Table 5 Tooth brushing performance of 10- and 15-year olds (N = 54) with outlier correction in all behavioural parameters

Tooth contact time (s)

184.1 (68.9)

195.3 (75.0)

 Inner surfaces

28.4 (33.0); 15.8 (3.0, 41.1)

30.4 (23.2)

 Outer surfaces

71.3 (36.0)

91.9 (43.3); 78.2 (59.2, 125.3)

 Occlusal surfaces

84.4 (40.3)

72.0 (37.5)

% of tooth contact time

 Inner surfaces

13.9 (14.0); 11.8 (1.5, 17.9)

16.3 (10.5)

 Outer surfaces

38.7 (12.9)

46.8 (11.9)

 Occlusal surfaces

47.4 (16.9)

36.9 (10.6)

% of movements on inner surfaces^{a, b}

 Circular

N.A

N.A

 Horizontal

53.3 (40.5); 62.4 (5.9, 94.0)

72.3 (32.1); 85.9 (46.9, 96.5)

 Vertical

46.7 (40.6); 37.6 (5.0, 94.1)

27.7 (32.1); 14.1 (3.5, 53.1)

 No movements

0.0 (0.2); 0.0 (0.0, 0.0)

N.A

% of movements on outer surfaces^b

 Circular

41.3 (36.5); 34.3 (0.0, 79.8)

43.4 (37.6); 45.7 (0.3, 75.8)

 Horizontal

54.6 (37.9); 54.9 (15.8, 96.5)

53.4 (39.0); 42.7 (20.0, 98.4)

 Vertical

3.2 (8.3); 0.0 (0.0, 1.0)

2.9 (7.0); 0.0 (0.0, 1.9)

 No movements

0.8 (1.3); 0.0 (0.0, 1.3)

0.3 (0.6); 0.0 (0.0, 0.8)