Table 4.
Mean (SD) surface hardness (kg/mm2) of Fuji II LC immersed in various storage media over a period of 7 days.
| Mean (SD) surface hardness (kg/mm2) | |||||||
|---|---|---|---|---|---|---|---|
| Storage media | Before immersion | 6 hours | 1 day | 2 days | 3 days | 4 days | 7 days |
| Deionized water | 50.38 (1.34) | 50.64 (1.42) | 55.10 (0.61) | 55.58 (0.94) | 56.03 (0.33) | 56.29 (0.57) | 55.75 (0.75)a |
| Citrate buffer solution | 49.44 (1.80) | 45.78 (2.48) | 37.71 (0.82)* | 28.32 (2.96)* | 18.22 (1.92)* | 14.15 (2.96)* | 12.52 (1.17)*,c |
| Green mango juice | 51.48 (1.72) | 26.65 (1.05)* | 19.24 (1.06)* | 13.60 (1.15)* | 9.67 (1.01)* | 8.02 (0.89)* | 6.37 (0.89)*,d |
| Pineapple juice | 50.87 (4.26) | 54.02 (3.84) | 43.89 (2.98) | 30.08 (1.52)* | 26.03 (1.59)* | 25.17 (0.87)* | 19.76 (1.26)*,b |
*
indicates significant difference compared to before immersion for each storage media (in rows) according to Tukey HSD test (P<.05).
a,b,c,d
indicate significant differences among 4 storage media (in columns) according to Tukey HSD test (P<.05).