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. Author manuscript; available in PMC: 2018 Jul 1.

Published in final edited form as: J Prosthodont. 2015 Nov 30;26(5):410–418. doi: 10.1111/jopr.12396

Table 3.

Results of repeated measures analysis using linear mixed model and post-hoc comparisons

Gloss		Roughness
Effect	p	Effect	p
System	0.0002^*	System	0.006^*
Speed	<0.0001^*	Speed	<0.0001^*
Step	<0.0001^*	Step	<0.0001^*
System x Step	<0.0001^*	System x Step	0.06
Post-hoc analysis		Post-hoc analysis
Speed	p	System	p
5000 RPM – 15,000 RPM	<0.0001^*	Dialite ZR - CeraMaster	0.006
5000 RPM – 40,000 RPM	0.0002^*	Speed	p
15,000 RPM – 40,000 RPM	0.0005^*	5000 RPM – 15,000 RPM	<0.0001^*
System x Step	p	5000 RPM – 40,000 RPM	<0.0001^*
Dialite ZR: Step 1 - Step 2	<0.0001^*	15,000 RPM – 40,000 RPM	0.36
Dialite ZR: Step 2 - Step 3	<0.0001^*	Step	p
Dialite ZR: Step 3 - Step 4	<0.0001^*	Step 1 - Step 2	<0.0001^*
CeraMaster: Step 1 - Step 2	0.002^*	Step 2 - Step 3	0.002^*
CeraMaster: Step 2 - Step 3	0.34	Step 3 - Step 4	<0.0001^*
CeraMaster: Step 3 - Step 4	<0.0001^*
Step x System	p
Step 1: Dialite ZR – CeraMaster	0.9
Step 2: Dialite ZR – CeraMaster	<0.0001^*
Step 3: Dialite ZR – CeraMaster	<0.0001^*
Step 4: Dialite ZR – CeraMaster	0.78

Step 1: Bur roughen (15 s), Step 2: Medium polish (30 s), Step 3: Medium polish (60 s), Step 4: Fine polish (30 s).

^*

Denotes statistical significance at p < 0.05