 The review states that Price's work has been well discussed and has not been covered up, and notes that although Price's theories were later supplanted by subsequent research that found endodontic treatment is safe and effective, his focus on the biology of teeth and infection is still relevant in modern dentistry, as some clinicians have placed more emphasis on technology and poorly tested procedures for the treatment of infected teeth.Price is credited with much of the development of holistic dentistry.The Price-Pottenger Nutrition Foundation (PPNF), a non-profit organization established in 1952, with a membership of 28 dentists as of 2008, maintains an archive of Price's manuscripts and photographs and espouses principles of holistic medicine.