The Science Behind Sonicare For Kids

The Science Behind Sonicare For Kids
The Science Behind Sonicare For Kids
Notes from Dr. Joerg Strate
Vice President, Philips Oral Healthcare,
Clinical & Scientific Affairs
Sonicare For Kids—The First Sonicare Power Toothbrush
Designed for Children
Sonicare power toothbrushes have been the benchmark of modern oral hygiene devices
ever since their first introduction nearly two decades ago. The combination of the most
sophisticated technology and a unique user experience has provided patients around
the world with outstanding results. The improvement of oral hygiene and maintenance
of oral health have been recognized as key components of a healthy lifestyle. Establishing
such habits and behaviors in children presents a unique challenge and an oppor tunity.
Dental caries remains the most common chronic childhood disease despite the
continued effor ts to raise awareness of this risk.
Developing a Sonicare power toothbrush specifically designed for the needs of children
seemed overdue. As with any Sonicare power toothbrush, Sonicare For Kids had to
be suppor ted by sound clinical research that validates its high performance compared
to other available solutions. But this Sonicare toothbrush had to do a lot more than
that. The various developmental steps of children, as well as their gradually increasing
dexterity, needed to be reflected in the design of this par ticular Sonicare—a design that
promotes correct brushing habits and helps a child brush independently, a design that
excites children and parents alike and is clinically proven to improve the oral hygiene
behavior of children in different age groups.
The clinical research included here is an impressive testimonial of these accomplishments.
Sonicare For Kids is the first of its kind, and it may change the way we look at prevention
and oral hygiene in children.
Table of Contents
Plaque Removal
1–6
Compliance
7–9
Sonicare For Kids
Plaque Removal
in vivo study
Comparison of plaque removal
by Sonicare For Kids and a manual
toothbrush in children aged 7–10 years
Millleman J, Putt M, Olson M, Master A, Jenkins W, Schmitt P, Strate J. International J Pediatric Dent.
2009; 19:s1
Objective
To compare the plaque removal efficacy and safety of Sonicare For Kids at “high”
setting and Oral-B Stages 4 manual toothbrush (MTB) in children aged 7–10 years
Methodology
Fifty-eight healthy children enrolled in and four withdrew from an IRB approved singleblind, randomized, parallel design study (totaling 32 females, 22 males; mean age 8.3 years).
Informed consent/assent (with parent) was obtained. All subjects abstained from brushing
for 26 ± 6 hours prior to examination visits. At visit 1, subjects were screened for eligibility
(Turesky modified Quigley-Hein Plaque Index (TPI) >1.8). Eligible subjects were enrolled
and instructed on use of both devices (Sonicare For Kids and MTB) in alternating manner
at home (twice daily for two minutes) for a one-week familiarization period. At visit 2,
baseline TPI was performed followed by a randomization and supervised two-minute
brushing session with the assigned device. Post-brushing TPI scores were then obtained.
Safety was assessed in oral soft tissue examinations at visit 2. ANOVA was used for the
primary statistical analysis.
Results
Sonicare For Kids removed significantly more plaque than a manual toothbrush from
the dentition overall (p=0.0001) as well as in hard-to-reach areas, i.e., the posterior
teeth (p=0.0005) and the interproximal spaces (p<0.0001) of children aged 7–10
years. Both toothbrushes were safe to use.
Conclusion
Sonicare For Kids was found to remove significantly more plaque than Oral-B Stages
4 manual toothbrush in children aged 7–10 years. It is also proven safe and gentle on
oral tissues.
50%
47%
45%
44%
43%
Sonicare For Kids
42%
40%
% of Plaque
Reduction
30%
Manual Toothbrush
27%
28%
25%
Overall
(p=0.0001)
Anterior
(p=0.0003)
Posterior
(p=0.0005)
24%
24%
20%
10%
0%
Interproximal
(p<0.0001)
Posterior
Interproximal
(p=0.0003)
1
Sonicare For Kids
Plaque Removal
in vivo study
Comparison of plaque removal by
Sonicare For Kids and a Crest batterypowered SpinBrush for Kids in children
aged 7–10 years
Millleman J, Putt M, Olson M, Master A, Jenkins W, Schmitt P, Strate J. International J Pediatric Dent.
