Table 3.
Plaque reduction after self- and/or external brushing by a laypeople or dental professional using a manual or powered toothbrush
| Total N = 39 | All | Laypeople/manual toothbrush | Dental professional/manual toothbrush | Laypeople/powered toothbrush | Dental professional/powered toothbrush | |
|---|---|---|---|---|---|---|
| PBI-BL | 39 |
0.84 (0.80) 0.56 0.29–1.21 |
0.65 (0.46) 0.53 0.30–1.03 |
1.05 (1.21) 0.42 0.17–1.80 |
0.83 (0.42) 0.53 0.27–1.21 |
0.81 (0.42) 0.72 0.56–0.89 |
| PBI-FU 1 | 39 |
0.48 (0.49) 0.31 0.17–0.57 |
0.37 (0.29) 0.31 0.1–0.56 |
0.61 (0.69) 0.32 0.04–0.86 |
0.41 (0.53) 0.21 0.15–0.44 |
0.54 (0.38) 0.53 0.29–0.57 |
| p value (BL-FU 1) | < 0.001 | |||||
| PBI-FU 2 | 39 |
0.33 (0.33) 0.22 0.09–0.54 |
0.21 (0.19) 0.20 0.08–0.24 |
0.41 0.52) 0.20 0.04–0.58 |
0,28 (0.25) 0.18 0.13–0.38 |
0,43 (0.26) 0.37 0.19–0.72 |
| p value (BL-FU2) | < 0.001 | |||||
| QHI-BL pre self-brushing | 38 |
1.48 (0.54) 1.46 1.16–1.86 |
1.55 (0.48) 1.39 1.34–1.77 |
1.20 (0.64) 1.12 0.77–1.52 |
1.48 (0.49) 1.59 1.16–1.86 |
1.66 (0.53) 1.65 1.47–1.92 |
| QHI-BL post self-brushing | 38 |
0.89 (0.52) 0.83 0.57–1.34 |
0.98 (0.55) 0.90 0.61–1.16 |
0.60 (0.44) 0.60 0.24–0.61 |
0.98 (0.55) 1.01 0.54–1.44 |
1.00 (0.50) 0.85 0.68–1.42 |
| p value | < 0.001 | |||||
| QHI-FU-1 pre external brushing | 38 |
1.14 (0.51) 1.13 0.83–1.46 |
1.25 (0.70) 1.45 0.52–1.85 |
1.03 (0.50) 0.92 0.83–1.37 |
1.17 (0.47) 1.11 0.98–1.21 |
1.11 (0.37) 1.14 0.82–1.32 |
| QHI-FU-1 post external brushing | 38 |
0.48 (0.32) 0.44 0.210.61 |
0.60 (0.48) 0.65 0.09–0.89 |
0.51 (0.29) 0.52 0.38–0.56 |
0.46 (0.21) 0.48 0.29–0.61 |
0.32 (0.18) 0.25 0.19–0.41 |
| p value | < 0.001 | |||||
| QHI-FU-2 pre self-brushing | 35 |
1.13 (0.59) 1.02 0.57–1.58 |
1.0 (0.66) 0.86 0.52–1.48 |
1.29 (0.74) 1.26 0.55–1.99 |
1.04 (0.46) 1.07 0.79–1.08 |
1.19 (0.53) 1.11 1–1.22 |
| QHI-FU-2 Post self-brushing | 35 |
0.51 (0.38) 0.38 0.25–0.68 |
0.40 (0.29) 0.32 0.3–0.41 |
0.52 (0.36) 0.52 0.16–0.78 |
0.56 (0.30) 0.55 0.29–0.71 |
0.56 (0.54) 0.36 0.25–0.48 |
| p value (self-brushing) | < 0.001 | |||||
| QHI-FU-2 post external brushing | 35 |
0.2 (0.17) 0.15 0.08–0.27 |
0.20 (0.17) 0.13 0.09–0.27 |
0.16 (0.11) 0.16 0.06–0.23 |
0.24 (0.23) 0.16 0.11–0.29 |
0.21 (0.17) 0.15 0.13–0.19 |
| p value (external brushing) | < 0.001 | |||||
| MPI-BL pre self-brushing | 39 |
0.66 (018) 0.71 0.56–0.79 |
0.68 (0.17) 0.69 0.59–0.74 |
0.59 (0.22) 0.62 0.42–0.79 |
0.65 (0.21) 0.67 0.56–0.84 |
0.71 (0.12) 0.73 0.71–0.77 |
| MPI-BL post self-brushing | 39 |
0.4 (0.2) 0.4 0.25–0.52 |
0.42 (0.23) 0.41 0.25–0.44 |
0.30 (0.18) 0.30 0.17–0.35 |
0.41 (0.21) 0.38 0.29–0.56 |
0.48 (0.15) 0.49 0.41–0.56 |
| p value | < 0.001 | |||||
| MPI-FU-1 pre external brushing | 39 |
0.59 (0.22) 0.62 0.47–0.75 |
0.60 (0.28) 0.70 0.45–0.81 |
0.62 (0.26) 0.73 0.49–0.76 |
0.63 (0.18) 0.62 0.53–0.72 |
0.52 (0.13) 0.56 0.47–0.62 |
| MPI-FU-1post external brushing | 39 |
0.25 (0.16) 0.21 0.14–0.34 |
0.30 (0.21) 0.28 0.14–0.45 |
0.28 (0.17) 0.24 0.21–0.35 |
0.24 (0.11) 0.26 0.14–0.34 |
0.18 (0.11) 0.15 0.07–0.3 |
| p value | < 0.001 | |||||
| MPI-FU-2 pre self-brushing | 36 |
0.52 (0.18) 0.54 00.37–0.68 |
0.46 (0.23) 0.42 0.27–0.68 |
0.56 (0.19) 0.61 0.39–0.71 |
0.51 (0.15) 0.56 0.41–0.59 |
0.54 (0.18) 0.52 0.42–0.67 |
| MPI-FU-2 post self-brushing | 36 |
0.27 (0.15) 0.24 0.17–0.36 |
0.24 (0.18) 0.23 0.1–0.27 |
0.26 (0.12) 0.29 0.16–0.32 |
0.30 (0.13) 0.30 0.21–0.4 |
0.26 (0.17) 0.24 0.17–0.25 |
| p value (self-brushing) | < 0.001 | |||||
| MPI-FU-2 post external brushing | 36 |
0.12 (0.87) 0.09 0.06–0.17 |
0.11 (0.11) 0.11 0.04–0.12 |
0.12 (0.08) 0.09 0.05–0.16 |
0.14 (0.10) 0.11 0.07–0.19 |
0.10 (0.06) 0.08 0.07–0.12 |
| p value (exterbal brushing) | < 0.001 |
Data are presented as mean (standard deviation), median (interquartile range). p values are from Wilcoxon Signed Ranks tests
BL baseline; FU follow-up; MPI marginal plaque index; PBI papilla bleeding index; QHI Quigley-Hein index