p. 129−134
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p. 145−151
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0.05) differences between {(IIB) and (IB)}, {(IB)and (IIA)} and {(IIA) and (IA) }.It was noted that during thermo-mechanical aging a total loss of two samples in group (IIA) and only one sample in group (IA) and their results recorded as zero so not indicated in mean value calculation. Conclusions: The bonding to zirconia is affected by mechanical and chemical surface treatments which are sandblasting and primer application.]]>
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0.05) between the two experimental groups over the three follow-up evaluation periods (3, 6 and12 months). Regarding increase in root thickness, in subgroups A, statistical analysis showed significant difference (P < 0.05) between the experimental groups, on the other hand, the results were statistically insignificant (P >0.05) in subgroups B and C (6 and 12 months) follow-up evaluation periods. Regarding decrease in apical diameter the results were statistically significant (P < 0.05) over the three follow-up evaluation periods (3, 6, 12 months).]]>
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