Gingival Depigmentation Using Diode 980 nm and Erbium-YAG 2940 nm Lasers: A Split-Mouth Clinical Comparative Study

Table 3

Indices used for evaluation of bleeding and wound healing.

Grade	Bleeding index (BI)	Grade	Wound healing index (WHI)
1	No bleeding, complete homeostasis	1	Tissue necrosis
2	Isolated bleeding points during surgery (mild)	2	Ulcer formation
3	Moderate bleeding, but clear field	3	Incomplete epithelialization
4	Severe bleeding, difficulty in procedure	4	Complete epithelialization