Physiological Gingival Melanin Hyperpigmentation Treatment with Injectable Vitamin C and Scalpel Technique: A Randomised Controlled Clinical Trial

Table 1

Comparison of intensity, area of pigmentation, repigmentation, and pain score between the test and control group.

Parameters	Groups	N	Mean ± SD	Difference	values
Preoperative intensity	Control	15	2.60 ± 0.51	0.20	0.076 (NS)
	Test	15	2.40 ± 0.63
Postoperative intensity	Control	15	0.53 ± 0.52	−0.94	0.754 (NS)
	Test	15	1.47 ± 0.64
Preoperative area of pigmentation	Control	15	114.40 ± 8.72	0.33	0.936 (NS)
	Test	15	114.07 ± 13.24
Postoperative area of pigmentation	Control	15	32.27 ± 6.67	0.20	0.932 (NS)
	Test	15	37.07 ± 5.99
Percentage of repigmentation	Control	15	32.87 ± 7.04	0.28	0.903 (NS)
	Test	15	32.59 ± 5.14
VAS score	Control	15	3.33 ± 0.82	2.60
	Test	15	0.73 ± 0.71

NS: nonsignificant difference at ; indicates significant difference at .