It is because since your upper and lower teeth are out of line of mastication or very sharp.Hence you are experiencing irritation while mouth closure.
This is called cheek bite.
Next Steps
He should immediately visit a dentist
Health Tips
Avoid very spicy and sour food which can increase the irritation.
Disclaimer : The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding your medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.
Disclaimer : The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding your medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.
Tooth and Mouth
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