It is not recommended to rinse your mouth with water after you have just used mouthwash. This is because many mouthwashes contain ingredients such as fluoride that need time to start working. If you rinse your mouth out straight after, the fluoride will also be washed away during the rinsing.
General Advice for Using Mouthwash
Swish it around in your mouth for 30 seconds to a full minute. Spit out the mouthwash into the sink after this period of time. Do not reuse mouthwash. If the pungency of the mouthwash seems strong for your mouth, start out by swishing with it for 10 seconds.
Short answer: It doesn't matter. However, if you are using a fluoride toothpaste, wait at least 30 minutes before you rinse (yes, even a fluoride one) as it'll wash away the fluoride from the toothpaste before it can do its job. If you do use a fluoride mouthwash, wait 30 minutes before you eat or drink.
Can You Overuse Mouthwash? One of the main ingredients in mouthwash is alcohol. Alcohol destroys bacteria, but it can also cause harm to your gums, inner cheeks and tongue if over used. The alcohol itself has a drying property that will absorb the moisture from your mouth and cause the affected areas to dry out.
Use a mouth rinse before bed
For an added boost to oral health, consider using a mouthwash or rinse before bed. A rinse will help to remove bacteria from your mouth and can effectively help prevent cavities.
Mouthwash is generally meant to be swished around in the mouth for 30 to 60 seconds. Make sure you follow the directions on your specific bottle. Swishing for less than 30 seconds isn't usually enough time for the mouthwash to be effective while swishing for longer than a minute won't give you any additional benefits.
“Unfortunately, mouthwash doesn't differentiate and kills all bacteria. As a result, mouthwash can cause harm in the long run because it can disrupt the microbiome and impede the normal functioning of your body.”
According to the American Dental Association, it doesn't matter whether you use mouthwash before or after brushing. Both are equally effective. The sequence in which you brush, floss and rinse makes no difference as long as you do a thorough job and use quality products.
The 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 product's ingredients, so check the label on your product to ensure that you maximize its effects.
You can use mouthwash prior to brushing to remove any food debris and plaque build-up in your mouth to set yourself up for a good cleaning. One important thing to note is that if you're using fluoride toothpaste, don't use mouthwash for at least 30 minutes after brushing!
You can spit it out as the need may arise. However, eating or drinking for at least 30 minutes is not advisable as it will lead to the washing-off of the mouthwash from the mouth and thus hinder with its efficacy. Also, rinsing with a mouthwash immediately after brushing is also not recommended.
How Long Should You Wait to Rinse After Brushing? If you want to be on the safe side, then you should wait at least twenty minutes before rinsing your mouth after brushing. This gives the fluoride more time to work, which means you have a better chance at cleaning them and preventing tooth decay.
Using a mouthwash that contains fluoride can help prevent tooth decay, but don't use mouthwash (even a fluoride one) straight after brushing your teeth or it'll wash away the concentrated fluoride in the toothpaste left on your teeth. Choose a different time to use mouthwash, such as after lunch.
Mouthwash First
While it may be temping to freshen up with mouthwash before you brush or floss, generally it is better to finish with mouthwash rather than start with it. The reason has to do with the two primary benefits of rinsing with mouthwash.
Mouthwash might seem like a quick and easy solution instead of brushing and flossing before bedtime, but the truth is that it's just not an effective replacement to actually cleaning your teeth.
When it comes to general dentistry, it is recommended that you use mouthwash as part of your daily oral hygiene regimen because it kills the germs left in your mouth after brushing. Most adults use a mouthwash that contains alcohol because they believe it kills germs more effectively than alcohol-free mouthwash.
Unfortunately, when you rinse immediately after brushing, you're washing away a lot of the fluoride in toothpaste before it can strengthen your tooth enamel. To maximize the beneficial cavity-fighting effect of fluoride, spit out excess toothpaste but do not rinse your mouth.
Using mouthwash as a substitute to brushing, or even more often than recommended, may actually cause additional damage. Many mouthwashes contain some level of alcohol. And too much alcohol is bad news for your mouth: It causes decreased saliva production which leads to a super-dry mouth, which means more bacteria.
Mouthwash may actually cause more cavities
First of all, your oral microbiome exists to help support the natural remineralization of your teeth. If you kill all the bacteria in your mouth (both good and bad), you eliminate a critical part of the equation in reversing tooth decay.
It may cause dry mouth. Regular or excessive use of alcohol-based mouthwashes can dry out your mouth, which can lead to tooth sensitivity, bad breath, and even cavities.
While it can depend on the specific mouthwash you use and the advice of your dentist, most mouthwashes should be used no more than twice a day. Make sure to read the label and follow the instructions.
Swish Vigorously
There is no point in just letting your chosen mouthwash sit in your mouth for a few seconds. For it to work effectively, you must ensure that you vigorously swish it around your mouth for at least 30 seconds.
Mouthwash Is a Short-Term Fix
But brush as soon after as you can. And if breath isn't fresh after a good brushing, it typically means it's packed full of bacteria. Mouthwash doesn't remove the sticky plaque and bacteria that only a good brushing and flossing can.
If you accidentally ingest a small amount, don't panic. If it's just a little bit, you'll probably be fine, or your stomach might get a little upset for a short period of time. Call your doctor and check if it will help reassure you. A larger amount should warrant a call to your doctor or the Poison Control hotline.
Dentists say it's good to let the fluoridated toothpaste set in your teeth for a few minutes regardless if you do decide you want to rinse with water or not. While rinsing doesn't harm you, it prevents the toothpaste from working to its best ability.