Conversations with Trish De Dios, RDH v.1 (HD 720p) Trish De Dios is a clinical dental hygienist and Regional Coordinator for the Oral Cancer Foundation. These videos are targeted to the dental and hygiene community as a means to educate professionals about oral cancer and the screening process. They are, however, informative for the general public as well. With so much new information coming out as we learn more about HPV and the connection to oral cancer, it can feel overwhelming and you might not even know where to begin. Trish is here to break it down one topic and a time in order to help you better screen and educate patients.