Table 3.

The mean, standard deviation (SD) values and results of repeated measures ANOVA test for comparison between internal fit (µm) with different section locations

Connection	Material	Internal fit (µm) (Mean ± SD)			p-value	Effect size
		Top	Middle	Bottom		Eta squared (95% CI)
Star shaped (S)	Zr	48.50 ± 2.00Aa	48.50 ± 2.00Aa	27.50 ± 2.00Ba	< 0.001*	0.950 (0.913:0.962)
	Ti	36.00 ± 2.65Ab	37.00 ± 0.00Ab	27.00 ± 0.00Ba	< 0.001*	0.938 (0.894:0.954)
	Co-Cr	31.00 ± 1.00Ac	31.00 ± 1.00Ac	28.50 ± 1.00Ba	0.022*	0.796 (0.660:0.847)
	Co-Cr-Mo	34.00 ± 2.00Abc	24.50 ± 0.00Cd	28.00 ± 2.00Ba	< 0.001*	0.950 (0.913:0.962)
p-value		< 0.001*	< 0.001*	0.702
Effect size	Eta squared (95% CI)	0.855 (0.753:0.887)	0.912 (0.848:0.931)	0.040 (0.000:0.111)
Hybrid (H)	Zr	52.83 ± 2.02Aa	54.17 ± 3.51Aa	34.67 ± 1.15Ba	< 0.001*	0.211 (0.018:0.369)
	Ti	53.33 ± 1.04Aa	50.11 ± 0.96Bb	30.89 ± 0.77Cb	< 0.001*	0.930 (0.879:0.947)
	Co-Cr	51.67 ± 1.04Aa	47.33 ± 2.75Bb	32.33 ± 1.44Cab	< 0.001*	0.748 (0.586:0.811)
	Co-Cr-Mo	54.11 ± 0.10Aa	50.83 ± 0.76Bab	31.33 ± 1.26Cab	< 0.001*	0.951 (0.916:0.963)
p-value		0.326	< 0.001*	0.034*
Effect size	Eta squared (95% CI)	0.095 (0.000:0.206)	0.440 (0.185:0.557)	0.220 (0.010:0.355)

Values with different Capital superscripts within the same horizontal row are significantly different, while Values with different Small superscripts within the same vertical culum are significantly different, * significant (p<0.05)