Mouth Breathing & Orthodontics | Citrus Heights & Fair Oaks
Does your child breathe through their mouth? Learn about mouth breathing, jaw development, dental arches and when an orthodontic or medical evaluation may be appropriate.
Airway-Mouth Breathing & Orthodontics: What Parents Should Know
Mouth Breathing Is a Sign Worth Paying Attention To
Occasional mouth breathing is normal. A child may temporarily breathe through their mouth when they have a cold, allergies, nasal congestion or during physical activity.
The question becomes more important when mouth breathing is persistent or habitual.
Parents may notice that their child frequently sits, plays or sleeps with their mouth open, has difficulty breathing comfortably through the nose, or regularly wakes with a dry mouth.
Mouth breathing itself is not a diagnosis. It is a breathing pattern that can have many possible causes.
That makes the most important question:
Why is this child breathing through their mouth?
At DeLurgio Orthodontics, Dr. Andrea DeLurgio considers mouth breathing as one part of a broader orthodontic evaluation of the teeth, jaws, dental arches and oral function.
What Is Mouth Breathing?
Mouth breathing occurs when a person breathes through the mouth rather than primarily through the nose.
Temporary mouth breathing is common and does not necessarily indicate a problem.
Persistent mouth breathing, however, may deserve further attention—particularly when it occurs alongside other concerns involving nasal breathing, oral posture, dental development or sleep.
A child who mouth-breathes may have:
- Frequent open-mouth posture
- Difficulty maintaining comfortable lip closure
- Difficulty breathing comfortably through the nose
- A dry mouth
- Persistent nasal congestion
- Open-mouth sleeping
- Snoring or restless sleep
These observations do not identify the cause by themselves.
Why Do Children Mouth-Breathe?
There is no single cause of mouth breathing.
One common consideration is difficulty breathing comfortably through the nose.
Potential contributors may include:
- Seasonal or environmental allergies
- Chronic nasal congestion
- Frequent illness
- Enlarged tonsils or adenoids
- Nasal or sinus-related conditions
- Anatomical differences
- Other medical conditions
Mouth breathing can also become a persistent habit after a period of nasal obstruction.
In some children, mouth breathing may occur alongside differences in oral posture, dental arch development or facial anatomy.
Because several factors can overlap, it is important not to assume that the breathing pattern itself tells us what is causing it.
Nasal Obstruction vs. Orthodontic Anatomy
This distinction is particularly important when evaluating a child who mouth-breathes.
An orthodontist can evaluate structures relevant to orthodontic development, including:
- Upper and lower dental arches
- Palatal shape
- Tooth position
- Dental crowding
- Bite relationships
- Upper and lower jaw relationships
- Available oral space
- Lip and tongue posture
- Facial development
An orthodontic examination, however, does not replace a medical evaluation of the nose or upper airway.
If nasal obstruction is suspected, a pediatrician, primary care physician or ENT may need to evaluate possible medical causes.
The orthodontic evaluation and medical evaluation answer different questions.
Can Mouth Breathing Affect Dental or Facial Development?
This is one of the most common questions parents have.
During childhood, the jaws, dental arches, palate, tongue, lips and facial structures are developing at the same time.
A persistent change in oral posture may be relevant to that developing system, particularly when it occurs alongside other orthodontic findings.
However, facial growth is complex.
It would be inaccurate to assume that mouth breathing automatically causes a specific facial pattern, crowded teeth or a particular jaw relationship.
Children develop differently, and many factors contribute to facial and dental development.
Instead of assuming that mouth breathing caused an orthodontic problem, a better approach is to ask:
Does the child’s breathing pattern occur alongside dental, jaw or oral-development findings that deserve attention?
That is something an orthodontic evaluation can help determine.
Signs Parents May Want to Discuss With a Professional
Mouth breathing may be more important to investigate when it is persistent or occurs alongside other symptoms.
During the Day
Parents may notice:
- Frequent open-mouth posture
- Difficulty keeping the lips comfortably together
- Difficulty breathing comfortably through the nose
- Persistent congestion
- Dry mouth
- Changes in oral posture
During Sleep
Parents may notice:
- Sleeping with the mouth open
- Regular snoring
- Restless sleep
- Frequent changes in sleeping position
- Gasping
- Pauses in breathing
Orthodontic Findings
A child may also have:
- Significant dental crowding
- A narrow upper dental arch
- A crossbite
- A narrow or high palate
- An unusual bite relationship
- A jaw discrepancy
These signs do not diagnose a breathing or sleep disorder.
