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Table 2 Plaque indices and plaque reduction percentages for the whole mouth

From: Efficacy of tooth brushing via a three-dimensional motion tracking system for dental plaque control in school children: a randomized controlled clinical trial

 

STM system TBI

Conventional TBI

Baseline

3.31 (0.80)

3.21 (0.81)

Immediately after TBI

1.99 (0.73)

2.06 (0.90)

1 week after TBI

2.01 (0.78)

2.12 (0.98)

1 month after TBI

1.88 (0.67)

1.72 (0.95)

Mean decrease

40.50%

40.57%

p valuea

0.44

  1. STM system smart toothbrush and smart mirror system, TBI toothbrushing instruction
  2. aLinear mixed model for repeated measure data, group x time interaction