Need To Know Coming Up On NTK: Maggie Brooks, "Save Our Youth" & The Teledentistry Impact WXXI News Published June 23, 2015 at 12:05 PM EDT Facebook Twitter LinkedIn Email http://youtu.be/-tnvUCBTfXo Watch Need to Know with host Hélène Biandudi Hofer Thursdays at 8pm on WXXI-TV, Channel 21.1 and Cable 11 or 1221.