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Institute of Dentistry

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Glass-ceramics for biomedical applications

Associated Centre/s: Oral Growth and Development

Associated Research: Caries, Hard Tissues and Materials Research

Research Programme Funder: Den-Mat Holdings, Barts and the London Charity, American Thermocraft, Ivoclar-Vivadent.

This research group explores new glass/glass-ceramic compositions and methods of processing them to produce unique microstructures. The researchers active in this group comprise: Dr Michael Cattell, Dr Natalia Karpukhina, Professor Robert Hill and Dr Rory Wison.

Synthesis of novel glasses
Synthesis of novel glasses

This group has led research into the synthesis of novel glasses and the nucleation and controlled crystal growth of new leucite and diopside glass-ceramics demonstrating the ability to predict and control their properties. Work led a high Strength/low Wear leucite glass- ceramic for the Dental Industry “Lumineers®”. Leucite glass-ceramic material (Lumineers®) was awarded top cosmetic product by the Dental Advisor (2009). Rated excellent by the Clinical Research Associates who evaluate products for the dental profession.

Lumineers 2 high strength low wear crown and veneer material developed by in the Institute of Dentistry
Lumineers 2 high strength low wear crown and veneer material developed by in the Institute of Dentistry

 

The group are currently focused on three main areas:

  • Synthesis of Novel glasses and high strength glass-ceramics.
  • Diopside glass-ceramics for YTZP ceramics.

Processing of glass-ceramics using Spark Plasma Sintering and Heat extrusion to create unique microstructures.

Research

Tooth wear quantification against ceramics using profilometry
Tooth wear quantification against ceramics using profilometry
Synthesis of nano scale glass ceramics
Synthesis of nano scale glass ceramics
Graduated microstructures using Spark Plasma Sintering
Graduated microstructures using Spark Plasma Sintering

Key Publications

Chen, X.I., Chadwick, T.C., Wilson, R.M., Hill, R. and Cattell, M.J. Crystallization of High Strength-Fine-Sized Leucite Glass-Ceramics. J Dent Res, 2010, 89, 1510-1516.

Theocharopoulos A., Zou, L., Hill, R., Cattell M.J.  Wear quantification of human enamel and dental glass–ceramics using white light profilometry. Wear, 2010, 269, 930-936.

Chen, X.I., Chadwick, T.C., Wilson, R.M., Hill, R. and Cattell, M.J. Crystallization and flexural strength optimization of fine-grained leucite glass-ceramics for dentistry.  Dental Materials, 2011, 2 7 1153–1161.

Contact

Dr Michael Cattell

m.cattell@qmul.ac.uk
+44 20 7377 7000 ext 46100 (Phone)

Centre for Adult Oral Health
Institute of Dentistry
Queen Mary's School of Medicine & Dentistry
Turner Street
Whitechapel
London E1 2AD
UK

Staff

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