AbstractIntroduction Compare the brushing duration and use-interaction patterns in children aged 7-10 years using a Philips Sonicare For Kids power toothbrush versus Oral-B Stages 4 manual toothbrush.

Materials and Methods Sixty healthy subjects (31 females, 29 males) were enrolled in an IRB-approved, randomized, parallel design 2-week study. Informed consent/assent was obtained. At visit 1, eligible subjects were randomized and provided brushing instructions. They performed an on-site brushing session immediately thereafter. It was timed and video-recorded for duration and use-interaction data collection. A home use period of 2-weeks commenced with the assigned product in order for subjects to familiarize to the device. At visit 2, the brushing and recording procedure was repeated and subjects were dismissed. Longitudinal and between-group comparisons were assessed for duration and ergonomic use interaction events. Statistical analysis was performed using the Wilcoxon Test.

Results Thirty-one subjects were randomized to Sonicare For Kids and twenty-nine to the manual toothbrush. A longer median brushing duration was observed for Sonicare For Kids users at both time-points. Sonicare For Kids (122 seconds) as compared to the manual toothbrush (83 seconds) at V1 (p=0.012) and Sonicare For Kids (120 seconds) as compared to the manual toothbrush (73 seconds) at V2 (p=0.0001). In video analysis review by an ergonomic expert, use-interaction brush artifacts occurred more frequently with the manual toothbrush than Sonicare For Kids, 1.56 as compared to 0.80.

Conclusion Children aged 7-10 years brushed significantly longer with Sonicare For Kids than the manual toothbrush following immediate product introduction and after a period of home use. Use-interaction comparison suggests that form factor may influence the frequency of artifact occurrence. Supported by Philips Oral Healthcare.

The standard professionals’ recommendation to achieve good dental hygiene is to brush twice a day for 2-minutes. Motivating children to employ this recommendation is an important aspect of achieving compliance. Philips Sonicare power toothbrushes have been evaluated in the past for compliance (brushing duration) in adults, preteens and teens.1,2,3 This study was designed to test brushing duration in an observational setting in 7-10 year old population when using the Philips Sonicare For Kids power toothbrush and a manual toothbrush. The study also evaluated ergonomic manipulations when using the products and its improvement following a period of familiarization of product use.

Introduction

Materials and Methods

Conclusions Children aged 7-10 brushed significantly longer with Sonicare For Kids than with a manual toothbrush at visit 1 and visit 2.•

For the manual toothbrush group, duration diminished, visit 1 to visit 2 following a period of familiarization per usual routine.•

More variability in brushing duration is evident in the manual toothbrush group versus Sonicare For Kids.•

There are nearly twice as many artifacts per brush cycle for users with manual toothbrushes in comparison to electric toothbrush users at all time points.•

Use-interaction comparison suggests that form factor may influence the frequency of artifact occurrence.•

Test Devices• Philips Sonicare For Kids (Philips Oral Healthcare, Snoqualmie, WA)• Oral-B Stages 4 manual toothbrush (P&G Co., Cincinnati, OH)

Crest Cool Mint Gel toothpaste • (P&G Co., Cincinnati, OH)

Inclusion Criteria• Healthy children, 7-10 years old• Sufficient dexterity to properly use the test products independently

Absence of orthodontic bands• • Predominantly a non-Sonicare user

Variable Total Sonicare For Kids Manual Toothbrush

Enrolled 60 31 29

Completed 60 31 29

Age (mean) 8.7 8.9 8.5

Gender (M) 29 14 15

Gender (F) 31 17 14

Demographics

Results

Use Interaction Brush Artifacts

Vertical Brushing

Obvious Loose Grip

Shoulder Abduction

Obvious Over Grip

Wrist Extension /Hyperextension

Finger Extension

0

10

20

30

40

50

60

# o

f Tot

alO

ccur

renc

es

Vertical Brushing

Shoulder Abduction

Electric Toothbrush: Initial

Electric Toothbrush: Follow-up

Manual Toothbrush: Initial

Manual Toothbrush: Follow-up

10.0

70

80

Wrist Extension/Hyperextension

Obvious Loose Grip

Obvious Over Grip

Finger Extension

0.0 0.0 0.0 0.0

11.8

3.33.33.3

34.0

12.817.6

71.4

50.0

9.5

42.6

13.3

66.7

8.85.95.94.3 6.4

19.0

Manual Visit 1

Sonicare For KidsVisit 1

Manual Visit 2

Sonicare For Kids Visit 2

0.5

1.0

1.5

2.0

2.5

3.0

3.5

Brushing Duration: Sonicare For Kids Versus Manual Toothbrush for Two Visits

Tim

e (M

in)

-10

10

30

50

70

90

110

130

Med

ian

Brus

hing

Tim

e (S

econ

ds)

Brushing Duration in Seconds

Visit 1 Visit 2

Sonicare For Kids

Manual Toothbrush

73

120122

83

1,2Putt et al, Data on File, 2009. 3Milleman et al, Dent Res 85 (spec Iss B): 1306, 2008

References

14 + 2 Days

Visit 1Informed Consent & AssentRandomizationBrushing InstructionsSupervised BrushingVideo RecordingDispense Products

Visit 2 Uninstructed/Unsupervised BrushingVideo RecordingReturn ProductCompensationDismiss

Visit 1

Visit 2

Test Devices

Oral-B Stages 4 ManualSonicare For Kids

Observed brushing in front of the one-way mirror

Brushing Duration: Sonicare For Kids Versus Manual Toothbrush for Two Visits

Brushing-duration and Use-interaction Patterns of Manual Versus Sonic Toothbrushes in Children

Strate J, Defenbaugh J, Master A, Schmitt P, and Jenkins W.Philips Oral Healthcare, Snoqualmie, WA USA

Poster Session: P08/112