Fig. 3
From: Sex-related differences in endothelium-dependent vasodilation of human gingiva
The comparison of baseline gingival blood flow (GBF) between sex groups at negative control, saline, and test site in different regions. GBF is expressed in the laser speckle perfusion unit (LSPU). The baseline GBF was not significantly different between agonists and sites. However, the GBF was gradually increased from coronal to apical. The men had higher baseline GBF than women in all sites and regions