The scientific research on whether to use mouthwash before or after brushing is limited, and reputable organizations offer different recommendations. However, the National Health Service (NHS) recommends avoiding mouthwash right after brushing, since this may wash away the fluoride from your toothpaste. Instead, the NHS recommends using mouthwash at a different time of day. The Mayo Clinic recommends using mouthwash after brushing and flossing your teeth. The American Dental Association (ADA) states that you may choose to use mouthwash before or after brushing based on personal preference. That said, mouthwash manufacturers may recommend an order based on their products ingredients, so check the label on your product to ensure that you maximize its effects.
In summary, it is best to use mouthwash at a different time of day than brushing, such as after lunch or in the evening. If you choose to use mouthwash after brushing, wait at least 30 minutes after brushing to allow the fluoride in your toothpaste to protect your teeth before using mouthwash.
