Philips Sonicare's advanced sonic technology. Philips Sonicare electric toothbrush's unique dynamic action gently and effectively reaches deep between teeth and along the gumline. Whitens teeth in just one week. Click on the W2 Optimal White brush head to remove surface stains and reveal a whiter smile. With its densely packed central …Jun 19, 2018 ... We explain what BrushSync technology is and how it works. BrushSync is an innovative piece of technology made up of 2 different features, ...May 3, 2022 ... Jon gives his recommendations on the best Sonicare electric toothbrushes. This includes the best budget, overall and most advanced models.Philips Sonicare 3100 series Sonic electric toothbrush HX3671/13. Overall Rating / 5. Reviews Reviews-{discount-value} Images ; Philips Sonicare 3100 series Sonic electric toothbrush HX3671/13. Overall Rating / 5. Reviews Reviews; Goodbye manual toothbrush. Hello Sonic technology. Sonic technology combined with our brush action gently …Philips Sonicare - 4100 Power Toothbrush is a game changer. ". Remove plaque and experience a deep, effective clean with Sonicare technology, removing up to 7x more plaque vs. a manual toothbrush. Sonicare technology gently pulses water between your teeth, for a month's worth of manual brushing in just 2 minutes. Technical specifications Battery AAA alkaline Operating time (full to empty) Up to 90 days Design and finishingSleek and compact. The Sonicare 9900 Prestige experience is about big technology delivered with style and compactness. The toothbrush is 18 mm shorter than its predecessor and features premium materials to make this luxurious device easy on the eye, and pleasant to the touch.Philips Sonicare ProtectiveClean 4300 Sonic electric toothbrush. Sonic electric toothbrush. HX6800/87. Whiter teeth. Gently does it. Feel the difference of a gentle clean with our Pressure Sensor while whitening your teeth in 1 week. See all benefits. Whiter teeth. Gently does it.Philips Sonicare 4300 Series Sonic electric toothbrush. HX3684/23. Goodbye manual toothbrush. Hello Sonicare. Sonicare technology combined with our brush action gently removes up to 7x better* plaque than a manual toothbrush. See all benefits. Goodbye manual toothbrush. Hello Sonicare.Philips Sonicare Toothbrushes | Philips - Boots. Save 10% when you spend £50 across almost everything with code SAVE10 Online only. Hurry, ends soon!Philips Sonicare Philips One by Sonicare Battery Toothbrush . HY1100/56 . The One that cleans better; The One for on-the-go; The One without hassle; The One in multiple colors; Overall rating / 5. View product . Compare . Not sure which one to buy? Select up to three products and compare them! Philips Sonicare ProtectiveClean 4300 Sonic electric …Philips Sonicare Prestige je nejchytřejší a nejstylovější kartáček od Philips. Díky unikátní sonické technologii s vysokou frekvencí 62 000 pohybů za minutu a nové hlavici Sonicare Prestige A3 odstraní až 20× více plaku než manuální zubní kartáček. Je vybavený revoluční technologií SenseIQ, která vnímá vaše čištění, přizpůsobí se mu a intuitivně pečuje o …Philips One by Sonicare. 90 day AAA battery. Microvibrations gently clean and polish. 2 minute SmarTimer. On-the-go brushing. Includes one brush, travel case and pre-installed AAA battery. Choose your color: Miami. Buy from Retailers.Philips Sonicare 9900 Electric Toothbrush Review 2024 (Best Overall) The Philips Sonicare 9900 Electric Toothbrush goes beyond the traditional expectations of an electric toothbrush by infusing it with groundbreaking features that cater to a modern, tech-savvy user.. Combining Artificial Intelligence, adaptive sensors, and a user-friendly app, …Philips Sonicare 2 Series HX62xx Battery Replacement · Open and dismantle handle · De-solder PCB connections for original battery · Remove and replace battery&...Philips Sonicare 4100 Series Sonic electric toothbrush HX3683/54. Overall Rating / 5. Reviews Reviews-{discount-value} Images ; Philips Sonicare 4100 Series Sonic electric toothbrush HX3683/54. Overall Rating / 5. Reviews Reviews; Goodbye manual toothbrush. Hello Sonicare. Sonic technology