Global Dental X-ray Generators Market By Type (Intraoral X-Rays: Bite-Wing X-Rays, Periapical X-Rays, Occlusal X-Rays, Extraoral X-Rays: Panoramic X-Rays, Tomograms, and Cephalometric Projections), By Application (People Use, and Veterinary), By Region and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2019-2028