Table 3 Comparison of surface roughness of antagonist primary maxillary molars opposing different crown types.

From: Qualitative surface roughness of lithium disilicate endo-crown for pulpotomized primary molars

Groups

Ra (μm)

(Mean ± SD)

Paired- t-test

p-value†

Before

After

Antagonist to group-ST

0.2499 ± 0.001bA

0.2501 ± 0.001bA

0.373

0.725

Antagonist to group-ZR

0.2478 ± 0.001cB

0.2567 ± 0.001aA

6.21

 ≤ 0.001*

Antagonist to group-FG

0.2470 ± 0.001bB

0.2493 ± 0.001bA

6.429

 ≤ 0.001*

Antagonist to group-LD

0.2519 ± 0.001aB

0.2570 ± 0.001aA

8.146

 ≤ 0.001*

F-test

10.19

8.284

 

P-value

0.001*

0.001*

  1. *, and Different small superscript letters in the same column indicate statistically significant differences using one-way ANOVA (p ≤ 0.05).
  2. †Different capital superscript letters in the same row indicate statistically significant differences using pairs sample T-Test (p ≤ 0.05).
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