Brushing your teeth at least twice a day is the foundation of dental care. Use a soft-bristled toothbrush and fluoride toothpaste to gently clean your teeth and remove plaque, bacteria, and food particles. Adopt a systematic approach, spending at least two minutes covering all tooth surfaces, including the front, back, and chewing surfaces. Be sure to brush along the gumline to prevent gum disease. Replace your toothbrush every three to four months or when the bristles become frayed.