Abstract
Based on the hydrodynamic hypothesis for tooth thermal pain, a thermo-mechanical model is proposed to simulate dentinal fluid flow under thermal stimulation. It is found that, upon applying the thermal stimulation, other than thermally-induced fluid expansion/contraction, the deformation of dentine micro tubules is responsible for the rapid response of fluid flow in dentinal tubules. The mechanism underlying the difference in neural discharge patterns caused by cooling and those by heating is provided. It is the first time that the hydrodynamic hypothesis proposed by Brännström in 1962 is theoretically demonstrated and perfected.
| Original language | English |
|---|---|
| Pages (from-to) | 117-122 |
| Number of pages | 6 |
| Journal | Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University |
| Volume | 45 |
| Issue number | 12 |
| State | Published - Dec 2011 |
Keywords
- Dental thermal pain
- Dentinal tubule deformation
- Hydrodynamic hypothesis
- Neural discharge pattern
- Thermo-mechanical model