What About U-Shaped Toothbrushes?
There are many U-shaped toothbrushes available now that use a mouthpiece full of bristles to brush one section of teeth—or sometimes the entire mouth—all at once in around 30 seconds. We’ve tried a few and think they’re fine to use in addition to regular brushing. None of them are as effective as standard electric toothbrushes. Bill Busch of North Kansas City Dental and Joseph Salim, owner of Sutton Place Dental Associates, agree that these aren’t replacements.
“I find the best use for it is for children and in nursing home environments, where to get quick and easy compliance to brush is critical,” Busch says.
Photograph: Adrienne So
Willo AutoFlo+ Fully Automatic Kids Toothbrush – Starter Kit for $249: This toothbrush is ridiculous. The amount of maintenance is appalling—approximately a 20-minute cleaning cycle with a whole bottle of hydrogen peroxide, every two weeks. The liquid toothbrush bottles ($28) are expensive and don’t have fluoride, and should you lose the included cleaning plug and bottle, it will be impossible to replace. It’s also hard to fit correctly. According to Willo’s size guide, my 7- and 10-year-olds should have had medium brush heads, but they fit the small brush heads. Also, the bubble gum liquid toothbrush flavor tastes disgusting, or so my kids say.
Nevertheless, brushing your teeth isn’t always simple for young kids. It’s a constant battle to make sure my kids brush for an adequate amount of time and get full coverage on the top and bottom, and this toothbrush solves our problems. My kids love it. They just place the vibrating brush head in their mouths and the light-up countdown timer shows them exactly how much time they have left and I can be sure they’ve gotten the back right molars. I’m no longer cleaning up a gigantic smeared toothpaste mess every day because the spit/water/toothpaste mix drains directly into the sink. My 10-year-old finds the Super Scrub setting to be a little harsh, but Daily Clean works great. —Adrienne So
AutoBrush Sonic Pro for $94: AutoBrush is the original in the category, and Medea has tried both the old silicone-bristle model and the new nylon version. She wasn’t wowed by either, but if you want a U-shaped brush and can get this one on sale, try it. You can read about AutoBrush’s study with Salus Research here.
SymplBrush for $99: Former WIRED reviewer Brenda Stolyar used SymplBrush, which looks like a mix of Willo and AutoBrush, and liked it. “I can tell it hits each tooth and each side of it that might be missed with a standard toothbrush,” she says. “It’s a nice, all-around, clean-type feeling.” But she notes that it didn’t always get the buildup around her gumline, so she’d have to go in with a brush anyway. As someone who brushes too hard, she felt this offered a gentler brushing experience for her gums.
Y-Brush DuoBrush Sonic for $80: This is a great option because it has a U-shaped attachment and a standard brush head and isn’t crazily priced. Medea was impressed by how clean her teeth felt, and having both reminded her that she still needed a deep clean in between quick sessions.
More Electric Toothbrushes to Consider
There are far more electric toothbrushes than we can recommend in a single guide. If none of the above options appeal to you, one of these might do the trick.
Courtesy of Laifen
Laifen Wave Special Electric Toothbrush for $90: Laifen’s original toothbrush was fine—it maybe had too much power. The intense vibrations made the whole body buzz and felt a bit too abrasive, especially on the front teeth. But the new Laifen SE fixes all of that. It’s a gentler experience with 26,000 vibrations per minute, enough to be effective without overwhelming sensitive teeth. A 60-degree oscillation pattern helps sweep away plaque, and the thin bristles slip easily between teeth without irritating gum lines. If that isn’t enough, there are 1,000 customization settings via the companion app, letting you fine-tune your dental routine. Plus, extras like a travel mode and an array of pastel colorways make it as stylish as it is thoughtful.
Snow LED Whitening Electric Sonic Toothbrush for $79: I found myself leaning toward sensitive options with brands like Moon, but I have been plenty happy with the standard setting for Snow’s LED toothbrush. There are settings for whitening and polishing too. The brush also has blue-light technology built into it to help whiten your teeth even on the non-whitening settings, and I do think mine look a touch brighter after weeks of use—you won’t get the same effect as a true whitening product if you’re looking for serious brightness, but I like that this can help me try to keep the tea stains away. My only complaint is the price, but if you’re looking for something powerful but gentle, this is a great choice. —Nena Farrell
Philips One by Sonicare Toothbrush for $25: This was our original budget pick, but Bitvae’s is more powerful, rechargeable, and cheaper. Still, this one is cute, thin, and offers gentle vibrations for a step above a manual brush. It also comes with a carrying case.
