On February 22, 2020 Dr. Rena D’Souza, of the Office of the Associate Vice President for Research was a guest on Science Friday, a podcast by WNYC Studios, hosted by Ira Flatow. Dr. D’Souza was featured in an episode title, “Ask A Dentist: Brushing Up On Tooth Science.” Science Friday wrote in the notes for the episode, “Ira asks University of Utah researcher Rena D’Souza and UPenn’s Mark Wolff about cavity formation, the oral microbiome, gum disease, and the future of stem cells in teeth restoration. Plus, NYU researcher Rodrigo Lacruz explains new research on how excessive fluoride can disrupt tooth cell functions and why you should still keep drinking that fluoridated tap water.” Be sure to either listen to Dr. D’Souza on the Science Friday website or look for the February 22nd episode of Science Friday wherever you listen to podcasts.