A digital camera (eg Canon EOS 80D) with a macro ring flash (eg Canon MR14EX II) and one slave flash (eg Canon Speedlite, 430 EX III RT) is required (Figure 1)..

By placing buttons on the opposite surfaces of a rotated anterior tooth (Figure 1a) and attaching the buttons with powerchain (Figure 1b) to the adjacent teeth attachments, a rotated tooth can be...

The engagement of the omega loop into the tube of the second molar compresses the open vertical loop, and so the deactivation of the open loop distally drives the second molar. The 20° bend produces a...