The relationship between the camera and the camera is small, and the current one can be NIKON CANON SONY, the entry level is ok. But the camera needs to be special, which means it needs a hundred, or a hundred or a 105, and a little bit of a 55. Buy a 1:1 macro, which means you can take a 1:1 ratio of teeth to teeth. And then there's the lighting problem, the ordinary flash doesn't work, you need a ring of flash, and it's not cheap. Of course, if you're using a professional dental lamp, maybe it's ok, but you're not familiar with it.