They simply provide reasons to consider the child’s overall health and development more carefully.
Why Would an Orthodontist Evaluate a Child Who Mouth-Breathes?
An orthodontist may be able to determine whether mouth breathing occurs alongside an orthodontic concern.
Dr. DeLurgio can evaluate:
- Dental alignment
- Dental arch development
- Bite
- Upper and lower jaw relationships
- Palatal anatomy
- Facial development
- Oral posture
- Available oral space
The goal is not to assume that every child who mouth-breathes needs orthodontic treatment.
Depending on the findings, the appropriate recommendation could be:
- Continue monitoring growth
- Begin orthodontic treatment
- Address a specific bite or dental problem
- Evaluate dental arch development
- Seek additional medical evaluation
- Coordinate orthodontic and medical care
Why an ENT or Pediatrician May Also Be Important
If a child has difficulty breathing comfortably through the nose, it is important to consider potential medical causes.
A pediatrician or ENT may evaluate concerns such as:
- Chronic nasal congestion
- Allergies
- Nasal obstruction
- Enlarged tonsils or adenoids
- Recurrent respiratory symptoms
- Other medical conditions affecting nasal breathing
This is why mouth breathing should not automatically be treated as an orthodontic problem.
The orthodontist evaluates the orthodontic picture. The medical provider investigates potential medical causes.
Sometimes both perspectives are necessary.
What Can Orthodontics Do?
Orthodontics can address dental and jaw-development problems that may occur alongside mouth breathing.
Depending on the patient’s diagnosis, treatment may include:
- Monitoring growth
- Correcting a crossbite
- Addressing significant crowding
- Developing a constricted dental arch when clinically appropriate
- Creating space for permanent teeth
- Correcting certain bite or jaw discrepancies
In some patients, correcting an orthodontic problem may affect available oral space or function.
However, treatment should be recommended because of an individual orthodontic diagnosis, not simply because a child breathes through their mouth.
What Can’t Orthodontics Do?
Orthodontics cannot determine every cause of mouth breathing.
An orthodontist cannot independently determine whether nasal breathing difficulty is caused by:
- Allergies
- Enlarged adenoids
- Enlarged tonsils
- Chronic nasal inflammation
- Nasal obstruction
- Another medical condition
Similarly, orthodontic treatment should not be presented as a guaranteed way to eliminate mouth breathing or prevent a sleep disorder.
When a medical cause is suspected, appropriate medical evaluation remains important.
What a DeLurgio Orthodontic Evaluation Can Help Determine
If mouth breathing is one of the reasons you are seeking an orthodontic evaluation, Dr. DeLurgio can help assess the orthodontic aspects of your child’s development.
The evaluation may help answer:
- Is the upper dental arch developing appropriately?
- Is there significant narrowing?
- Is there a crossbite?
- How are the upper and lower jaws related?
- Is there significant crowding?
- How are the permanent teeth developing?
- Are there oral-posture findings that are relevant to the orthodontic picture?
- Is orthodontic treatment appropriate now?
- Would observation be more appropriate?
- Should additional medical evaluation be considered?
An evaluation does not automatically mean treatment is necessary.
Sometimes the best recommendation is simply to observe growth.
Mouth Breathing: A Team Approach
Breathing concerns can involve several areas of healthcare.
Depending on the individual situation, a child may benefit from evaluation by:
Orthodontist
Evaluates dental arches, bite, jaws, facial development and oral structures.
Pediatrician or Primary Care Physician
Evaluates the child’s overall health and symptoms.
ENT
Evaluates potential nasal and upper-airway causes of breathing difficulty.
Allergist
May be involved when allergies or chronic inflammatory symptoms are suspected.
Sleep Specialist
May be appropriate when symptoms suggest a possible sleep-related breathing disorder.
The goal is not to have one professional answer every question.
The goal is to make sure each aspect of the child’s health is evaluated by the appropriate professional.
Concerned About Your Child’s Mouth Breathing?
Schedule a Comprehensive Orthodontic Evaluation.
Have questions about your child’s mouth breathing, dental development, jaw growth or orthodontic needs? Dr. Andrea DeLurgio can evaluate the orthodontic aspects of your child’s development and help determine whether additional evaluation may be appropriate.
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