Table 3.

Plaque indices and plaque reduction percentages for the buccal and lingual surfaces

	Buccal		Lingual
	STM system TBI	Conventional TBI	STM system TBI	Conventional TBI
Baseline	3.77 (0.92)	3.65 (0.88)	2.86 (0.90)	2.76 (0.96)
Immediately after TBI	2.03 (0.78)	2.12 (0.99)	1.96 (0.79)	1.99 (0.97)
1 week after TBI	2.11 (0.97)	2.24 (1.07)	1.91 (0.81)	2.01 (0.96)
1 month after TBI	1.91 (0.90)	1.90 (1.13)	1.86 (0.65)	1.54 (0.82)
Mean decrease	46.69%	43.83%	31.05%	33.89%
p valuea	0.78		0.25

STM system smart toothbrush and smart mirror system, TBI toothbrushing instruction

^aLinear mixed model for repeated measure data, group x time interaction