For IBCLCs looking for wonderful tongue tie assessment tool that includes the full functioning of the mouth and maternal symptoms, here is the Frenotomy Decision-making Tool for Breastfeeding Dyads (FDTBD). Dobrich ACTUAL FDTBD 2016
This assessment tool is comprehensive, easy to follow and is focused on structure and function. Feel free to send this in lieu of a referral.
The scientific article is found here: Dobrich_Srivanasan_ 2006_ Ankyloglossia in breastfeeding infants_ the effect of frenotomy on maternal nipple pain and latch