on the rear of the earlobe. A buckle is similar to a hoop, with one end that goes through the ear and snaps into a groove at the other end of the hoop. Like a fish hook, a hook earring passes through the piercing and hangs behind the lobe. A screw works like a stud earring but screws into its backing. Piercings …