2009; 19:s1
2
Objective
To compare the plaque removal efficacy of Sonicare For Kids at “high” setting and
Crest battery-powered SpinBrush for Kids (“dolphin” and “ice cream cone” handle
shapes) in children aged 7–10 years
Methodology
Fifty-nine healthy children (mean age 8.5 years) participated in an IRB approved
single-blind, randomized, parallel design study. Informed consent/assent (with
parent) was obtained. Subjects abstained from brushing for 26 ± 6 hours prior to
examination visits. At visit 1, subjects were screened for eligibility (Turesky modified
Quigley-Hein Plaque Index (TPI) >1.8). They were instructed on use of both devices
(Sonicare For Kids and Crest SpinBrush for Kids) in alternating manner at home
(twice daily for two minutes) for a one-week familiarization period. At visit 2, baseline
TPI was scored followed by randomization and a supervised two-minute brushing
session with the assigned device. Post-brushing TPI scores were then obtained. Safety
was assessed in oral soft tissue examinations at visit 2. ANOVA was used for the
primary statistical analysis.
Results
Sonicare For Kids removed significantly more plaque than Crest SpinBrush for
Kids (“dolphin” and “ice cream cone” handle shapes) from the dentition overall
(p<0.0001) as well as in hard-to-reach areas, i.e., the posterior teeth (p=0.0001)
and the interproximal spaces (p<0.0001) of children aged 7–10 years. Both
toothbrushes were safe to use.
Conclusion
Sonicare For Kids was found to remove significantly more plaque than Crest
SpinBrush for Kids in children aged 7–10 years. It is also proven safe and gentle
on oral tissues.
Sonicare For Kids
50%
46%
46%
46%
% of Plaque
Reduction
Sonicare For Kids
45%
45%
45%
40%
Crest SpinBrush
- Ice Cream
35%
Crest SpinBrush
- Dolphin
30%
24%
25%
25% 25%
24%
23%
24%
22%
22% 21%
23%
20%
15%
10%
5%
0%
Overall
Anterior
Posterior
Interproximal
Posterior
Interproximal
50%
46%
46%
46%
45%
45%
Sonicare For Kids
45%
Crest SpinBrush
40%
35%
% of Plaque
Reduction
30%
25%
24%
25%
23%
22%
23%
20%
15%
10%
5%
0%
Overall
(p<0.0001)
Anterior
(p<0.0001)
Posterior
(p<0.0001)
Interproximal
(p<0.0001)
Posterior
Interproximal
(p<0.0001)
3
Sonicare For Kids
Plaque Removal
in vivo study
Comparison of plaque removal by Sonicare
For Kids and a manual toothbrush in
children aged 4–7 years in a professionally
applied toothbrushing study
Pelka M, DeLaurenti M, Master A, Jenkins W, Strate J, Wei J, Schmitt P. International J Pediatric Dent.
2009; 19:s1
4
Objective
To compare the plaque removal efficacy of Philips Sonicare For Kids at high and
low settings and Oral-B Stages 3 manual toothbrushes in a professionally applied
brushing session simulating one and two minutes of brushing time in children aged
4–7 years
Methodology
Sixty-eight healthy children (38 females, 30 males; mean age 5.3 years) participated
in an IRB approved single-blind, randomized, split-mouth design study. Informed
consent/assent (with parent) was obtained. Subjects were screened for eligibility
(Turesky modified Quigley-Hein Plaque Index (TPI) >1.8). Eligible subjects were
randomized to Sonicare For Kids high, Sonicare For Kids low and a manual
toothbrush by quadrant and were brushed accordingly by clinical hygienists. TPI
was scored at one- and two-minute interval equivalents by quadrant by a blinded
examiner. Safety was assessed in oral soft tissue examinations. For statistical analysis,
MANOVA for a split-mouth design was applied and P-values were adjusted using
the Dunnett-Hsu adjustment.