combined with our brush action gently removes stains …Philips Sonicare 4100 Series Sonic electric toothbrush. Sonic electric toothbrush. HX3681/26. Goodbye manual toothbrush. Hello Sonicare. Sonicare technology combined with our brush action gently removes up to 7x better* …Philips Sonicare’s clinically proven technology pulses fluid between teeth & along the gum line as 62,000 brush strokes per minute gently & effectively remove plaque improving gum health. Replacement reminder. Your toothbrush will automatically alert you when it's time for a new brush head.Up to 7x healthier gums* in just 2 weeks. Focus on improving your gum health with the G3 Premium Gum Care brush head. Its smaller size and targeted gum line bristles make it the perfect way to keep this area gum disease free. People who use this brush head have up to 100% less gum inflammation* and up to 7x healthier gums in just two weeks.*. Philips Sonicare 9900 Electric Toothbrush Review 2024 (Best Overall) The Philips Sonicare 9900 Electric Toothbrush goes beyond the traditional expectations of an electric toothbrush by infusing it with groundbreaking features that cater to a modern, tech-savvy user.. Combining Artificial Intelligence, adaptive sensors, and a user-friendly app, …Philips Sonicare DiamondClean 9900 Prestige electric toothbrush. Sonicare 9900 Prestige with SenseIQ technology is our most advanced power toothbrush. It enhances our proven sonic technology with intelligence, sensing your every move and adapting the clean in real time, so you always get it right. Removes up to 20x more plaque.¹. The Philips Sonicare C2 Optimal Plaque Control brush head syncs with your BrushSync™ enabled Philips Sonicare toothbrush handle**, selecting the optimal brushing mode and intensity level for exceptional cleaning. All you need to do is start brushing. Always know when to replace. Always get an effective clean. Improves gum health in only two weeks. Performance. Removes up to 10x more plaque*. Speed. Up to 62000 brush movement/min. Whitening benefits. Whitens teeth 2X better*. Timer. Quadpacer and SmarTimer.With our most advanced toothbrush – Sonicare 9900 Prestige -- the app works in harmony with your brush to access the full range of benefits, including: - Real-time guided brushing to brush your best. - SenseIQ to sense and automatically adapt your brushing style. - Auto-sync to update without your phone nearby.Philips Sonicare’s superior Sonic Technology pulses fluid between the teeth and along the gum-line whilst sonic brush-strokes gently and effectively remove plaque to improve gum health. Number one power toothbrush brand worldwide . Clinically proven. All Sonicare toothbrushes and brush heads are clinically tested to consistently ensure the most …Philips Sonicare’s unrivalled sonic technology creates gentle vibrations and a dynamic fluid action that propels caring microbubbles between your teeth—giving you an incredibly deep, clean feeling. That’s why Philips Sonicare is the #1 most recommended sonic toothbrush brand by dentists worldwide. Compared to a manual toothbrush.Our best ever toothbrush, for complete oral care. The DiamondClean Smart is our best toothbrush, for complete care. Three high-performance brush heads let you focus on all areas of your oral health, and our Smart Sensor technology gives you personalized feedback and coaching. See all benefits.Philips Sonicare is a gentle electric toothbrush for braces (brush heads wear out sooner when used on braces), and is safe for dental restorations (fillings, crowns, veneers) and periodontal pockets, too. Two-minute timer helps ensure recommended brushing time. 2-minute timer on this Philips Sonicare electric toothbrush helps ensure dental …Philips Sonicare. 