Figure 6

SEM images (×100 magnification) of clear aligners. (A) A schematic diagram of the SEM image capture locations, (B) IPA, (C) NT, (D) RT-2, 4, 6 min, and (E) HT-2, 4, 6 min. ROI, region of interest; NT, Not treated; RT, Room temperature; HT, High temperature; IPA, Isopropyl alcohol.