Dr. Gerald A. Niznick was the founder and President of Core-Vent Bio-Engineering and Paragon Dental Implant Company (1982 - 2001) which he sold to Zimmer Dental.
The Screw-Vent internal hex implant that he invented in 1986 is still the backbone of Zimmer's dental implant system 25 years later. Barron's Magazine Article on Dental Implant Industry Feb. 15, 2005 referred to Dr. Niznick as "a prosthodontist and entrepreneur who is considered by many as the godfather of American implant dentistry."