Results
Sonicare For Kids (in high and low settings) removed significantly more plaque
than a manual toothbrush from the dentition overall (p<0.0001) as well as in hardto-reach areas, i.e., the posterior teeth (p<0.0001) and the interproximal spaces
(p<0.0001) at one- and two-minute brushing intervals in children aged 4–7 years
with professionally applied brushing sessions. Both toothbrushes were safe to use.
Conclusion
Sonicare For Kids was found to remove significantly more plaque than Oral-B Stages
3 manual toothbrush in children aged 4–7 years with professionally applied brushing.
It is also proven safe and gentle on oral tissues.
Sonicare For Kids
Adjusted Mean Percent Plaque Reduction, Squirt Prototype
7 and 9 Degrees vs. Manual Toothbrush, 1-Minute Equivalent
50%
Sonicare For Kids
- 9 Degrees
45%
41%
43% 42%
42%
41%
40%
39% 40%
38%
Manual Toothbrush
36%
35%
% of Plaque
Reduction
Sonicare For Kids
- 7 Degrees
39%
30%
29%
30%
28%
27%
25%
25%
20%
15%
10%
5%
0%
Overall
(p<0.0001)
Anterior
(p<0.0001)
Posterior
(p<0.0001)
Interproximal
(p<0.0001)
Posterior
Interproximal
(p<0.0001)
Adjusted Mean Percent Plaque Reduction, Squirt Prototype
7 and 9 Degrees vs. Manual Toothbrush, 2-Minute Equivalent
70%
68%
68%
66%
67%
66%
65%
64%
64%
63%
Sonicare For Kids
- 9 Degrees
62%
60%
50%
% of Plaque
Reduction
Sonicare For Kids
- 7 Degrees
49%
49%
49%
47%
47%
Interproximal
(p<0.0001)
Posterior
Interproximal
(p<0.0001)
Manual Toothbrush
40%
30%
20%
10%
0%
Overall
(p<0.0001)
Anterior
(p<0.0001)
Posterior
(p<0.0001)
5
Sonicare For Kids
Plaque Removal
in vivo study
Comparison of plaque removal by
Sonicare For Kids and a Colgate children’s
battery-powered toothbrush in children
aged 7–10 years
Payne D, Rimmer P, Olson M, Master A, Jenkins W, Schmitt P, Strate J. International J Pediatric Dent.
2009; 19:s1
Objective
To compare the plaque removal efficacy and safety of Philips Sonicare For Kids at
“high” setting and Colgate children’s battery-powered toothbrushes (Shrek handle
design) in children aged 7–10 years
Methodology
Sixty-nine healthy children (mean age 8.4 years) participated in an EC approved
single-blind, randomized, parallel design study. Informed consent/assent (with
parent) was obtained. Subjects abstained from brushing for 26 ± 6 hours prior to
examination visits. At visit 2, subjects were screened for eligibility (Turesky modified
Quigley-Hein Plaque Index (TPI) >1.8). Eligible subjects were instructed on use of
both devices (Sonicare For Kids and Colgate children’s battery-powered toothbrush)
in alternating manner at home (twice daily for two minutes) for a one-week
familiarization period. At visit 3, baseline TPI was scored followed by randomization
and a supervised two-minute brushing session with the assigned device. Postbrushing scores were obtained by scoring TPI. Safety was assessed in oral soft tissue
examinations at visit 3. ANOVA was used for the primary statistical analysis.
Results
Sonicare For Kids removed significantly more plaque than a Colgate children’s
battery-powered toothbrush from the dentition overall (p=0.0003) as well as in
hard-to-reach areas, i.e., the posterior teeth (p=0.0037) and the interproximal
spaces (p=0.0002) of children aged 7–10 years. Both toothbrushes were safe to use.
