tongue-tied

  One doctor has said that the membrane under the tongue is no longer clipped as was done in previous years...our grandson's orthodontist has said that because his tongue membrane was not cut soon enough, he didn't learn to swallow correctly and is now having orthodontal(?) problems.  Our new grand-daughter appears to be "tongue-tied" also and her pediatrician has said it doesn't matter.  Could you please explain this "condition"  so that I can give my son and his wife more information.  They can then make a better decision as to whether or not to further pursue what needs to be done. Thank you.
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Dear Christine :
Ankyloglossia inferior is a common variation in  tongue anatomy . It