Best dentist in Adambakkam | Tongue Posture and Its Role in Facial Development Your tongue posture plays a surprisingly important role in how your face develops. When the tongue rests properly against the roof of the mouth, it supports correct jaw alignment, airway health, and balanced facial growth. Poor tongue posture, often caused by mouth breathing or habits like thumb sucking, can lead to narrow jaws, crooked teeth, and even breathing issues. Early intervention in children can make a big difference, while adults can also benefit from guided therapies. At Dr. Akkshaya Dental & Aesthetics, we help identify and correct tongue posture issues to improve both oral health and overall facial harmony.