Table 2. Frequency and percentage of each plaque index score for each tooth surface between the Conventional and Ortho-FlexTech retainers, followed by the P value for each surface .

Plaque Index
	Conventional n (%)	Ortho-FlexTech n (%)	P-value
Mesial
0	1 (6.7)	1 (6.7)	0.03
1	9 (60.0)	4 (26.7)
2	5 (33.3)	8 (53.3)
3	0 (0.0)	2 (13.3)
Distal
0	1 (6.7)	1 (6.7)	0.03
1	9 (60.0)	4 (26.7)
2	5 (33.3)	8 (53.3)
3	0 (0.0)	2 (13.3)
Vestibular
0	12 (80)	6 (40)	0.01
1	3 (20)	9 (60)
2	0 (0.0)	0 (0.0)
3	0 (0.0)	0 (0.0)
Lingual
0	1 (6.7)	0 (0.0)	0.001
1	9 (60.0)	2 (13.3)
2	5 (33.3)	10 (66.7)
3	0 (0.0)	3 (20.0)