Catrherine: thanks for your clarification. i guess I had understood that the original clinical problem with the chomping baby was a situation that caused nipple compression due to oral hypertonicity. Did I misunderstand? i agree about the "biting" action that you describe in this post with tongue-tied babies as a result of tongue retraction (behind lower gumline0 during "sucking". And I agree we need to tighten up the nomenclature. Whatever happened to that committee, i wonder? Alison