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Tongue tie, ankyloglossia , tongue mobility restriction, short frenulum, - all of them are names given to the situation where the newborn or infant’s tongue does not have enough range of motion to attach to the breast, suckle and swallow efficiently. It is a congenital anomaly characterized by an abnormally short lingual frenum, which may restrict tongue tip mobility. Tongue tie definitions range from vague descriptions of tongue that functions with a lesser-than-normal range of movement to a more specific variety of the frenum being short, thick, muscular, or fibrotic. Classification of Ankyloglossia by Kotlow based on “Free Tongue” Length Clinically accepted, normal range of free tongue=>16 mm Class I: mild ankyloglossia=12-16 mm Class II: moderate ankyloglossia=8-11 mm Class III: severe ankyloglossia=3-7 mm Class IV: complete ankyloglossia=<3 mm Causes A lingual frenulum (connective membrane under the tongue) that is either too short or too ...