What should I do if my teeth turn black from smoking?

First, one should quit smoking. Smoking cessation reduces the intake of harmful substances in the oral cavity, thereby lowering the risk of teeth turning black. It is important to maintain good oral hygiene habits, including regular tooth brushing, flossing, and using mouthwash, to effectively remove surface stains and bacteria from the teeth. Additionally, methods such as ultrasonic cleaning, cold light whitening, or abrasive polishing may be chosen to remove surface pigmentation and help restore the natural white luster of teeth.