Photograph: Oclean
Oclean X Ultra S Electric Toothbrush for $130: Oclean makes great electric toothbrushes that clean well without vibrating your brain around. They’re a bit pricey, but if you or your kid would benefit from a voice assistant telling you that you’re brushing too fast or applying too much pressure, this particular model might be worth the money. The voice frustrated one of our testers—but maybe that’s a good thing. Oclean brushes connect to the brand’s app where you can access detailed reports about your brushing habits and efficiency, but it isn’t necessary, thanks to the screen on the actual brush itself.
AquaSonic Black Series for $50: This brush also comes with eight brush heads, like the Bitvae above, which is nice for the price. I think it cleans well, but the heads are a bit small, and the whole thing was too vibratey for me, like the body was vibrating the plastic of the brush head more than the bristles.
Compare Top 5 Electric Toothbrushes
Frequently Asked Questions
What’s the Correct Way to Brush Your Teeth?
- Floss before brushing at least once a day, ideally twice (morning and evening). Floss picks, like this refillable version from Quip, are supplementary (not interchangeable).
- Brush at least twice a day, two minutes at a time, 30 seconds for each quadrant. The American Dental Association recommends placing the brush against the gum line at a 45-degree angle and moving the brush in gentle, vertical strokes to not damage the enamel of your teeth. Make sure to clean the inside surfaces, too.
- Be gentle. If your toothbrush bristles look like they’ve been crushed, you’re brushing too hard. You also want to use a soft-bristled brush to prevent gingival injury.
- Don’t forget your tongue. Bacteria builds up on your tongue, which can cause bad breath despite clean teeth. You can use the tongue cleaner that’s on the backside of some brush heads or purchase a separate tongue scraper. I like this one for $10.
- Don’t rinse. If you’re using fluoride toothpaste—which helps prevent tooth decay—you shouldn’t rinse your mouth or use mouthwash right away.
Which Toothbrushes Do Dentists Recommend?
There is a seemingly endless array of electric toothbrushes to pick from, but they generally fall into two categories: sonic and oscillating. (For U-shaped brushes, see above.) The best toothbrush is the one you’ll use twice a day. You can buy the most highly rated toothbrush around, but if it feels weird in your mouth or hurts your gums, you might not want to use it.
Ada S. Cooper, a dentist and consumer adviser spokesperson for the American Dental Association, said that both styles are effective in plaque removal. She notes that you should talk to a dentist about which one will work best for you, and she says to look for the ADA Seal of Acceptance. Most of our picks have it. (If they don’t, that doesn’t necessarily mean they’re bad.)
- A sonic toothbrush looks similar to a manual brush, with an oval brush head. It vibrates gently and quietly, using high-speed side-to-side bristle motion to break up plaque. Sonicare was the first brand to introduce a sonic toothbrush and is probably the most well-known name in the category.
- Oscillating toothbrushes rotate and pulsate—oscillate means to move or swing back and forth—around the whole tooth. They tend to be louder than sonic brushes and might make your head vibrate more while you brush. You will get used to this if you’re new to electric brushes. Oral-B is probably the best-known brand for these types of electric toothbrushes.
What Features Should I Look For in the Best Electric Toothbrush?
In addition to choosing between oscillating and sonic toothbrushes, these are a few other factors that you might want to think about.
- Future costs: You need to replace the brush head about every three months—more if you tend to brush with too much pressure. Heads range in price depending on the brand and type, so it’s a good idea to check beforehand. Oral-B offers various types of heads in packs ranging from $9 for one to $55 for 10. Many brands offer subscriptions for cheaper. You can often find off-brand heads that cost less but work with the handle, though you might not get the same quality.
- Battery life: Electric toothbrushes have either rechargeable batteries or replaceable ones. Battery life depends on the brush, but it could need charging every week to every few months. Do you want to commit to keeping it charged, keeping a spare battery on hand, or do you prefer the ease of a manual brush that works anywhere anytime?
- Brand reputation: If you buy from a brand like Sonicare or Oral-B, there’s a high likelihood that you’ll be able to buy replacement brush heads or get ahold of customer service should you need anything. You can also get this in-store instead of having to order online. We recommend a few newer brands here, many of which only have online storefronts, and there’s no way to predict whether they’ll be around in five years. Some make great brushes, however, so it may be worth it if the initial cost isn’t too high.
How Do I Clean My Electric Toothbrush?
Per the American Dental Association’s advice:
- Rinse your toothbrush well after each use.
- For extra sanitation, soak it in antibacterial mouthwash or clean it in the dishwasher.
- Consider using a UV sanitizer to eliminate microorganisms.
