Measurement of thermal expansion coefficient of human teeth.
The coefficient of thermal expansion of specimens from 60 freshly extracted human teeth were measured over the range 10-80 degrees C using a dilatometer. The coefficient increased rapidly above 50 degrees C, but there was no significant variation with tooth age between 10 and 70 years. The average values obtained were 16.96 (SD 3.83) x 10(-6)/degrees C for enamel, 10.59 (SD 2.38) x 10(-6)/degrees C for dentine, 11.90 (SD 4.42) x 10(-6)/degrees C for crowns and 9.44 (SD 0.61) x 10(-6)/degrees C for roots.
Xu
H C
HC
Liu
W Y
WY
Wang
T
T
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D003743:Dental Enamel / Q000502:physiology; D003804:Dentin / Q000502:physiology; D006358:Hot Temperature; D006801:Humans; D008875:Middle Aged; D013816:Thermodynamics; D014070:Tooth / Q000502:physiology*; D014092:Tooth Root / Q000502:physiology