Table 5. Means and 95% confident intervals (CIs) for the means of water sorption (%WS) after 24 hours, and 7, 14, and 21 days.
| Groups | Water sorption (%WS) | ||||
|---|---|---|---|---|---|
| 24 hr | 7 d | 14 d | 21 d | Statistical difference | |
| GKetac 0%A | 3.71 (3.41–4.02) | 3.53 (3.26–3.70) | 3.15 (2.96–3.38) | 2.95 (2.61–3.27) | AB7d, AC7d AB21d, AF24hr, AF7d, AF14d, AF21d |
| GKetac 0.5%B | 3.89 (3.52–4.12) | 3.93 (3.87–3.96) | 3.52 (3.15–3.55) | 3.36 (3.31–5.97) | BA7d, BC7d, BD7d, BE7d, BD14d, BA21d BD21d |
| GKetac 1%C | 3.65 (3.42–4.12) | 3.54 (3.12–3.73) | 3.28 (2.95–3.59) | 3.06 (2.60–3.37) | CA7d, CB7d, CD7d, CD14d, CI7d |
| GKetac 2%D | 3.71 (3.49–3.83) | 2.96 (2.67–3.21) | 2.67 (2.53–3.00) | 2.86 (2.62–3.10) | DB7d, DC7d, DB14d, DC14d DB21d |
| GKetac 5%E | 3.88 (3.34–4.21) | 3.25 (2.56–3.90) | 3.14 (2.57–3.65) | 3.28 (2.79–3.74) | EB7d, EJ24hr, EJ14d |
| GFuji 0%F | 2.38 (1.91–2.83) | 2.18 (1.28–2.32) | 1.90 (1.52–2.35) | 1.76 (1.28–1.99) | FA24hr, FA7d, FA14d, FA21d |
| GFuji 0.5%G | 10.54 (0.14–18.29) | 10.58 (0.14–18.00) | 10.75 (0.85–17.56) | 10.49 (0.78–17.24) | - |
| GFuji 1%H | 3.59 (2.75–3.90) | 1.90 (1.33–2.55) | 3.96 (2.35–11.60) | 8.65 (1.63–15.75) | - |
| GFuji 2%I | 3.89 (3.25–4.23) | 3.83 (3.26–4.26) | 3.13 (2.37–3.83) | 3.21 (2.15–3.62) | IC7d |
| GFuji 5%J | 0.57 (0.48–3.77) | 1.73 (0.47–4.08) | 0.76 (0.55–2.83) | 0.07 (0.00–3.05) | JE24hr, JE14d |
Kruskal-Wallis and Mann-Whitney test (p ≤ 0.05): comparisons of different concentrations between glass ionomer cements (GICs) and different concentration in the same GIC group. Wilcoxon test (p ≤ 0.05): comparisons of difference the period of times in the same GIC group.
Capital letters indicate the different groups. The 2 letters represent the statistic difference between groups: plain letters indicate statistical differences in concentration considering the same GIC and bold letters indicate statistical differences considering the same graphene concentration but comparing GKetac and GFuji. The subscript letters indicate the periods.