At midnight tonight, Amazon Prime Day will be over, and most of the Prime exclusive deals will cease to exist. For anyone who had planned to use the sale to save some money on a new electric toothbrush, the time has come to hit that ‘buy now’ button.Throughout the event, myself and the Indybest team have been monitoring the price of top-rated products, from Apple Airpods to the Dyson Airwrap. These are the products we recommend buying, not just because they're on sale, but because they're actually worth your money, having been thoroughly tried and tested by our experts.That’s why the best electric toothbrush deal is, for us, a 65 per cent discount on the Oral-B iO3 (was £169.99, now £59.99,Amazon.co.uk), as it features in senior shopping writer Lucy Smith's definitive best electric toothbrush review.Admittedly, electric toothbrush prices are notorious for fluctuating, but while deals like this aren’t rare, they’re still impressive.Keep reading for all the details you need to know before the sale ends tonight.Best Prime Day electric toothbrush deals at a glanceBest overall deal – Oral-B iO3 electric toothbrush: Was £169.99, now £59.99, Amazon.co.ukBest deal for kids – Oral-B iO kids: Was £100, now £32.40, Amazon.co.ukBest premium sonic option – Philips sonicare DiamondClean 9000: Was £549.99, now £198.99, Amazon.co.ukRead more: Our favourite Elemis cleanser is reduced for Prime DayBest Oral-B electric toothbrush Prime Day dealOral-B iO3 electric toothbrush: Was £175, now £59.99, Amazon.co.uk(Oral-B)The Oral-B iO3 uses Oral-B’s iO technology to remove more plaque, while a built-in pressure sensor helps protect your gums from overbrushing. It also offers three cleaning modes and a rechargeable battery designed for everyday use.In her Oral-B iO3 review, expert tester Lucy Smith wrote: “I enjoyed everything from the quadpacer vibrations that prompt you to move to the next section of your mouth to the pressure sensor light beneath the brush head, which gives a clear visual cue if you’re brushing too hard or too lightly.” Plus, she added that it’s two-week battery life meant it was “more than dependable” for daily use.The toothbrush even comes approved by dentists with aesthetic dentist Dr Edoardo Felici explaining that this particular model “strikes a good balance between affordability and functionality. It includes pressure sensors and a timer, which are two of the most important features I look for”. Right now for Prime Day, the iO3 is reduced from £175 to an incredible £59.99. So, what are you waiting for?Buy nowMore electric toothbrush Prime Day dealsOral-B iO2 electric toothbrush: Was £100, now £74, Amazon.co.uk(Oral-B)The Oral-B iO2 is one of the cheapest toothbrushes in the iO range, but this doesn’t mean you’re missing out on quality. “It gives you the same core, high-end cleaning technology that makes the iO series so good, while stripping away all the expensive extras you don’t actually need,” said Steve Hogarty in his Oral-B iO2 review. “What you get is the powerful oscillating brush head, the essential pressure sensor, one-button operating and the two-minute time.” Now, it has a discount of more than 25 per cent this Prime Day.Buy nowOral-B iO10 electric toothbrush: Was £830, now £279.99, Amazon.co.uk(Oral-B)Another model that featured in our round-up of the best Oral-B toothbrushes, Lucy Smith, said the iO10 “combines the polished cleaning performance you’d expect from a top-of-the-line brush with some of the most useful feedback tech out of all of Oral-B’s toothbrushes”.She particularly loved the included magnetic charging dock, writing that it “mirrors your real-time cleaning progress through six illuminated bars circling the base, gradually turning white as it marks each zone effectively clean”.This premium electric toothbrush is also on sale for Prime Day, down in price to £279.99 from £830.Buy nowOral-B iO Kids: Was £100, now £32.40, Amazon.co.uk(Oral-B)One of our tester’s favourite toothbrushes for kids has been reduced by more than 60 per cent this Prime Day. According to our reviewer, it's an “excellent first foray in powered brushing, giving kids an incentive to keep cleaning and parents just enough feedback to keep them in the loop”. It “automatically adjusts oscillations if a child presses too hard, providing reassurance when dealing with sensitive gums and wobbly milk teeth”, they noted.Buy nowPhilips Sonicare diamondclean prestige 9900: Was £549.99, now £198.99, Amazon.co.uk(Philips)With the savings you’ll garner on this toothbrush, you’d have enough money spare to buy a whole Dyson airwrap i.d. This model was oral care aficionado Lucy Smith’s top pick for people who love app functionality and, in her guide to the best electric toothbrushes, she praised its bluetooth-powered features, writing: “If halitosis (bad breath) or decay are concerns, the app’s 2D mouth mock-up is genuinely impressive.” If that doesn’t sway you, this £351 discount is hard to pass up.Buy nowOral-B iO9: Was £196.06, now £162.99, Amazon.co.uk(Amazon)Secure a modest saving on the Oral-B iO9. After putting it to the test, tech expert Jon Axworthy praised the toothbrush’s powerful cleaning and its helpful AI to improve your brushing. "Oral-B has succeeded in delivering a robust yet gentle clean throughout all the modes and the settings," said Jon in his Oral-B iO9 review. “When you’re done, the display shows you the remaining battery life, and you’ll get feedback for your brushing in the form of a smiley or sad face”, he added.Buy nowPhilips Sonicare 7100 electric toothbrush, 2 pack: Was £499.99, now £210.99, Amazon.co.uk(Amazon)This Philips deal is a true steal, with the 2-pack not only reduced by 58 per cent, but coming in cheaper than the single by £29.99 (£239.99, Amazon.co.uk). According to oral care wizz Daisy Lester, in IndyBest's guide to the best electric toothbrushes, the brush is a top pick for those with sensitive teeth and gums. "As someone who suffers from gum sensitivities, I found it delivers an impressive cleaning performance with a handful of smart features that don’t overcomplicate the simple task of brushing your teeth," she wrote.Buy nowOrdo sonic+ electric toothbrush: Was £59.99, now £35.99, Amazon.co.ukIn IndyBest's guide to the best electric toothbrushes, senior reviewer Daisy Lester dubbed the Ordo sonic+ the best budget model, and it's even more affordable today with a generous 40 per cent reduction. After testing, she found that it "provides a thorough clean, thanks to four brushing modes and a built-in timer."Buy nowWant to know more about Prime Day? Read our tips for shopping the sales