What is mouth breathing?
Mouth breathing simply means breathing through your mouth instead of your nose. In the short term, it may not seem to do much harm, but chronic mouth breathing can seriously affect your oral health. Your nose is built to filter, warm and humidify the air you breathe in, and your mouth can't do any of that. So breathing through your mouth all the time can leave your mouth dry and unhealthy.
How mouth breathing can damage your teeth
The effects of mouth breathing go further than a dry mouth. Here are some of the main ways mouth breathing can harm your teeth and gums:
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A dry mouth and less saliva
Saliva plays a key role in protecting your teeth. It neutralizes acids, washes away bacteria and clears away bits of food. When you breathe through your mouth, it dries out faster and you have less saliva. That raises your risk of tooth decay, because your teeth are exposed to harmful acids and bacteria for longer. -
A higher risk of cavities
Without enough saliva to clean and protect your mouth, bacteria and food stay on your teeth longer. Those bacteria turn sugars into acid, which can wear down your enamel and cause cavities. That's why people who often breathe through their mouth have a higher risk of tooth decay. -
Gum inflammation (gingivitis)
A dry mouth can also lead to inflamed gums. Saliva helps fight harmful bacteria, so without enough of it, bacteria can build up along the gumline. That can lead to gingivitis, which can turn into more serious gum disease if it isn't treated. -
Bad breath (halitosis)
Mouth breathing dries out your mouth, which can contribute to bad breath. Normally, saliva helps wash away the bacteria that cause bad smells. Without enough saliva, those bacteria keep building up, and you end up with an unpleasant smell. -
Shifting teeth and jaw problems
Chronic mouth breathing can even affect the position of your teeth and jaw. In children, it can lead to abnormal jaw development and crooked teeth, which can cause orthodontic problems. Your tongue position plays a big role here: when you breathe through your mouth, your tongue rests lower in your mouth, which can affect how the upper jaw grows.
Why mouth breathing is bad for your oral health
Besides the direct damage to your teeth and gums, mouth breathing affects your overall oral health in other ways too:
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A higher risk of infections: a dry mouth is an environment where bacteria and fungi grow faster, which can lead to oral infections such as thrush (a fungal infection).
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Weaker natural defenses: saliva contains enzymes that help kill harmful bacteria. When you don't have enough saliva, those bacteria get free rein, which raises the risk of infections, tooth decay and gum disease.
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Less fresh breath: without saliva to keep cleaning your mouth, odor-causing bacteria stay behind. The result is worse breath, especially when you wake up.
How can you prevent damage from mouth breathing?
If you notice that you often breathe through your mouth, especially at night, there are a few steps you can take to protect your oral health and your teeth:
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Stay hydrated
Drink enough water so you don't get dehydrated. That helps keep your mouth moist and keeps your saliva flowing. -
Use a humidifier
A humidifier raises the humidity in your bedroom, which can help keep your mouth from drying out as fast while you sleep. -
Try mouth tape
If you notice that you often breathe through your mouth at night, mouth tape can be an effective solution. By gently taping your mouth closed while you sleep, you breathe through your nose, which protects your mouth and teeth better.
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See your dentist regularly
Visit your dentist regularly to keep an eye on your teeth and gums. Your dentist can spot early signs of damage from mouth breathing and give you advice on how to prevent it. -
Practice nasal breathing
Make a habit of breathing through your nose during the day, so it becomes your habit at night too. Nasal breathing is better for your teeth and your overall health.
Mouth breathing can cause more problems than you might think at first, especially when it comes to your teeth. That's why it's important to take steps to protect your oral health. Want to learn more about improving your breathing and supporting your oral health? Find more useful information and tips about nasal breathing and oral health on our website.
Conclusion
Mouth breathing can harm your teeth and gums because it reduces your saliva, and saliva is essential for a healthy mouth. That raises the risk of tooth decay, gum inflammation and even bad breath. Luckily, there are several ways to prevent the negative effects of mouth breathing, like training yourself to breathe through your nose and seeing your dentist. Small changes to your daily habits can make a big difference to your oral health.
