HomeWHENWhen Do Babies Start Breathing Through Their Mouth

When Do Babies Start Breathing Through Their Mouth

Open-mouth breathing is breathing through the mouth instead of the nose. In children, open-mouth breathing is most common at night, but it can also occur during the day.

While most of the time mouth breathing occurs because your child is sick or has allergies, it can occur due to more severe issues. If mouth breathing never resolves during childhood, your child can be at risk of developing several serious medical conditions.

Man Sleeping in Bed with Mouth Open - The Super Dentists

My Baby Sleeps Mouth Open – Is This Bad?

In most cases, mouth breathing in children usually occurs when the child suffers from congestion or allergies. This typically clears up on its own.

When children continuously breathe through their mouths, you may notice symptoms such as irritability, cracked lips, and excessive crying in younger children.

When children display frequent open-mouth breathing, it can cause numerous dental health concerns. These dental health concerns include:

  • Enlarged tonsils
  • Enlarged adenoids
  • Temporomandibular disorder of the jaw
  • Erosion of the teeth
  • Teeth grinding
  • Myofascial pain
  • Periodontal disease
  • Impacted teeth
  • Malocclusion
  • Tooth decay
  • Chronic bad breath
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In addition to dental health concerns, open mouth breathing can cause other overall health issues. Your child may also experience these health concerns if they display frequent open-mouth breathing.

  • Dry mouth
  • Drowsiness during the day
  • Headaches
  • Sleep deprivation
  • Restless sleep
  • Poor ability to focus or poor memory
  • Snoring

Child mouth breathing typically occurs at night when the child is sleeping, often indicating a problem in the nasal passages.

If your child is not sick, your child must see their pediatric dentist to help resolve why your child experiences child mouth breathing at night. Children, as well as adults, usually don’t intend on open-mouth breathing. They do it unintentionally because they cannot breathe properly through their nose.

Why Is My Child Breathing Through Their Mouth?

Your child most likely experiences open-mouth breathing because there is an obstruction in their nasal passage. Some common underlying issues your child may breathe through their mouth include:

  • Deviated septum
  • Enlarged vessels, bones, or tissue in their nasal passage
  • Tongue tie

If your child is mouth breathing and does not have a blocked nasal passage, then it could be due to problems with their bite and mouth structure. The shape of your child’s jaw May prevent them from correctly closing their mouths.

Therefore, they breathe out of the mouth because it cannot shut properly.

If your toddler sleeps with their mouth open but breathes through the nose, they do not have an issue with their mouth or bite structure. Instead, they have a blockage in the upper airway, such as their throat or nose.

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How Do You Fix a Child’s Mouth Breathing?

When learning how to stop mouth breathing in a child, you should make an appointment with their pediatric dentist to be evaluated for possible orthodontia. If it is not orthodontia, your child should be evaluated for an evaluation to remove their adenoids and tonsils.

If that is not the case either, have your child evaluated for:

  • Throat or nasal obstruction
  • Allergies
  • Sinus and nasal issues
  • Tongue tie
  • Appropriate weight for their height, as an increased weight can contribute to open mouth breathing

Can Mouth Breathing Cause Behavior Problems?

Open-mouth breathing can cause behavioral problems in children, contributing to their inability to focus, irritability, and lack of sleep. Open-mouth breathing can cause problems in your child’s mental development because if they cannot properly breathe, their brain cannot function correctly.

Some common behavioral health concerns your children might experience due to mouth breathing includes:

  • Slower cognitive development
  • Difficulty concentrating and solving problems
  • Disturbed social and emotional development
  • Possibility of being diagnosed incorrectly with ADHD or ADD
  • Poor school performance

When Can Babies Breathe Through their Mouths?

Open-mouth breathing can occur in babies as young as three to four months old, as they do not develop the reflex to breathe through their mouth until that point. If your baby or young child is mouth breathing at night, it can become a regular habit even when they are awake.

It is especially important to be aware of mouth breathing in babies since it can affect the development of their brains if left untreated.

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Your child is at risk of breathing through the mouth if they suck their thumb or have prolonged use of pacifiers or if they stop breastfeeding or bottle feeding before three months of age.

How Do You Treat Mouth Breathing in Children?

Once you notice symptoms of mouth breathing in your child, make an appointment with their pediatric dentist. The pediatric dentist may need to refer your child to another professional to diagnose why they are breathing through the mouth properly. Some treatment options for mouth breathing in children include:

  • Allergy management
  • Breathing training
  • Surgery to remove enlarged tonsils, adenoids, tongue tie, or deviated septum
  • Weaning of thumb sucking
  • Orthodontic treatment to guide teeth and jaw movements

Can Mouth Breathing Affect a Toddler’s Speech?

If your child breathes through their mouth most of the time, it can affect their speech. Your child is likely to struggle with certain speech sounds or develop a lisp. If your child develops a lisp, they may have difficulty saying the letter “s” properly.

Their speech may be affected by the mouth breathing because it can cause a tongue thrust swallowing pattern. This typically occurs during late childhood, but it is due to your child breathing through their mouth for a long period of time. In severe circumstances, this can also cause trouble with swallowing and make your child more prone to choking.

Final Thoughts

Open-mouth breathing in children can be reversed, but it is essential to take steps to prevent it from happening. If you notice that your child breathes through their mouth, and they are not sick, make an appointment at The Super Dentists to help determine the cause.

Learn more about our Pediatric Dental Services at The Super Dentists. Schedule an appointment today and bring your family to a Super Dentists location near you!

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