10/20/2025
Thumb sucking is a natural reflex that helps babies self-soothe, regulate emotions, and build early oral motor skills.
But if the habit sticks after 3 years old, it can reshape the palate, impact speech sounds, and lead to dental issues like an open bite or overjet.
When to be concerned: If you notice lisps, mouth breathing, or changes in tooth alignment, it might be time to check in.
A pediatric SLP, myofunctional therapist, dentist, and/or orthodontist may need to be seen.
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