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If you are just using the camera for patient education (not storing images), you are generally safe, but check your local regulations.
If you are using a generic USB camera (e.g., from eBay or Amazon) and cannot find the original software, these universal tools can often help you capture images: Useful Download link - ProDENT Intraoral Camera dental usb camera software download
If you have a generic, unbranded camera (sold on Amazon or eBay as "Dental Endoscope 1080P"), your safest bet is to or purchase USB Camera Viewer ($4.99) from the Microsoft Store. These universal tools will turn your cheap hardware into a professional diagnostic station. If you are just using the camera for