Table 3 Plaque reduction after self- and/or external brushing by a laypeople or dental professional using a manual or 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