Evaluation of the Coating with TiO₂ Nanoparticles as an Option for the Improvement of the Characteristics of NiTi Archwires: Histopathological, Cytotoxic, and Genotoxic Evidence

Figure 7

Microphotomicrograph of kidney dyed with H&E at 40x. (a) Control group with normal histopathological characteristics, glomerulus (G), urinary space (), proximal convoluted tubule (white arrow), and distal tubules (yellow arrow) are observed. In 1, 2, and 3 experimental groups (microphotographs b, c, and d, resp.) glomerular retraction (black arrows), an increase of urinary space (∗), and mild vascular congestion (red arrow) are observed.

(a)

(b)

(c)

(d)