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Fig. 1 | BMC Oral Health

Fig. 1

From: Revisiting the vascularity of the keratinized gingiva in the maxillary esthetic zone

Fig. 1

The upper oral vestibule esthetic zone with regions of interest. a The superior labial artery (SLA) gives a vertically orientated sub-branches that ramify (near the mucogingival junction) to slightly deviated tributaries moving toward the gingival papillae. The regions analogus to the LSCI’s ROIs are indicated by red rectangules. b The vertical branch of the SLA above the right upper incisors, bisects to small arteries and supply the mucosa. c Selection of the primary ROIs during the occlusion on the native LSCI image. d The mean and the standard error of the blood flow values, expressed in LSPU, in various ROIs in males (red line) and females (blue line). Significant differences compared to the baseline (TOI 1) are indicated by an asterisk, * in males and + in females, p < 0.05 after Bonferroni adjustment. Green arrows indicate a significant rebound in males during the second half of the compression

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