title: Viscosity of dental porcelain as a function of temperature.
abstract: A method for viscosity measurement is described and representative data are given for opaque, gingival, and incisal porcelains. The significance of viscosity in annealing and in stress development due to thermal expansion mismatch is discussed. Thermal history of the porcelain is shown to be important only over a relatively small temperature interval in affecting residual stresses.
mesh_terms: D003776:Dental Porcelain; D003799:Dental Stress Analysis; D006358:Hot Temperature; D013314:Stress, Mechanical; D013499:Surface Properties; D013696:Temperature; D013816:Thermodynamics; D014783:Viscosity
chemical_list: D003776:Dental Porcelain