… isn’t conclusive data for the healthcare world to act on, largely because the best research – randomized control trials where some babies are treated, and others … are not – can’t be performed. “Ethically, we can't do that,” said Hill, who is also the associate dean for the nursing school’s prelicensure program. “We can't … policy on screening for tongue-tie. Every baby gets a hearing screening. Let's also look in their mouth.” Eventually, Hill hopes the cost to correct tongue-tie can …