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Fig. 1 | BMC Oral Health

Fig. 1

From: Epinephrine penetrates through gingival sulcus unlike keratinized gingiva and evokes remote vasoconstriction in human

Fig. 1

The clinical photograph shows the position of the wells and regions of interest in group A (A) and in group B (B). The laser speckle contrast images show a lack of ischemic area after the application of epinephrine in the test well in group A (C) and four ischemic regions above the test tooth in group B (D). The colors indicate the different intensity of the blood flows from the lowest to the highest in order of blue, green, yellow, red

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