- Always store it upright and let it air dry between uses.
- Replace your toothbrush every three months or sooner if the bristles wear out.
How Do I Dispose of Old Toothbrush Heads?
First, check with your local and state organizations on the disposal methods or restrictions in your area. Some companies offer specialized recycling programs for their products, like Suri and Oral-B’s Recycle On Us program—which only accepts brush heads. You can also repurpose your old toothbrushes for polishing jewelry, scrubbing corners, and other chores.
Do Charcoal Toothbrushes Work?
Charcoal toothbrushes are popular due to claims that activated charcoal can reduce bacteria and whiten teeth. But as of today, there’s limited clinical evidence to support these claims, and many health care providers remain cautious. Some experts say that when used in moderation, charcoal might be safe in certain products. But brushing with it regularly could wear enamel over time.
If you’re curious about trying one, check with your dentist first.
Are Electric Toothbrushes FSA eligible?
According to the FSA, “Electric toothbrushes are not eligible for reimbursement with flexible spending accounts (FSA), health savings accounts (HSA), health reimbursement accounts (HRA), dependent care flexible spending accounts, and limited-purpose flexible spending accounts (LPFSA) because they are general health products.”
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![This former notorious red-light district is now one of the world’s top AI hubs | TechCrunch
What every U.K. AI startup wants to know these days is, how can I get office space in King’s Cross?
The area is so hot that a VC firm allegedly recently won a deal by promising a founder office space in the neighborhood. “We stop at nothing to win deals [for] and to support” founders, “including helping them source office space when needed,” the firm told me when asked about the rumor, declining to confirm or deny any details.
The neighborhood’s popularity began back in 2016 when DeepMind — then newly acquired by Google — moved in. Soon after, a flood of AI startups followed, wanting to be around the Google DeepMind magic. Today, they hope to take advantage of the cluster of AI talent there.
This has transformed King’s Cross into one of the world’s top AI hubs, rivaled only by San Francisco and Beijing. Around London, it’s known by the sobriquet “Knowledge Quarter,” as it’s home to names like OpenAI, Meta, Isomorphic Labs, Cusp AI, Wayne, Recursive, and, a little farther down the road, Synthesia and Anthropic. The European Technology Network (ETN) just moved into a glossy new office nearby, while University College London sits around the corner.
Mixed in with the new developments are trendy food spots like Hoppers and BAO. Hop a train from King’s Cross, and founders can be in Cambridge in 45 minutes to source talent or can be in Paris in two hours to strike a deal.
Who would have guessed that a little more than 20 years ago, this was one of the seediest areas in London?
“In the ’80s, crack and heroin made the area a major narcotics market,” Hussein Kanji, an investor at Hoxton Ventures, said, recalling syringes in tree trunks and gangs patrolling the streets. “In 1982, the local church was occupied by the English Collective of Prostitutes for 12 straight days.” Then, in the early 2000s, a real estate developer had a dream and, well, “now it is the AI hotbed of the United Kingdom,” Kanji said. “What a change.” Around 18 months ago, his portfolio company BioCorteX moved from the neighborhood Holborn to the Jellicoe building in King’s Cross, hoping to be near the action. “Lots going on in London right now,” Nik Sharma, co-founder of BioCorteX, told me. “Lots of hyperscalers moving in.” That includes, reportedly, Jeff Bezos’ AI company Prometheus, which is also said to be in talks to move into the Jellicoe.
There are around 3,600 AI startups in London, which, together, have raised around .1 billion out of the .8 billion raised in the city since late July, according to Dealroom. Since the start of June, AI-related startups have leased more than 1 million square feet of office space in London, according to the real estate firm Knight Frank. With that, prime rents in King’s Cross have risen 18% over the past three years, Chris Dunn, a commercial insight associate at the firm, told me. That percentage represents only the largest leases encompassing at least 10,000 square feet, like the ones OpenAI and Prometheus are signing. The shorter deals go for even more, he said, and now the vacancy rate for conventional office space is just 0.9%. “Demand has outstripped supply,” he continued.
Today, one of the big topics of the area is sovereignty. It was a wake-up call for many when Anthropic shut off access to Mythos and Fable this summer, leaving some in the ecosystem to conclude: “We’d better look after ourselves,” Saul Klein, co-founder of the VC firm Phoenix Court, told me.
Phoenix Court is located in the King’s Cross area and has three portfolio companies in the vicinity, including Olix (which just announced a .3 billion valuation), Early Health and CoMind. Robin Klein, co-founder of the firm, said the shutdown of Fable and Mythos access was a “small but sharp reminder that Europe can’t simply rent its AI capabilities and capacity; it needs to build and hold some of its own.” King’s Cross, he said, is where much of this building is actually happening.
