You composed the shot perfectly, nailed the exposure, and captured the shade. Then the lab receives an image that looks nothing like the tooth in the chair. Before you blame the camera, look at the screen you trusted. An uncalibrated monitor quietly corrupts everything you...
A neural network can now look at a periapical radiograph and tell you, in the instant it is captured, whether it is diagnostic. What it means when the image acquires its own critic....
For a hundred years the dental radiograph has been an average — a blur of charge summed across an exposure. The photon-counting detector refuses to average. It counts each X-ray individually, and in doing so quietly rewrites what a diagnostic image can be....
A dental radiograph looks like a photograph, but it is really a measurement — a shadow cast by an X-ray beam onto a flat receptor. Whether that shadow reports a root's true length or a convincing lie depends almost entirely on geometry, and on the...
At the magnifications clinical photography demands, sharpness is not a plane but a sliver — often shallower than a single tooth is deep. Everything that makes a dental image trustworthy begins with a decision about the aperture, and everything the aperture cannot solve, focus stacking...
On the monitor a digital impression is seductive: clean, colour, rotatable, apparently perfect. But a scan that looks perfect and a scan that is accurate are not the same claim, and the gap between them is where restorations quietly fail....
A handheld X-ray unit is a beautiful piece of engineering, and it puts the source of the beam in the operator's own hand. The image it makes is identical to the wall-mounted tube's. The dose it delivers to the person holding it is not....