Different Setting Conditions Affect Surface Characteristics and Microhardness of Calcium Silicate-Based Sealers

Figure 4

(a) Scanning electron microscopy images of Well-Root ST (Vericom, Chuncheon, Korea) under different setting conditions appear to be their primary particles and the degree of fusion differs depending on the condition. (A), (B), and (C) Large number of petal-like crystallized structures (asterisk). (D), (E), (F), (G), (H), and (I) Clusters of globular particles (arrowhead) with petal-like crystals (asterisk). Surface XRD analysis and phase fraction of Well-Root ST stored for 14 days in 100% humidity only (b), initially exposed to phosphate-buffered saline (PBS) for 2 days (c) and acidic solution for 2 days (d).

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(b)

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