Laser Treatment for Melanin Gingival Pigmentations: A Comparison Study for 3 Laser Wavelengths 2780, 940, and 445 nm

Table 7

The relapse of the pigmentations documented after 2 years.

			Relapse after 2 years (photo documentation)				Total
			No relapse	Mild relapse	Medium relapse	Sever relapse
groups	1.00	Count	4	1	4	1	10
		% within groups	40.0%	10.0%	40.0%	10.0%	100.0%
	2.00	Count	7	2	1	0	10
		% within groups	70.0%	20.0%	10.0%	0.0%	100.0%
	3.00	Count	6	2	2	0	10
		% within groups	60.0%	20.0%	20.0%	0.0%	100.0%
Total		Count	17	5	7	1	30
		% within groups	56.7%	16.7%	23.3%	3.3%	100.0%