Which method involves mechanical scraping using wire brushes or sandpaper?

The method that involves mechanical scraping using wire brushes or sandpaper is dermabrasion. This technique is designed to remove the outer layers of skin, making it useful for treating various skin conditions, such as acne scars, deep wrinkles, and uneven skin texture. By mechanically abrading the skin, dermabrasion encourages the regeneration of fresh, new skin cells, which can lead to a smoother and rejuvenated appearance.

Other procedures mentioned, like electrodesiccation, involve using electrical currents to destroy tissue, while chemical peels utilize acidic solutions to exfoliate and peel off the outer layers of skin without mechanical scraping. Fulguration refers to the destruction of tissue using a high-frequency electrical current but does not include a scraping component.