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Table 4 Plaque indices and plaque reduction percentages for buccal surface of the maxillary first molars

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

p valuea

Baseline

4.29 (0.78)

4.10 (1.09)

0.725

Immediately after TBI

2.19 (1.04)

2.71 (1.33)

0.142

1 week after TBI

3.19 (1.09)

3.12 (1.31)

0.970

1 month after TBI

2.76 (1.26)

3.07 (1.43)

0.432

Mean decrease

37.35%

30.07%

 
  1. STM system smart toothbrush and smart mirror system, TBI toothbrushing instruction
  2. aMann-Whitney U test