Mouth Breathing in Children: Could It BeAffecting Their Face?

Does your child often sleep with their mouth open? Do they breathe through their mouth insteadof their nose—even when they aren't sick?

Many parents consider it a harmless habit.

But persistent mouth breathing in children can sometimes be a sign that something is makingnormal nasal breathing difficult.

And when mouth breathing continues for a long time during childhood, it may be associated withchanges in oral posture, dental development and facial growth.

At Dr Rawal Dental Centre, Dr. Shipra Rawal believes that parents should know the difference betweenan occasional habit and a breathing pattern that deserves professional evaluation.

What Is Mouth Breathing?

Ideally, we breathe primarily through the nose.

Mouth breathing occurs when a child regularly breathes through their mouth instead of—or inaddition to—breathing through their nose.

It can happen temporarily when a child has:

A cold

Nasal congestion

Allergies

A blocked nose

But if a child continues to breathe through their mouth even when they aren't congested, it may beworth finding out why.

Why Does a Child Start Mouth Breathing?

There can be several reasons.

Common causes include:

Nasal blockage

A blocked or restricted nasal airway can make nose breathing difficult.2

Enlarged adenoids or tonsils

Enlarged adenoids or tonsils can contribute to airway obstruction and may encourage a child to breathethrough their mouth.

Allergies

Persistent nasal allergies can cause congestion and make comfortable nasal breathing difficult.

Deviated nasal structures or other airway issues

Structural factors can sometimes interfere with normal nasal airflow.

Habit

Sometimes mouth breathing can continue even after the original nasal obstruction has improved.

The important point is that mouth breathing is a behaviour or symptom, not necessarily the rootcause.

The cause needs to be identified.

Can Mouth Breathing Affect a Child's Face?

This is where the topic becomes particularly important for parents.

Children's facial bones and jaws are developing throughout childhood.

Normal growth is influenced by genetics, muscle function, breathing patterns, tongue posture andother factors.

Persistent mouth breathing can be associated with changes in oral and facial muscle posture.

A child who habitually keeps their mouth open may have:

Lips that remain apart at rest

A lower tongue resting position

Changes in the balance of muscles around the mouth

Altered dental development

Increased tendency toward certain bite problems

Some children who chronically mouth-breathe may develop a longer or narrower facial appearance, butnot every child who mouth-breathes will develop these changes.

Facial growth is complex and influenced by many factors.

That's why early assessment matters more than trying to predict a child's facial appearance from onesymptom.3

What Does Mouth Breathing Have to Do With Teeth?

A child's tongue normally plays an important role in the development and positioning of the teeth.

When breathing through the mouth becomes habitual, the resting position of the tongue, lips and jawmay change.

Over time, this can be associated with certain orthodontic problems, such as:

Crowded teeth

Increased overjet

Open bite

Narrow upper dental arch

Crossbite

Altered bite relationships

Again, these problems don't occur in every mouth-breathing child.

But persistent mouth breathing can be one of several factors worth considering when evaluating achild's dental and facial development.

Look at How Your Child Sleeps

Sometimes the signs are easier to notice at night.

Ask yourself:

Does my child sleep with their mouth open?

Do they snore regularly?

Do they seem restless while sleeping?

Do they wake up with a dry mouth?

Do they frequently sleep with their head tilted or neck extended?

Do they seem tired or irritable during the day despite apparently getting enough sleep?

These signs don't necessarily mean your child has a serious problem.

But persistent snoring or disrupted breathing during sleep deserves discussion with a healthcareprofessional.

Mouth Breathing and Snoring: Are They the Same?

No.

A child can mouth-breathe without significant snoring, and snoring can have different causes.4

However, persistent snoring in children should not automatically be dismissed as normal.

If your child snores regularly, particularly if you notice pauses in breathing, gasping, restless sleep ordaytime symptoms, speak with your pediatrician or an appropriate airway/sleep specialist.

Does Mouth Breathing Affect Sleep?

It can be associated with sleep-disordered breathing, although mouth breathing by itself does notestablish a diagnosis.

Children with significant airway obstruction may have disrupted sleep.

Parents may notice:

Snoring

Restless sleep

Frequent waking

Mouth breathing

Daytime tiredness

Difficulty concentrating

Irritability or behavioural changes

These symptoms can have many causes, so professional evaluation is important rather than assumingmouth breathing is the sole explanation.

What Can Parents Do?

The first step is not to simply tell the child, "Close your mouth."

If your child is breathing through their mouth because their nose is blocked, asking them to breathethrough their nose won't solve the underlying problem.

