Fig. 5
From: A novel simplified approach for endodontic retrograde surgery in short single-rooted teeth
Representative SEM images of cross sections. (A) Low-magnification images of the conventional surgery group. (D) Low-magnification images of the standard surgery group. (G) Low-magnification images of the modified surgery group. (K), (N), (Q) High-magnification images of the black-framed areas in (J), (M), and (P), respectively. (L), (O), (R) High-magnification images of black-framed areas in (J), (M), and (P), respectively. DE, dentin; GP, gutta-percha; BP, iRoot BP.