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Figure 3. Mean pH values (± SD; n = 3) of water in which ncTTCPs ground for 1 hr and 24 hrs and a commercial Ca(OH)2/salicylate cement (Life, Kerr) were boiled. ncTTCP cements were prepared at a powder-to-liquid ratio of 2 g/mL with a 2.5% Na2HPO4 solution. All samples (600–700 mg) were boiled in 100 mL water for up to 600 min, and the immersion liquid was replaced after 1 min, 10 min, and thereafter every 100 min. *Values are significantly different (p < 0.001).