“The bigger question,” he continued, “is whether the U.K. builds the infrastructure, compute, energy, capital, to make this self-reliance durable, rather than just hosting outposts of U.S. labs.”
Image Credits:Phoenix Court
Top founders want to stay
Simon Kohl, founder of Latent Labs, has offices in King’s Cross and San Francisco. The London office, at the moment, is growing faster, and he’s more bullish than ever on the ecosystem, he said. “The mood right now feels less like London trying to catch up and more like London becoming one of the default places to start a serious AI company,” he said. Look around and you are likely to see Wayve testing its autonomous cars. Founded in 2017 by co-founder Alex Kendall, the unicorn is one of London’s biggest success stories.
“Ten years ago, building a frontier AI company from London felt like an unusual choice,” Kendall told me. “Now it feels like an obvious one.” Wayve moved into King’s Cross in 2018 looking for a space that could double as a garage — “a rare combination in Central London,” Kendall said. He has watched the ecosystem mature around him — and it’s now evident that a startup can stay in London, raise serious capital, hire world-class AI talent, and remain globally competitive, he said. Down the street from Anthropic’s new 158,000-square-foot office is the AI agent builder Sierra and the AI video platform Synthesia.
Laura Gonzalez Florez, Synthesia’s chief of staff and head of people, says the company moved into its glossy new office building a year ago to accommodate its growing team. They were drawn to the area for the same reason as everyone else: “It’s very close to the airport … very close to where a lot of investors are,” she said.
Image Credits:Synthesia
Around two-thirds of Synthesia’s engineers are remote, Gonzalez Florez said, letting the company tap into an affordable, international, and diverse talent pool and helping it scale faster. “From London, we can hire and work, without any problem, people from anywhere, from Slovenia to Portugal,” she said.
Unsurprisingly, London’s AI boom is also causing a talent war.U.K. AI job postings have skyrocketed in the past few years, per data from PwC. When Anthropic announced it moved into town earlier this year, it listed, for example, a salary range of £260,000 to £630,000 for a machine learning research engineer when the average salary in London for the same role is around £102,000. Some founders in the U.K., like those in Silicon Valley, are being forced to raise more and bigger rounds to keep up.
“The real test is whether more globally significant AI companies are founded, funded, and scaled from the U.K., while continuing to attract the world’s best talent to build them here,” Zain Ali, founder of the King’s Cross-based AI legal firm Centuro, told me. “If that continues to happen, King’s Cross won’t just be an AI hub. It’ll become one of the U.K.’s most important strategic assets.”
When you purchase through links in our articles, we may earn a small commission. This doesn’t affect our editorial independence.#Thisformernotorious #redlight #districtis #nowone #worlds #top #hubs #TechCrunchUK This former notorious red-light district is now one of the world’s top AI hubs | TechCrunch
What every U.K. AI startup wants to know these days is, how can I get office space in King’s Cross?
The area is so hot that a VC firm allegedly recently won a deal by promising a founder office space in the neighborhood. “We stop at nothing to win deals [for] and to support” founders, “including helping them source office space when needed,” the firm told me when asked about the rumor, declining to confirm or deny any details.
The neighborhood’s popularity began back in 2016 when DeepMind — then newly acquired by Google — moved in. Soon after, a flood of AI startups followed, wanting to be around the Google DeepMind magic. Today, they hope to take advantage of the cluster of AI talent there.
This has transformed King’s Cross into one of the world’s top AI hubs, rivaled only by San Francisco and Beijing. Around London, it’s known by the sobriquet “Knowledge Quarter,” as it’s home to names like OpenAI, Meta, Isomorphic Labs, Cusp AI, Wayne, Recursive, and, a little farther down the road, Synthesia and Anthropic. The European Technology Network (ETN) just moved into a glossy new office nearby, while University College London sits around the corner.
Mixed in with the new developments are trendy food spots like Hoppers and BAO. Hop a train from King’s Cross, and founders can be in Cambridge in 45 minutes to source talent or can be in Paris in two hours to strike a deal.
Who would have guessed that a little more than 20 years ago, this was one of the seediest areas in London?
