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Noticing a bony or unusual growth inside the mouth can be alarming, especially when it appears suddenly or becomes noticeable when speaking or eating. In the image above, the growth under the tongue appears to be two symmetrical bony protrusions on the inner side of the lower jaw. While this can look frightening at first, dentists say this type of growth is often a benign condition called Torus Mandibularis.
Many people have this condition without realizing it, and in most cases it does not pose a serious health risk. However, understanding what it is and when to see a dentist is important.
What Is Torus Mandibularis?
Torus Mandibularis is a harmless bony growth that forms on the inner side of the lower jaw, usually underneath the tongue.
According to the Cleveland Clinic, these growths are:
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Non-cancerous
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Made of normal bone tissue
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Often symmetrical on both sides of the jaw
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Slow growing over time
Many people only notice them when:
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Looking closely in a mirror
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Visiting a dentist
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Feeling the area with their tongue
Because they grow near the tongue, they can look dramatic in photos even though they are quite common in adults.
What Causes This Condition?
Doctors and dental experts are still studying the exact cause, but several factors may contribute.
Possible causes include:
Genetics
People with family members who have oral bone growths may be more likely to develop them.
Teeth Grinding or Jaw Stress
Excess pressure from clenching or grinding teeth can stimulate bone growth.
Diet and Bone Density
Some research suggests diets rich in calcium and minerals may influence bone development in the jaw.
Natural Bone Variation
In many cases, it simply occurs as a normal variation of jaw anatomy.
The National Institutes of Health notes that oral tori are relatively common and usually discovered during routine dental exams.
Symptoms People May Notice