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Table 3 Pearson correlation values between vertical and volume loss in each material

From: Protective effect of a nanofilled resin-based coating on wear resistance of glass ionomer cement restorative materials

Material

Uncoated

Coated

Fuji II LC

r*

0.97

0.99

t**

8.31

12.66

pϯ

0.00

0.00

Equia forte fil

r

0.97

0.79

t

8.67

2.54

p

0.00

0.03

Ketac nano

r

0.56

0.74

t

1.37

2.20

p

0.12

0.05

Riva self cure

r

0.94

0.80

t

5.72

2.69

p

0.00

0.03

  1. * \(r = \frac{{\left[ {\frac{1}{N - 1}} \right]\sum {\left( {x - \overline{x}} \right)\left( {y - \overline{y}} \right)} }}{{s_{x} s_{y} }}\) ** \(t = \frac{{r\sqrt {N - 2} }}{{\sqrt {1 - r^{2} } }}\) ϯ P value
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BMC Oral Health

ISSN: 1472-6831

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