The Effects of CO₂ Laser with or without Nanohydroxyapatite Paste in the Occlusion of Dentinal Tubules

Figure 4

Dentine surface scanning electron microscope (SEM) micrographs. (a) Control group (C), (b) laser only (L−), and (c) the laser plus nanohydroxyapatite paste (L+). The original magnification was ×1200.

(a)

(b)

(c)