Sonic electric toothbrush with app HX9917/89
Highlights
Premium All-in-One brush head
Clean without compromise with the A3
Premium All-in-One brush head. Our all-time
best has angled bristles to help remove up to
20 x more plaque even in hard-to-reach
areas*. Triangular tips work to remove up to
100% more stains in less than two days***. And
longer bristles clean deep for gums that are up
to 15 x healthier in just two weeks**. All that
without ever switching brush heads. Did you
know: brush heads become less effective after
3 months of use? Our BrushSync™ feature can
remind you when it's almost time for a
replacement.
Care for your gums
Click on the G3 Premium Gum Care brush head
to improve your gum health. Its smaller size
and targeted gum line bristles deliver gentle
yet effective cleaning along the gum line,
where gum disease starts. It's clinically proven
to deliver up to 100% less gum
inflammation**** and up to 7 x healthier gums
in just two weeks.****
Progress Report
The DiamondClean 9000 gives you the
guidance you need to improve and maintain
healthy brushing habits in between dentist
check-ups. Built-in smart sensors let you know
when you're using too much pressure, and by
connecting your brushing experience to the
Sonicare app, a personalised Progress Report
helps you stay on track and see how much
you've improved over time.
4 modes, 3 intensities
DiamondClean 9000 comes with Clean,
White+, Gum Health and Deep Clean+ to take
care of your brushing needs. Clean mode is for
exceptional everyday cleaning, White+ is for
removing stains, Gum Health provides a gentle
yet effective clean for gums and Deep Clean+
gives you an invigorating deep clean. Three
intensities allow you to choose between a
higher setting to boost your clean and a lower
one for more sensitive mouths.
Built-in pressure sensor
You might not notice if you're brushing too
hard, but your DiamondClean 9000 will. If you
need to ease up, the toothbrush will make a
pulsing sound. It's a reminder to let your brush
head do the work. 7 out of 10 people found this
feature helped them become a better brusher.
BrushSync mode pairing
Smart brush heads ensure you're using the
right mode and intensity for the best possible
clean. For example, let's say you're using the
W3 Premium White brush head. Your
DiamondClean 9000's BrushSync technology
will automatically sync your brush head with
the White+ mode to help whiten your teeth.
BrushSync replacement reminder
All brush heads wear out over time, so you'll
want to keep an eye on yours to make sure
you're still getting a great clean. Our
BrushSync technology tracks how long you've
been using your brush head for and how hard
you've been brushing. The BrushSync
replacement reminder on your handle and a
short beep remind you when it's time to
replace it.
Long-life battery
Your DiamondClean 9000 will last for up to
two weeks on a single charge with regular use.
