Dental bleaching, otherwise known as teeth whitening, is a safe and fast procedure and is a near permanent option to correcting tooth discolorations. You can even choose how much or how little you want your teeth whitened. So how does it work? A special bleaching agent is provided alongside clear splints, which you wear on your teeth for a couple hours at a time per day. During that time, the agent bleaches the stains out of the teeth’s enamel, leaving you a white and bright smile all within a short number of days