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Dysfunctio orofacialis
The nose must be clear first — as long as breathing goes through the mouth, neither exercises nor braces hold.
Also known as: orofacial myofunctional disorder · tongue thrust · atypical swallowing · open mouth posture · mouth breathing · low tongue posture · open bite
Open in the tool — with search and all the links →This compilation is for information and replaces neither medical diagnosis nor treatment. If you have symptoms, see a doctor.
At rest the tongue tip belongs on the palate behind the upper front teeth, the lips close without effort, and breathing goes through the nose. In an orofacial myofunctional disorder this interplay is off: the tongue sits low or pushes against the teeth when swallowing, the mouth stands open, and air takes the route through the mouth instead of the nose. Because a child swallows many hundreds of times a day, even small forces act over years — the bite shifts, an open bite can develop, and after orthodontic treatment the teeth drift back if the tongue keeps pushing against them. Often added to this are unclear articulation, especially S and SH, a dry mouth with more decay and irritated gums, and restless sleep with snoring and daytime tiredness. The order matters: first the cause is clarified — enlarged adenoids or tonsils, a chronically blocked nose, an allergy, or long dummy and thumb sucking. As long as the nose is not clear, no child can keep the mouth shut, and any exercise falls flat. Once the airway is open, muscle function is trained: tongue posture, lip closure, swallowing pattern, nasal breathing. Best of all is when orthodontics, speech therapy and ENT work together — that trio decides the long-term outcome. It is not a disease in the narrow sense but an ingrained movement pattern — and for that very reason it can be changed at any age. Adults are affected too, often around snoring and sleep apnoea. It is nothing to be ashamed of: a habit, not a matter of character.
ENT check for enlarged adenoids or tonsils and a chronically blocked nose. No clear nose, no lip closure.
A permanently swollen nasal lining, from dust mites or pollen for instance, keeps the mouth open.
Straightening teeth and retraining muscles belong together. Otherwise the result does not hold.
Short exercises, but daily and over months. What counts is the new posture slipping into everyday life.
The longer the sucking lasts, the more palate and bite adapt to it. Weaning goes better with support.
Snoring, breathing pauses, sweating, bedwetting or daytime tiredness belong to the paediatrician or ENT.
Where saliva is missing, decay and gum inflammation rise. Regular checks and good brushing count double here.
A retainer alone will not hold against a pushing tongue. Muscle function is what secures the result.
Two to three minutes several times a day beats one long weekly session. Muscles learn through repetition, not through strain.
Lip closure can still be trained later in life. With night-time breathing pauses or heavy daytime sleepiness, add a sleep assessment.
Remind rather than scold, praise rather than correct. A child does not choose this pattern — it was learned and can be relearned.
There is no drug. What works is exercise with a clear aim: the tongue resting at the palate, lips closed, nose breathing, correct swallowing — five to ten minutes daily over three to six months. These exercises have also been studied in mild sleep apnoea and there lowered the breathing pauses measurably. Without a clear nose it does not work: if tonsils, adenoids or a narrowed nose are the reason, that is looked at first.
At rest the tongue normally lies against the palate, and swallowing happens about six hundred to two thousand times a day — with a wrong pattern the tongue pushes against the teeth each time, and over years that adds up to a shift in tooth position. Mouth breathing dries the lining and raises the risk of decay measurably. An exercise programme runs five to ten minutes daily over three to six months. Without free nose breathing it does not work.
Also during the day while playing, reading or watching. The lips do not rest closed on their own.
Dry lips, dry mouth, often a permanently blocked nose — the reason usually sits higher up.
Visible while drinking: the tongue tip shows between the rows of teeth, the lips press along.
An open bite at the front or a relapse after braces are typical pointers to a muscular share.
Where the tongue sits wrongly, sibilants change. Articulation and muscle function are directly linked.
Regular snoring in children is never merely cute — it deserves a medical look.
Gums that bleed at the lightest touch are among the first signs of a lack. It is rare today but occurs with a very one-sided diet and with alcohol.
Recurring mouth ulcers, a smooth burning tongue and cracked corners of the mouth point to a lack — the mouth often shows this before the blood count does.
The jawbone that holds the teeth undergoes the same building up and breaking down as any other bone. What counts for the hip counts for it.
Saliva is the natural protection of teeth and lining. A dry mouth — from medicines, mouth breathing or drinking too little — raises caries, bad breath and fungal growth all at once.
The tongue exercises run into nothing as long as the nose is not clear. Enlarged adenoids, a deviated septum or a permanently swollen nasal lining are the commonest reasons for the open mouth — and the open mouth is the cause of the tongue position, not the other way round.
With constant mouth breathing the oral lining is dry and the enamel less protected — decay increases. Vitamin D and calcium are here the groundwork for the tooth; but they replace neither nasal breathing nor brushing.
Clearly worthwhile and well supported when deficient — vegan, older adults, certain drugs. No energy boost without a deficiency.
Constant mouth breathing in childhood changes the growth of the facial skeleton — narrow upper jaw, high palate, longer face. Timing decides: what forms in the growth phase is hard to change afterwards.
Mouth breathing and a poorly positioned tongue often go with disturbed sleep — snoring, restless nights, daytime tiredness. In children that shows not as tiredness but often as restlessness.
Eating mainly soft food gives tongue and chewing muscles little practice. Firm food — raw vegetables, bread crust, a whole apple — is part of the exercise, not only nutrition.
Myofunctional therapy in speech therapy or dentistry practises tongue position, lip closure and nose breathing. It works best while growth is still going on — later it takes more patience.