![]() ![]() The next image shows a slice through a 3D volume image of a second molar: Each voxel represents the X-ray attenuating property of the corresponding point in the sample being scanned. With microCT, you end up with a complete volume image made up of 3-dimensional pixels, called voxels. That being said, micro-CT scanners are not like the surface scanners that would be more familiar to most people on Sketchfab. But having encountered Sketchfab at a symposium, it was great to discover that someone else had already done the hard work for me. I had expected either to have to learn a whole lot of new programming skills, or else try and get the funding to get someone else to do the VR coding. ![]() This is how I first became interested in Sketchfab. ![]() Micro-CTĪ couple of years ago I started investigating possible use of virtual reality for teaching and public engagement, using it as a means of visualising complex biological structures. ![]() Sometimes I have gone a little “off-piste” and looked at some more exotic things like ancient scrolls and decomposing 16mm film, but most of the work involves looking at tooth and bone samples. The scanners I have designed here are specifically optimised for dental research where we study the processes that go on in teeth when they are subject to things like the acid attack in dental caries, or the reverse process where mineral is reformed in the tooth (we use donated extracted teeth for this purpose). I work on the design and application of micro-CT, a miniaturised form of CT that is used to scan small objects at microscopic scales. I’m not a dentist, my background is in electronic engineering. Hello, I am Graham Davis, Professor of 3D X-ray imaging in the Dental Institute at Queen Mary University of London at their Mile End campus. ![]()
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