Institute of Dentistry

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Dr Graham Davis, BSc(Eng), PhD


Reader in 3D X-ray Imaging

Telephone: +44 20 7882 5967
Room Number: Dental Physical Science, Francis Bancroft Building


Dr Davis graduated as an electronic engineer in 1980 and obtained a PhD in medical electronics in 1984.  After working originally in the design of computerised electromyography apparatus, he moved to the London Hospital Medical College (now part of Queen Mary University of London) in 1988 and shortly thereafter began work on the development of X-ray microtomography (XMT).  Designing scanners and software algorithms with accuracies exceeding commercially available systems, he is well recognised in this area of development and has served on the European Standards Committee CEN/TC 138/WG 1/AH 1 Computed Tomography. He also serves as a program committee member for the "Developments in X-ray Tomography" conference held every 2 years as part of The International Society for Optical Engineering's (SPIE) International Symposium on Optical Science, Engineering, and Instrumentation. Now a Reader in 3D X-ray Imaging, with many international collaborators using his 3D imaging resource, he is still working on the never-ending quest to improve mineral concentration mapping accuracy in biological hard tissue.


Research Interests:

My main research interest is the design and application of advanced X-ray microtomography (XMT or micro-CT) systems.  Unlike commercially available systems, these are optimised to produce high quality images giving an accurate representation of the mineral content in biological hard tissue.  In dentistry for example, these can be used to precisely map and quantify mineral loss and gain in demineralisation and remineralisation respectively.  The high contrast ratio available from these scanners allows us to study small differences in the degree of mineralisation throughout dentine and enamel.  The unique availability of these instruments provides opportunities for clinical staff and research students to be involved in cutting edge research in these areas.

The use of this facility also spans many other disciplines including archaeology, palaeontology, petrology and materials science.  In fact, current EPSRC funding to design and build the next generation of scanning is for a project aimed at reading historical scrolls which are damaged to the point where they cannot be physically opened.  A fascinating project in itself, the technological benefits derived from this will further enhance our on-going dental research.

Selected Publications:

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