Welcome to Dentra
It's in your hands. Let's begin.
You made a real decision for your gums. This page is everything you need to start strong, and exactly what to expect over your first 30 nights.
Step one
Register your Dentra
in 20 seconds.
Registering activates your 1-year warranty. Do it within 30 days of delivery to lock in your coverage. Included with the Starter Kit and any order with Dentra Guard.
- Handle, motor, light and charging base for 12 months from delivery
- Replacement first, questions second. No return shipping on a covered fault
- All it takes is your order number. It's in your confirmation email, starting with #
What to expect
Your first 30 nights.
Real gum change runs on a timeline. Here's what's normal, what's not, and when to expect the difference.
Get set up right
- Charge fully on the base before the first brush
- One press to start. Tap to cycle your four modes
- Two minutes, morning and night. Bristles tilted into the gum line
A little tingling is normal
- Mild tingling at the gum line as tissue wakes up. Expected
- Extra saliva in the first few sessions is fine
- It settles quickly. Keep going
Don't judge it yet
- Gums may feel different before they look different
- This is the adjustment window. Trust the process
- The visible change comes later, and it's worth the wait
The inflection point
- Less bleeding when you brush
- Less sensitivity to cold and pressure
- Gums that look and feel healthier. Book that hygienist visit
Quick start
Up and running
in four steps.
Nothing to learn. The only thing that changes from your old brush is where you point it.
Charge fully
Set the brush on the round base and let it reach a full charge before first use. Between brushes, that's where it lives.
Press to start
One press powers on. The 660nm and 830nm light comes on with it. Look for the glow through the bristles.
Pick your mode
Tap the power button to cycle Clean, Sensitive, Polish, White. Clean is home. Sensitive for the first week if gums are tender.
2 minutes, 2× a day
The timer pulses every 30 seconds: move to the next quarter. Tilt the bristles into the gum line and let the brush do the work.
The four modes
Same light on every mode.
Pick the feel.
The modes change how the sonic head moves, not what the light does. Tap one.
Clean
Best for: every night
Home base. Full sonic clean with the light on the whole two minutes. If you never touch the mode button again, this is the one you'll be on.
What's in the head
Two wavelengths.
Two depths.
Bristles clean what they touch. The light in the head is aimed at the part they can't: the gum line and below it.
Red. The gum line.
Visible red light, aimed where the gum meets the tooth. The edge you see when you smile.
Near-infrared. Below it.
Just past visible. Longer wavelength, deeper reach, into the pocket where brushes and floss stop.
Toothpaste can't get there. Floss can't. But light can.
Replacement heads
Fresh head every 3 months.
Bristles wear down with use, and a worn head cleans less. Most people swap theirs every 90 days. Set yours to arrive automatically, so you never have to think about it.
- A 2-pack, delivered right when you need it
- Pause, skip or cancel anytime
- Member pricing on every refill
Optional. Your Dentra works perfectly without it. The reminder adds one event to your calendar, nothing else.

Support
A question?
A real person answers.
Stuck on setup, not sure if something's normal, or just want a hand. Write to us and a person on the Dentra support team replies. No bots, no scripts.
Email us at
support@dentraclean.comOr reply to your order confirmation. It lands in the same inbox.
Email supportThe head isn't glowing. Is the light on?
Look at the head from the side in a dim room while it's running. The red 660nm light is visible; the 830nm near-infrared isn't, by design. If you see no red at all, charge it fully and try again. Still nothing? Email us with your order number.
My gums bled the first few nights.
Common in week one, especially if they bled with your old brush. Don't go easier. Keep the two minutes, tilt into the gum line, and let it settle. If it's getting worse after two weeks instead of better, write to us.
How hard should I press?
Barely. The sonic head does the work. Rest the bristles at the gum line at a slight angle and glide. Pressing harder doesn't clean more, it just flattens the bristles.
Can I use my regular toothpaste?
Yes. Any toothpaste. Pea-sized. Nothing about the light changes what you put on the brush.
How long does a charge last, and can I travel with it?
A full charge covers weeks of twice-daily brushing, so a trip without the base is fine. Pack the head cap. Charging is USB-C at the base.
Where's my order number?
Top of your order confirmation email, starting with #. Search your inbox for "Dentra" if it's buried.