Microstructure–Property Relationships in Human Adult and Baby Canine Teeth
|
| Journal |
Key Engineering Materials (Volumes 309 - 311) |
| Volume |
Bioceramics 18 |
| Edited by |
Takashi Nakamura, Kimihiro Yamashita and Masashi Neo |
| Pages |
23-26 |
| DOI |
10.4028/www.scientific.net/KEM.309-311.23 |
| Online since |
May, 2006 |
| Authors |
I.M. Low,
N. Duraman,
Ian J. Davies
|
| Keywords |
Enamel, Graded Structure, Synchrotron Radiation Diffraction, Vickers Indentation |
| Abstract |
Structure-property relationships in baby and adult teeth have been characterised using grazing-incidence synchrotron radiation diffraction and Vickers indentation. Similarities and differences between both types of teeth have been highlighted and discussed. Depth profiling results indicated the existence of contrasting but distinct gradual changes in crystal disorder, phase abundance, crystallite size and hardness within the baby and adult canine enamel, thus confirming
the graded nature of human teeth. When compared to the adult tooth, the baby enamel is softer, more prone to fracture, but has larger hydroxyapatite grains. |
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