coefficient of thermal expansion(redirected from Volumetric thermal expansion coefficient)
Also found in: Encyclopedia.
coefficient of thermal expansion
The change in the dimensions of a material when its temperature is raised 1°C. In dentistry, if the relative expansion and contraction of restorative materials, casts, or appliances are not accounted for, the patient may have problems with improper fitting, microleakage, or adhesive debonding.
See also: coefficient
Medical Dictionary, © 2009 Farlex and Partners