Research Article

Application of an Antibacterial Coating Layer via Amine-Terminated Hyperbranched Zirconium–Polysiloxane for Stainless Steel Orthodontic Brackets

Figure 3

(a) SEM pictures of HPZP@SST before and after 100 cycles of brushing (100 min in total); (b) SEM pictures of HPZP@SST before and after 9 days of immersion in artificial saliva. The scale was shown in the pictures.
(a)
(b)