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. 2009 Apr 17;4(2):74–78.

Table 3.

Analysis of pH values (Mean±SD) recorded at different time intervals a

Time 1h 3h 24 h 48 h 7 d 28 d
WMTA a10.6112 (0.63) a9.633(0.30) a10.2812(0.08) a10.0923(0.28) a10.5912(0.18) a10.801(0.08)
CEM cement a10.711(0.24) a10.023(0.24) a10.4112(0.14) a10.1623(0.11) a10.4312(0.15) b10.651(0.05)
PC a10.001(0.56) a9.711(0.18) b9.921(0.26) a9.471(0.76) a9.891(0.75) b10.541(0.10)

a: Values followed by different numbers (1-3) demonstrate statistically significant differences for pH within a material at different times; different letters (a, b) show statistically significant differences for pH in study groups at a particular time