It's recommended to replace your toothbrush every three to four months, or sooner if the bristles are frayed or worn. Using a worn toothbrush is less effective at cleaning your teeth and can even damage your gums. Frayed bristles can't effectively remove plaque and bacteria, increasing your risk of cavities and gum disease. When choosing a new toothbrush, select one with soft bristles to avoid damaging enamel and gums. Your "dental arlington" dentist can offer advice on proper brushing technique and the best toothbrush for your needs. Regular replacement is a simple yet vital step in maintaining optimal oral hygiene.