Does mouth breathing cause a retracted chin? Children need to pay special attention

Does mouth breathing cause a retracted chin? Children need to pay special attention

Review expert: Peng Guoqiu, deputy chief physician of the Fourth Medical Center of the General Hospital of the Chinese People's Liberation Army

Many people have heard of the sayings that habitual mouth breathing may affect one's appearance? A receding chin is a characteristic of "adenoid facies". Some people believe that this phenomenon is more prominent in children and adolescents because their facial bones and soft tissues are in the development stage.

Why does mouth breathing occur?

Mouth breathing is the abbreviation of breathing with the mouth open during sleep. Normally, the human body breathes through the nasal cavity. However, children are prone to upper airway diseases, which can cause partial or complete obstruction of the nasal cavity and reflexive mouth breathing.

What you need to focus on when breathing from the mouth is not the "opening of the mouth" itself, but the "stuffy nose". You need to find and solve the cause of the "stuffy nose".

It is reported that the incidence of mouth breathing in children ranges from 4.3% to 45.9%. In theory, any factor that causes upper airway obstruction can be the cause of mouth breathing, such as rhinitis, hypertrophy of nasal concha, deviated nasal septum, nasal polyps, hypertrophy of tonsils, hypertrophy of adenoids, etc. Among them, hypertrophy of tonsils and hypertrophy of adenoids are the most common causes of mouth breathing in children.

What is adenoid hypertrophy?

Adenoids are a type of lymphatic tissue similar to tonsils, also known as pharyngeal tonsils. They are located at the end of the nasal cavity, above the mouth, in a place called the nasopharynx, and are shaped like half an orange.

Adenoids exist at birth, grow most obviously at the age of 6 to 7, and gradually shrink after the age of 10.

It is part of the human immune system and helps the body defend against invading bacteria and viruses, and plays an important role in fighting respiratory infections. Sometimes it can also grow and enlarge due to repeated infections or overactivity.

Although enlarged adenoids cannot be seen directly, they will form an "adenoid facies" on the face.

Image source: Science Popularization China

Enlarged adenoids cause long-term mouth breathing, and the airflow impacts the hard palate, resulting in a characteristic facial appearance such as elongated maxilla, retracted chin, high arched hard palate, uneven and protruding teeth, and thick lips, which is called adenoid facies.

Adenoid facies are not necessarily caused entirely by adenoid hypertrophy. Chronic rhinitis and tonsil hypertrophy can also lead to mouth breathing and adenoid facies. Family heredity and personal development can also affect the face.

What should we do if children breathe through their mouths? If you suspect your child has mouth breathing, it is recommended that you visit an ENT department for a comprehensive evaluation by a specialist. The doctor will ask about the medical history in detail, especially the sleep-related conditions, and conduct a comprehensive physical examination, focusing on the nasal cavity, posterior pharyngeal wall, tonsils, etc. If necessary, nasopharyngeal endoscopy, polysomnography and other examinations will be performed to provide a comprehensive diagnosis and treatment advice.

Mouth breathing ≠ enlarged adenoids

Adenoid hypertrophy is the most common cause of mouth breathing in children, but even though it is common, it is not the only cause. Other mucosal causes such as allergic rhinitis and chronic sinusitis are also increasing in incidence among children year by year.

We must analyze the causes of mouth breathing and carry out targeted treatment based on the causes to achieve the best results, rather than just focusing on adenoids hypertrophy.

Adenoids hypertrophy ≠ adenoidectomy

If it is diagnosed that mouth breathing is indeed caused by adenoids hypertrophy, adenoidectomy is not necessarily required immediately. Adenoidectomy has its corresponding surgical indications.

If a child holds his breath as soon as he lies down, cannot sleep at all, and has recurrent sinusitis and otitis media due to enlarged adenoids, adenoidectomy is recommended; but if the enlarged adenoids have not caused severe nasal congestion and has not caused recurrent infections, conservative treatment can be considered first. If conservative treatment is ineffective, adenoidectomy can be considered.

In short, if you find that your child always breathes through the mouth, you must not turn a blind eye, but don't be overly anxious. A specialist will evaluate and find out the cause of mouth breathing, and provide targeted treatment so that your child can grow up beautifully and healthily.

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