A dental drill is a small, handheld tool used by dentists to remove decay from teeth and prepare them for fillings. It operates using a rotating bit that can quickly and precisely cut through tooth material. The drill is often equipped with a water spray to keep the area cool and reduce discomfort during the procedure. Dental drills come in various types, including electric and air-driven models. They are essential for maintaining oral health, as they help treat cavities and other dental issues. Proper use of a dental drill can lead to effective treatment and improved patient outcomes.