Delta Dental

Delta Dental is the largest dental plan system in the United States, also known as Dental Service of Massachusetts.[https://www.dentistrytoday.com/news/todays-dental-news/item/3658-massachusetts-dentists-continue-battle-against-delta-dental Davis M.W. Massachusetts Dentists Continue Battle Against Delta Dental. Dentisty Today. Wikipedia*

On the C-SPAN Networks:
Delta Dental has hosted 1 event in the C-SPAN Video Library; the first program was a 2017 Forum.