Tongue Thrust During Orthodontic Treatment: Causes and How to Correct It

Hello, during orthodontic treatment, many patients notice that they develop the habit of tongue thrust during orthodontic treatment, even though they had never experienced it before. This is a fairly common issue but is often underestimated. Below, I will explain the causes, its effects, and the appropriate corrective methods from an orthodontic perspective so that you can understand and manage it properly.

Why Are Orthodontic Patients More Prone to Tongue Thrust?

My answer is as follows: tongue thrust during orthodontic treatment usually occurs because changes in tooth position and occlusion cause the tongue to unconsciously adjust its resting position.

During orthodontic treatment, the teeth are continuously moving through different stages rather than remaining stationary. These changes directly affect the available space within the oral cavity, thereby influencing the tongue’s resting position and movement.

Changes in Tooth Position and Occlusion

When the front teeth are retracted, spaces are closed, or the teeth are aligned, the space in the anterior part of the mouth changes. The tongue—accustomed to its previous position—tends to push forward in search of a “point of support”, especially during swallowing or speaking. This is one of the most common mechanical causes observed during orthodontic treatment.

The Tongue’s Unconscious Reflex

The tongue is an extremely flexible muscle with rapid reflexes. When orthodontic appliances are present in the mouth, many patients unconsciously push their tongue against the teeth or brackets to reduce the sensation of bulkiness or discomfort. If this behavior is repeated frequently, it may gradually develop into a tongue-thrusting habit without the patient even realizing it.

Does Tongue Thrust During Orthodontic Treatment Affect the Results?

When it is mild and temporary, tongue thrust during orthodontic treatment usually does not cause serious consequences. However, if it persists and occurs frequently, it can negatively affect the effectiveness of orthodontic treatment.

Some of the effects commonly observed by orthodontists include:

• Slowing the closure of spaces or tooth movement
• Increasing the risk of the front teeth protruding again after braces are removed
• Causing occlusal instability if not properly controlled

In particular, patients with a weaker jawbone foundation or a long-standing tongue-thrusting habit since childhood may generate enough tongue pressure to counteract orthodontic forces.

When Does Tongue Thrust Require Treatment?

The orthodontist will consider intervention when the following signs are observed:

• Frequent tongue thrust during swallowing or speaking
• Difficulty maintaining the position of the front teeth despite multiple finishing adjustments
• Signs of orthodontic relapse or reopening of spaces caused by tongue pressure
• Inability to consciously control the habit despite repeated reminders

In these situations, if not addressed promptly, tongue thrust during orthodontic treatment may compromise the long-term stability of the treatment results after braces are removed.

How to Correct Tongue Thrust During Orthodontic Treatment

Treating tongue thrust is generally not complicated when it is detected early and managed appropriately.

Tongue Position Training Exercises

Orthodontists often recommend simple exercises to retrain the tongue into its proper physiological position, such as:

• Practicing placing the tip of the tongue gently against the palate while swallowing
• Learning to swallow saliva correctly without pushing the tongue forward
• Recognizing and stopping unconscious tongue-thrusting behavior

These exercises should be performed consistently to retrain the tongue’s normal functional reflex.

Supportive Orthodontic Appliances

In certain cases, the orthodontist may recommend a tongue crib or tongue-position training appliance. These appliances are not painful and help to:

• Prevent the tongue from pushing directly against the front teeth
• Establish the habit of maintaining the tongue in the correct position
• Support the long-term stability of orthodontic treatment results

If you notice that you have developed a tongue-thrusting habit while wearing braces or are concerned about maintaining your teeth in their proper position after treatment, you are welcome to visit Gangwhoo Cosmetic Hospital, where our orthodontists will personally examine your condition, assess the cause, and recommend the most appropriate corrective approach for your specific case.