Weibull models for the statistical analysis of dental composite data: aged in physiologic media and cyclic-fatigued.
The modulus of rupture or flexural strength of dental composites aged in distilled water and saline solution or cyclic-fatigued to fracture in distilled water was analyzed by use of Weibull statistics. Two- and three-parameter Weibull models were applied to the data. For the case of the dental composites aged for five distinct time periods, the most appropriate model was a two-parameter Weibull model for each separate aging time. For the cyclic-fatigue data, a three-parameter accelerated failure time model with a Weibull baseline distribution and scale parameter, depending on the variable cycle, was appropriate.
Drummond
J L
JL
University of Illinois at Chicago.
Miescke
K J
KJ
D003188:Composite Resins; D003627:Data Interpretation, Statistical; D003799:Dental Stress Analysis / Q000379:methods*; D016013:Likelihood Functions
D003188:Composite Resins