Figure 1.

Apical periodontitisis associated within creased immune cell infiltration in lesions. The frequencies of total leukocytes, macrophages, and B and T cells were determined using immunostaining and FACS analysis. (a) The absolute number of leukocytes isolated of the control tissue (n=10, open bar) and apical periodontal lesions (n=10, closed bar). (b) Bars show the frequencies of T cells (CD3⁺ CD4⁺ and CD3⁺ CD8⁺), B lymphocytes (CD19⁺), or macrophages (CD14⁺) isolated of apical lesions. Data are mean±SEM. *P<0.05, ***P<0.001