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Contact Details

Phone
+64 3 479 7092
Email
george.dias@otago.ac.nz

University Links

Position
Professor
Department
Department of Anatomy
Qualifications
BDS (S Lanka) MS (Dental Surgery), PhD (Otago), Specialist in Dental Surgery PGIM (Colombo)
Research summary
Biomaterials, clinical anatomy and forensic science

Research

The main areas of interest are:

  1. A new bone substitute – currently used bone substitutes eg porous ceramics, hydroxyapatite, metals, and polymers (polylactic acid-polyglycolic acid) have certain disadvantages. Work is in progress to develop a new bone substitute from reconstituted keratin and metal alloys that are biodegradable.
  2. The overall programme goal is to create new biomedical devices combining reconstituted keratin, and a permanent material, such as titanium. The composite devices will create new opportunities for the use in dental and maxillo facial surgery and large bone/joint replacement or reconstruction in orthopedic surgery.
  3. This project will carry out in vitro and in vivo investigations to study the morphological and biological properties of TBC.
  4. Detailed anatomy – Work is in progress to investigate the origin of the auriculotemporal nerve and the morphology of the lateral pterygoid muscle.
  5. Work is in progress to improve the method of facial reconstruction on the skull in the field of forensics and archeology.

The work described in (a) and (b) is being carried out in collaboration with the Canesis Network Ltd and Dr Mark Staiger, University of Canterbury. The work described in (c) is carried out in collaboration with Dr Michael Mucalo, University of Waikato.

Publications

Subasinghe, S. K., Ogbuehi, K. C., Mitchell, L., & Dias, G. J. (2021). Morphological alterations of the cornea following Crosslinking Treatment (CXL). Clinical Anatomy, 34, 859-866. doi: 10.1002/ca.23728 Journal - Research Article

Subasinghe, S. K., Ogbuehi, K. C., Mitchell, L., & Dias, G. J. (2021). Animal model with structural similarity to human corneal collagen fibrillar arrangement. Anatomical Science International, 96, 286-293. doi: 10.1007/s12565-020-00590-8 Journal - Research Article

Ramesh, N., Ratnayake, J. T. B., & Dias, G. J. (2021). Calcium-based ceramic biomaterials. In C. Wen (Ed.), Structural biomaterials: Properties, characteristics, and selection. (pp. 333-394). Duxford, UK: Woodhead Publishing. doi: 10.1016/B978-0-12-818831-6.00011-2 Chapter in Book - Research

Huang, J., Ratnayake, J., Ramesh, N., & Dias, G. J. (2020). Development and characterization of a biocomposite material from chitosan and New Zealand-sourced bovine-derived hydroxyapatite for bone regeneration. ACS Omega, 5, 16537-16546. doi: 10.1021/acsomega.0c01168 Journal - Research Article

Ramesh, N., Ratnayake, J. T. B., Moratti, S. C., & Dias, G. J. (2020). Effect of chitosan infiltration on hydroxyapatite scaffolds derived from New Zealand bovine cancellous bones for bone regeneration. International Journal of Biological Macromolecules, 160, 1009-1020. doi: 10.1016/j.ijbiomac.2020.05.269 Journal - Research Article

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