Conclusion
Sonicare For Kids was found to remove significantly more plaque than Colgate
children’s battery-powered toothbrush in children aged 7–10 years. It is also proven
safe and gentle on oral tissues.
70%
70%
66%
65%
62%
60%
53%
56%
51%
53%
50%
% of Plaque
Reduction
Sonicare For Kids
62%
Colgate Battery Toothbrush
51%
40%
30%
20%
10%
0%
Overall
(p=0.0003)
6
Anterior
(p=0.0002)
Posterior
(p=0.0037)
Interproximal
(p=0.0002)
Posterior
Interproximal
(p=0.0028)
Sonicare For Kids
Compliance
in vivo study
Brushing duration and use interaction
patterns of manual versus sonic
toothbrushes in children aged 7–10 years
Defenbaugh J, Schmitt P, Master A, Jenkins W, Schmitt P, Strate J. International J Pediatric Dent
2009; 19:s1
Objective
To compare the brushing duration and use interaction patterns in children aged
7–10 years using a Sonicare For Kids power toothbrush versus Oral-B Stages 4
manual toothbrush
Methodology
Sixty healthy subjects (31 females, 29 males) were enrolled in an IRB approved
randomized, parallel design two-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
two weeks commenced with the assigned product in order for subjects to familiarize
with 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 a
manual toothbrush. A longer median brushing duration was observed for Sonicare
For Kids users at both time points. Sonicare For Kids (122 seconds) compared
to manual toothbrush (83 seconds) at visit 1 (p=0.012). Sonicare For Kids (120
seconds) compared to manual toothbrush (73 seconds) at visit 2 (p=0.0001).
Brushing Duration
130
122
120
Sonicare For Kids
110
90
Median Brushing
Time (Seconds)
Manual Toothbrush
83
73
70
50
30
10
0
Visit 1
(p=0.012)
Visit 2
(p=0.0001)
7
Sonicare For Kids
In video analysis review by an ergonomic expert, use interaction brush artifacts
occurred more frequently with a manual toothbrush than with Sonicare For Kids,
1.56 compared to 0.80.
Use Interaction Brush Artifacts
Vertical Brushing
Shoulder Abduction
Wrist Extension /
Hyperextension
Obvious Loose Grip
Obvious Over Grip
Finger Extension
Use Interaction Comparison
2
Sonicare For Kids
1.808
1.8
Manual Toothbrush
1.558
1.6
1.308
1.4
1.2
# of Artifacts
per Brush Cycle
0.938
1
0.797
0.8
0.656
0.6
0.4
0.2
0
Net Artifacts
8
Artifacts @ Visit 1
Artifacts @ Visit 2
Sonicare For Kids
It was also observed that Sonicare For Kids toothbrush users prefer to grip with
their fingertips, while manual toothbrush users prefer a power grip.
Grip Types
Power Grip Preferred
for Manual Toothbrush
Fingertip Grip Preferred
for Sonicare For Kids
Grip Type Comparison
120
100
# of
Occurrences
Sonicare For Kids: Visit 1
101
87
Sonicare For Kids: Visit 2
80
63
60
40
37
Manual Toothbrush: Visit 1
57
37
43
Manual Toothbrush: Visit 2
27
20
0
Power Grip
Fingertip Grip
For both types of brush, users prefer to grip in the center of the brush handle.
Users did not typically switch between grips or hand location during brushing
cycles or between brushing cycles.
Conclusion
Children aged 7–10 years brushed significantly longer with Sonicare For Kids than
with a 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.
9
Notes
10
© 2009 Philips Oral Healthcare, Inc. All rights reserved. PHILIPS and the Philips shield are trademarks of KPENV. Elite, Sonicare, and the Sonicare logo are trademarks
of Philips Oral Healthcare and/or KPENV.
www.sonicare.com
7005054 05/09
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