Replace your toothbrush regularly: Replace your toothbrush every 3-4 months, or sooner if the bristles are worn. Eat a healthy diet: Limit sugary foods and drinks, as they can contribute to tooth decay. See your dentist regularly: Get regular dental checkups and professional cleanings to maintain oral health. Brush your tongue: Brushing your tongue helps remove bacteria and freshen breath. Consider an electric toothbrush: Electric toothbrushes can help with brushing technique and reach more areas.