Instead, consider getting the cause evaluated.

Depending on the symptoms, assessment may involve a:

Dentist or pediatric dentist – to assess teeth, bite, oral posture and dental development.

Pediatrician – to evaluate the child's overall health and symptoms.

ENT specialist – particularly when persistent nasal obstruction, enlarged adenoids/tonsils or otherairway concerns are suspected.

In some children, a multidisciplinary approach may be appropriate.

Can Mouth Breathing Be Corrected?

Often, the first step is identifying and addressing why the child is mouth breathing.5

Treatment depends entirely on the cause.

For example, treatment may involve managing allergies or nasal obstruction, addressing enlargedadenoids or tonsils when appropriate, or evaluating dental and orthodontic development.

Some children may also benefit from assessment of tongue posture and oral muscle function byappropriately trained professionals.

The goal isn't simply to make a child "stop opening their mouth."

The goal is to help the child breathe comfortably and support healthy oral andfacial development.

When Should Parents Get Their Child Checked?

Consider seeking professional evaluation if your child:

Mouth-breathes regularly

Sleeps with their mouth open most nights

Snores frequently

Has persistent nasal congestion

Has recurrent nasal obstruction

Has a narrow upper jaw or significant dental crowding

Has an unusual bite

Has difficulty keeping their lips comfortably together at rest

Frequently wakes with a dry mouth

Has restless sleep

Shows possible signs of disrupted breathing during sleep

If you notice pauses in breathing, gasping or struggling to breathe during sleep, seek medicalevaluation promptly.

Don't Wait Until the Teeth Are Fully Developed

One of the biggest advantages of observing children's oral development early is that you have time toidentify potential problems.

A child's face and jaws are developing throughout childhood.

That doesn't mean every mouth-breathing child needs orthodontic treatment.

It means that persistent mouth breathing is worth understanding rather than simply accepting asa habit.

A dental check-up can be a useful part of that assessment.

The Question Isn't Just "Why Is My Child's Mouth Open?"

It's:6

"Why does my child need to breathe through their mouth?"

Sometimes, the answer is temporary.

Sometimes, it may be allergies or nasal congestion.

Sometimes, enlarged adenoids or tonsils or another airway issue may be involved.

And sometimes, a habit continues after the original problem has resolved.

The sooner the underlying reason is identified, the sooner the appropriate professional can decidewhether anything needs to be done.

At Dr Rawal Dental Centre, Dr. Shipra Rawal can assess your child's teeth, bite, oral posture anddeveloping facial structures and help determine whether further evaluation may be appropriate.

Because when it comes to a growing child, the way they breathe can be worthpaying attention to.

Don't just notice the open mouth. Look for the reason behind it.

Frequently Asked Questions

Is mouth breathing normal in children?

Occasional mouth breathing during a cold or temporary nasal congestion is common. Persistent mouthbreathing when a child is otherwise well may warrant professional evaluation.

Can mouth breathing change a child's face?

Persistent mouth breathing can be associated with changes in oral posture and certain patterns ofdental and facial development. However, facial growth is influenced by many factors, so mouthbreathing does not automatically mean a child will develop facial changes.

Does mouth breathing cause crooked teeth?

Mouth breathing may be associated with certain orthodontic problems, including crowding, open bite,crossbite or changes in the width of the dental arch. It is one of several factors that can influence dentaldevelopment.

Why does my child sleep with their mouth open?

Possible reasons include nasal congestion, allergies, enlarged adenoids or tonsils, structural nasalissues, sleep-related airway problems or an established mouth-breathing habit.

Should I see a dentist for my child's mouth breathing?

A dentist or pediatric dentist can evaluate your child's teeth, bite, oral posture and dental development.If an airway or nasal problem is suspected, your child may also need evaluation by a pediatrician or ENTspecialist.

Is mouth breathing linked to snoring in children?

Mouth breathing and snoring can occur together, particularly when nasal or upper-airway obstruction ispresent. Regular snoring in a child should be discussed with a healthcare professional.

Can mouth breathing affect sleep?

Persistent mouth breathing can occur alongside sleep-disordered breathing, but mouth breathingalone does not diagnose a sleep disorder. Children with regular snoring, breathing pauses, gasping ordisrupted sleep should be medically evaluated.

Can a child outgrow mouth breathing?

That depends on the cause. If mouth breathing is related to temporary congestion, it may resolve. If anunderlying nasal, airway, dental or habitual factor persists, professional evaluation may be needed.

Dr. Shipra RawalDr Rawal Dental Cent