PMC7368218_01
Initial clinical appearance with melanic pigmentations.
CRID2020-8853086.001.jpg
PMC7368218_01_CRID2020-8853086.001.jpg
fig1
A pigmentation index as mentioned by Kumar et al. was used to determine the level of pigmentation, and the score was diagnosed as "3" (diffuse brown to black pigmentation, marginal, and attached) (Figure 1).
Clinical appearance immediately after the diode laser procedure and labial frenectomy.
CRID2020-8853086.002.jpg
PMC7368218_01_CRID2020-8853086.002.jpg
fig2
This procedure was repeated until the desired depth of tissue removal was reached, combined with a labial frenectomy (Figure 2).
Clinical image showing a fibrin layer that completely covers the "laser wound" 6 hours after the operation.
CRID2020-8853086.003.jpg
PMC7368218_01_CRID2020-8853086.003.jpg
fig3
It should be noted that a greyish-white fibrin layer completely covers the "laser wound" 6 hours after the operation (Figure 3), which should not be misinterpreted as secondary infection.
Clinical image of the upper anterior gingiva 4 months after, with no recurrence.
CRID2020-8853086.004.jpg
PMC7368218_01_CRID2020-8853086.004.jpg
fig4
Four months later, the patient had no symptoms or signs of gingival melanin pigmentation (Figure 4).