|
Instrument
|
Plaque-covered area
|
Plaque removal rate
|
|---|
|
Before (%)
|
After (%)
|
p value
|
Plaque removal rate (%)
|
Adjusted p vs. brush
|
|---|
|
All subjects (n = 9)
|
|
Brush
|
38.9 ± 7.2
|
23.1 ± 5.8
|
0.107
|
53.3 ± 8.5
| |
|
AF
|
30.7 ± 7.1
|
10.7 ± 3.6
|
0.027*
|
70.9 ± 6.5
|
0.656
|
|
OralB
|
36.0 ± 6.5
|
9.8 ± 2.4
|
0.004**
|
75.4 ± 6.3
|
0.139
|
|
SD
|
35.4 ± 5.5
|
9.6 ± 2.2
|
0.001**
|
74.4 ± 4.2
|
0.352
|
|
Total (n = 36)
|
35.2 ± 3.2
|
13.3 ± 2.1
|
< 0.0001**
| | |
|
Poor brushing group (n = 5)
|
|
Brush
|
46.3 ± 10.7
|
29.6 ± 8.9
|
0.266
|
35.3 ± 8.5
| |
|
AF
|
32.6 ± 10.4
|
12.2 ± 5.9
|
0.137
|
69.4 ± 9.4
|
0.144
|
|
OralB
|
33.4 ± 9.3
|
8.3 ± 6.3
|
0.053
|
80.7 ± 6.3
|
0.008*
|
|
SD
|
30.6 ± 7.2
|
8.2 ± 2.7
|
0.032*
|
75.7 ± 5.5
|
0.049*
|
|
Good brushing group (n = 4)
|
|
Brush
|
29.6 ± 8.2
|
14.9 ± 5.3
|
0.193
|
75.9 ± 2.8
| |
|
AF
|
28.3 ± 10.8
|
8.9 ± 4.4
|
0.170
|
72.7 ± 10.0
|
> 0.999
|
|
OralB
|
39.2 ± 10.2
|
11.7 ± 4.1
|
0.068
|
68.8 ± 12.1
|
> 0.999
|
|
SD
|
41.4 ± 8.7
|
11.5 ± 3.8
|
0.034*
|
72.7 ± 7.2
|
> 0.999
|
|
Buccal (n = 9)
|
|
Brush
|
37.3 ± 7.1
|
22.1 ± 5.1
|
0.104
|
52.8 ± 7.9
| |
|
AF
|
27.9 ± 6.3
|
9.4 ± 3.2
|
0.023*
|
70.1 ± 7.3
|
0.210
|
|
OralB
|
31.1 ± 6.0
|
7.3 ± 2.4
|
0.004**
|
77.7 ± 6.5
|
0.023*
|
|
SD
|
32.9 ± 6.3
|
6.9 ± 1.7
|
0.003**
|
79.5 ± 3.7
|
0.042*
|
|
Total (n = 36)
|
32.3 ± 3.1
|
11.4 ± 1.9
|
< 0.0001**
| | |
|
Palatal (n = 9)
|
|
Brush
|
42.1 ± 7.7
|
26.0 ± 7.6
|
0.143
|
53.1 ± 10.4
| |
|
AF
|
38.2 ± 9.4
|
13.8 ± 5.0
|
0.035*
|
68.2 ± 7.4
|
0.879
|
|
OralB
|
44.4 ± 7.8
|
15.9 ± 4.1
|
0.007*
|
71.7 ± 6.0
|
0.517
|
|
SD
|
43.8 ± 7.8
|
17.4 ± 4.5
|
0.002**
|
66.1 ± 5.7
|
> 0.999
|
|
Total (n = 36)
|
42.3 ± 4.0
|
18.2 ± 2.7
|
< 0.0001**
| | |
- Unpaired t tests with Welch’s correction were performed to compare the two groups. Kruskal-Wallis one-way analysis of variance, followed by Dunn’s multiple comparisons test, was used to determine statistically significant differences. Significant differences are shown as italic numbers. *p < 0.05; **p < 0.005
