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. 2020 Jun 3;15:3921–3936. doi: 10.2147/IJN.S244686

Figure 7.

Figure 7

Representative FE-SEM images showing colonization of E. faecalis on the pretreated root canal walls (capital letters: ×3000 magnification; small letters: ×10,000 magnification).

Notes: (A and a) Negative control group; (B and b) CH group; (C and c) MCSNs group; (D and d) Ag-MCSNs group; (E and e) Zn-MCSNs group; (F and f) Ag/Zn(1:9)-MCSNs group; (G and g) Ag/Zn(1:1)-MCSNs group; (H and h) Ag/Zn(9:1)-MCSNs group.

Abbreviations: FE-SEM, field emission scanning electron microscopy; CH, calcium hydroxide; MCSNs, mesoporous calcium-silicate nanoparticles; Ag-MCSNs, nanosilver-incorporated MCSNs; Ag/Zn-MCSNs, nanosilver- and nanozinc-incorporated MCSNs; Zn-MCSNs, nanozinc-incorporated MCSNs.