Results
fracture
The means and standard deviations of the color difference (∆E) values recorded in the studied groups were presented in Table 
Mean values and standard deviations of the color that the color difference (∆E) obtained from the 2 groups(∆E)Mean ± standard deviationSignificance was set at 
Mean values and standard deviations of the microgap values (µm) obtained from the 2 studied groups after cementationAverage Marginal gap (µm)Mean ± standard deviationMann-Whitney test was used*Statistically significant at 
Mean values and standard deviations of the microgap values (µm) obtained from the two studied groups after thermocycling and cyclic loadingAverage Marginal gap (µm)Mean ± standard deviationMann-Whitney test was used*Statistically significant at 
Mean values and standard deviations of load required to fracture the specimens in the 2 groupsLoad (N)Mean ± standard deviationSignificance was set at 