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Table 1 Surface elemental composition (wt %) of FRRCs (Mean and standard deviation)

From: Does repeated autoclave sterilization cause changes in the color and fragility of fiberglass reinforced resin crowns?

Elemental

Composition

Sterilization

p value *

Control Group

Group 1

Group 2

C

60.14 ± 3.056

49,99 ± 9,49

60.59 ± 1.19

0.113

O

25.01 ± 3.15

27.11 ± 1.98

22.78 ± 2.37

0.195

Al

1.55 ± 0.11

2.14 ± 0.74

1.56 ± 0.15

0.254

Si

5.90 a ± 0.26

10.37 b ± 3.00

6.40 a,b ± 0.64

0.041

Cl

1.48 ± 0.17

1.24 ± 0.50

1.55 ± 0.19

0.514

Ba

5.92 ± 0.45

9.15 ± 5.10

7.12 ± 1.01

0.462

  1. * p values are based on the one-way Anova test. Bold numbers represent the statistically signifi-cant difference (p < .05). C: Calcium, O: Oxygen, Al: Aluminum, Si: Silicon, Cl: Chlorine, Ba: Barium. The different lowercase letters represent the statistical difference between the groups on the same line. Control Group: no sterilization, Group 1: one sterilization, Group 2: four sterilizations with an interval of a day