My camera
My camera is a Nikon 610. Full frame and it is also the camera that I used to do the video that was on the page about Dental Photography.
Lens
I only use the original Nikon lens. Of course, there are less expensive lens (Tamron, Sigma etc) but for me, the lens is even more important than the camera in itself. A macro 105 mm does a great job when we are talking about dental photography.
Flash
Ring flash or twins flash. Lately, I´m using the R1C1 and very happy with the result. You can see the difference in this clinical case.
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Bouncers
A cheap solution that will provide a nice final touch to your dental photos. Try it!
Recommended Software for Dental Photography
You can read this post that I created about Aperture 3 and Final Cut X for more information.
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Aperture 3