“In the ’80s, crack and heroin made the area a major narcotics market,” Hussein Kanji, an investor at Hoxton Ventures, said, recalling syringes in tree trunks and gangs patrolling the streets. “In 1982, the local church was occupied by the English Collective of Prostitutes for 12 straight days.” Then, in the early 2000s, a real estate developer had a dream and, well, “now it is the AI hotbed of the United Kingdom,” Kanji said. “What a change.” Around 18 months ago, his portfolio company BioCorteX moved from the neighborhood Holborn to the Jellicoe building in King’s Cross, hoping to be near the action. “Lots going on in London right now,” Nik Sharma, co-founder of BioCorteX, told me. “Lots of hyperscalers moving in.” That includes, reportedly, Jeff Bezos’ AI company Prometheus, which is also said to be in talks to move into the Jellicoe.
There are around 3,600 AI startups in London, which, together, have raised around .1 billion out of the .8 billion raised in the city since late July, according to Dealroom. Since the start of June, AI-related startups have leased more than 1 million square feet of office space in London, according to the real estate firm Knight Frank. With that, prime rents in King’s Cross have risen 18% over the past three years, Chris Dunn, a commercial insight associate at the firm, told me. That percentage represents only the largest leases encompassing at least 10,000 square feet, like the ones OpenAI and Prometheus are signing. The shorter deals go for even more, he said, and now the vacancy rate for conventional office space is just 0.9%. “Demand has outstripped supply,” he continued.
Today, one of the big topics of the area is sovereignty. It was a wake-up call for many when Anthropic shut off access to Mythos and Fable this summer, leaving some in the ecosystem to conclude: “We’d better look after ourselves,” Saul Klein, co-founder of the VC firm Phoenix Court, told me.
Phoenix Court is located in the King’s Cross area and has three portfolio companies in the vicinity, including Olix (which just announced a .3 billion valuation), Early Health and CoMind. Robin Klein, co-founder of the firm, said the shutdown of Fable and Mythos access was a “small but sharp reminder that Europe can’t simply rent its AI capabilities and capacity; it needs to build and hold some of its own.” King’s Cross, he said, is where much of this building is actually happening.
“The bigger question,” he continued, “is whether the U.K. builds the infrastructure, compute, energy, capital, to make this self-reliance durable, rather than just hosting outposts of U.S. labs.”
Image Credits:Phoenix Court
Top founders want to stay
Simon Kohl, founder of Latent Labs, has offices in King’s Cross and San Francisco. The London office, at the moment, is growing faster, and he’s more bullish than ever on the ecosystem, he said. “The mood right now feels less like London trying to catch up and more like London becoming one of the default places to start a serious AI company,” he said. Look around and you are likely to see Wayve testing its autonomous cars. Founded in 2017 by co-founder Alex Kendall, the unicorn is one of London’s biggest success stories.
“Ten years ago, building a frontier AI company from London felt like an unusual choice,” Kendall told me. “Now it feels like an obvious one.” Wayve moved into King’s Cross in 2018 looking for a space that could double as a garage — “a rare combination in Central London,” Kendall said. He has watched the ecosystem mature around him — and it’s now evident that a startup can stay in London, raise serious capital, hire world-class AI talent, and remain globally competitive, he said. Down the street from Anthropic’s new 158,000-square-foot office is the AI agent builder Sierra and the AI video platform Synthesia.
Laura Gonzalez Florez, Synthesia’s chief of staff and head of people, says the company moved into its glossy new office building a year ago to accommodate its growing team. They were drawn to the area for the same reason as everyone else: “It’s very close to the airport … very close to where a lot of investors are,” she said.
Image Credits:Synthesia
Around two-thirds of Synthesia’s engineers are remote, Gonzalez Florez said, letting the company tap into an affordable, international, and diverse talent pool and helping it scale faster. “From London, we can hire and work, without any problem, people from anywhere, from Slovenia to Portugal,” she said.
Unsurprisingly, London’s AI boom is also causing a talent war.U.K. AI job postings have skyrocketed in the past few years, per data from PwC. When Anthropic announced it moved into town earlier this year, it listed, for example, a salary range of £260,000 to £630,000 for a machine learning research engineer when the average salary in London for the same role is around £102,000. Some founders in the U.K., like those in Silicon Valley, are being forced to raise more and bigger rounds to keep up.
“The real test is whether more globally significant AI companies are founded, funded, and scaled from the U.K., while continuing to attract the world’s best talent to build them here,” Zain Ali, founder of the King’s Cross-based AI legal firm Centuro, told me. “If that continues to happen, King’s Cross won’t just be an AI hub. It’ll become one of the U.K.’s most important strategic assets.”
When you purchase through links in our articles, we may earn a small commission. This doesn’t affect our editorial independence.#Thisformernotorious #redlight #districtis #nowone #worlds #top #hubs #TechCrunchUK](https://techcrunch.com/wp-content/uploads/2026/08/DM9A2852.jpg?w=680)

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