Microtribological behaviour of human tooth enamel and artificial hydroxyapatite

Abstract The microtribological behaviour of human tooth enamel and artificial hydroxyapatite has been studied and compared in this paper using a nano-scratch tester, aiming to extend the understanding of the wear mechanism of enamel. Results showed that the microtribological behaviour of enamel differed obviously from that of artificial hydroxyapatite. Compared with the artificial hydroxyapatite, more significant plastic deformation happened to the enamel under low loads, but no brittle delamination mechanism occurred even under high loads. Enamel microstructure plays an extremely significant role in its microtribological behaviour. The results would be helpful for the development of new dental restorative materials.

[1]  Won-Suck Oh,et al.  Factors affecting enamel and ceramic wear: a literature review. , 2002, The Journal of prosthetic dentistry.

[2]  Lars Björkman,et al.  An overview of the current status of national reporting systems for adverse reactions to dental materials. , 2004, Journal of dentistry.

[3]  M Swain,et al.  Enamel: From brittle to ductile like tribological response. , 2008, Journal of dentistry.

[4]  Linmao Qian,et al.  Erosion behaviors of human tooth enamel at different depth , 2010 .

[5]  Lisa A. Pruitt,et al.  Nanoindentation of biological materials , 2006 .

[6]  J. Robert Kelly,et al.  CERAMICS IN RESTORATIVE AND PROSTHETIC DENTISTRY 1 , 1997 .

[7]  J Zheng,et al.  Nanomechanical properties and microtribological behaviours of human tooth enamel , 2010 .

[8]  V. Srivastava,et al.  Corrosion of alloys used in dentistry: A review , 2006 .

[9]  Rob Dwyer-Joyce,et al.  Wear of human teeth: A tribological perspective , 2005 .

[10]  Linmao Qian,et al.  Erosion behavior of human tooth enamel in citric acid solution , 2009 .

[11]  M. Huysmans,et al.  The reproducibility of ultrasonic enamel thickness measurements: an in vitro study. , 2004, Journal of dentistry.

[12]  M. Swain,et al.  Wear behaviour of dental enamel at the nanoscale with a sharp and blunt indenter tip , 2009 .

[13]  Yeau-Ren Jeng,et al.  Human enamel rod presents anisotropic nanotribological properties. , 2011, Journal of the mechanical behavior of biomedical materials.

[14]  G W Marshall,et al.  Mechanical properties of human dental enamel on the nanometre scale. , 2001, Archives of oral biology.

[15]  A J Gwinnett,et al.  Structure and composition of enamel. , 1992, Operative dentistry.

[16]  G. Marshall,et al.  The functional width of the dentino-enamel junction determined by AFM-based nanoscratching. , 2001, Journal of structural biology.

[17]  F. Cui,et al.  Property variations in the prism and the organic sheath within enamel by nanoindentation. , 2005, Biomaterials.

[18]  T. P. Weihs,et al.  Nanoindentation mapping of the mechanical properties of human molar tooth enamel. , 2002, Archives of oral biology.

[19]  T. Stolarski,et al.  Wear: mechanisms, manifestations and measurement. Report of a workshop. , 1996, Journal of dentistry.

[20]  G. R. Scott,et al.  The Anthropology of Modern Human Teeth: Dental Morphology and its Variation in Recent Human Populations , 1997 .

[21]  Marleen Peumans,et al.  Degradation of tooth structure and restorative materials: A review , 2006 .

[22]  Zhongrong Zhou,et al.  Tribology of dental materials: a review , 2008 .

[23]  M. Snead,et al.  Biological Organization of Hydroxyapatite Crystallites into a Fibrous Continuum Toughens and Controls Anisotropy in Human Enamel , 2001, Journal of dental research.