209039 likes · 241 talking about this. You seek innovation in every aspect of your life. So don't stop when it comes to oral hygiene....Philips Sonicare 3100 series Sonic electric toothbrush. Sonic electric toothbrush. HX3671/14. Goodbye manual toothbrush. Hello Sonic technology. Sonic technology combined with our brush action gently removes plaque up to 3x better* than a manual toothbrush. See all benefits.The Philips Sonicare ExpertClean 7300 sonic electric toothbrush removes up to 10x more plaque than a manual toothbrush and is proven to improve oral health. Free shipping on orders over $25 2-5 business day delivery Dec 29, 2020 ... Jon gives his verdict on the Philips One by Sonicare. This is a compact toothbrush powered by a removable AAA battery.Philips Sonicare Genuine E-Series Replacement Toothbrush Heads, 2 Brush Heads, White, Frustration Free Packaging, HX7022/30 4.7 out of 5 stars 3,708 1 offer from $34.96 Nov 1, 2023 ... 17:09. Go to channel · 【科技說】6款暢銷電動牙刷｜Oral-B歐樂B、飛利浦Philips ... 【Sonicare VS Oral-B】1對1實測飛利浦/歐樂B電動牙刷， 我會推薦哪個 ...Includes: 1 Philips Sonicare 1100 electric toothbrush, 1 SimplyClean (C1) brush head, and 1 USB charger (wall adaptor not included) Subscribe & Save on genuine Philips Sonicare brush head replacements and save up to 15%. Report an issue with this product or seller. Similar item to consider Amazon Basics Anti-Plaque Pro Sonic Rechargeable …Mar 27, 2020 ... Find out if the DailyClean 1100 is any good. A detailed hands-on and opinion video, that comes after several weeks of testing.The Philips Sonicare G2 Optimal Gum Care brush head syncs with your BrushSync™ enabled Philips Sonicare toothbrush handle**, selecting the optimal brushing mode and intensity level for exceptional gum care. All you need to do is start brushing. Always know when to replace. Always get an effective clean. Brush heads become less effective after ...Philips Sonicare Zahnbürsten arbeiten mit Schalltechnologie. Bürstenköpfe bewegen sich bis zu 62 000 Mal pro Minute und erzeugen Mikrobläschen, die die Reinigung der Zahnzwischenräume unterstützen. Es ist klinisch erwiesen, dass sie eine hervorragende Reinigung im Vergleich zu einer Handzahnbürste bieten. Sonicare Try&Buy.Competitively priced, the 1100 Series is the best Sonicare toothbrush on a budget. The slim handled brush cleans the teeth well. It boasts a 2 minute timer and pacer, which are essential features of any good electric toothbrush. The biggest downside is that it lacks a pressure sensor, which is a useful feature for preventing you from brushing ...The Philips Sonicare C2 Optimal Plaque Control brush head syncs with your BrushSync™ enabled Philips Sonicare toothbrush handle**, selecting the optimal brushing mode and intensity level for exceptional cleaning. All you need to do is start brushing. Always know when to replace. Always get an effective clean. Philips Sonicare AirFloss Pro/Ultra is clinically proven to improve gum health as much as floss.** Helps improve gum health in as little as two weeks. Takes just 60 seconds: Point, Press, Clean! With the AirFloss Pro/Ultra, cleaning your entire mouth takes less than 60 seconds a day. Simply select your burst frequency (single, double or triple), and hold …Přesně tolik pohybů zvládnou vlákna kartáčku Philips Sonicare za jedinou minutu. Sonická technologie od Philips Sonicare kombinuje stíravý a pulzující pohyb, takže plak na zubech a dásních napřed naruší a následně odstraní. Stačí přikládat kartáček pod úhlem 45 stupňů k místu, kde se zub dotýká dásně, a takto ...好市多代購 飛利浦Sonicare智能鑽石刷頭7入HX6067 下訂單後~立即代購寄送 非囤貨出售 超低價 . $1,445. 彰化縣彰化市 · philips飛利浦電動牙刷sonicare ...Philips Sonicare Electric Toothbrush 3100 Series with Sonic Technology, Up to 3x Plaque Removal, Better Interdental Cleaning, Built-in Pressure Sensor, Easy Start Tech, QuadPacer, 2-minute Smart Timer, 14 Day Charge.Philips Sonicare has your whole mouth covered. Get everything you need for a healthy mouth and smile with Philips Sonicare. For superior results, Sonicare products are designed and approved by dental professionals. And, with over 100 years of healthcare expertise, Sonicare strives to give you confidence that you’re improving your oral health. Philips Sonicare’s clinically proven technology pulses fluid between teeth & along the gum line as 62,000 brush strokes per minute gently & effectively remove plaque improving gum health. Replacement reminder. Your toothbrush will automatically alert you when it's time for a new brush head.Toothbrush Replacement Heads for Philips Sonicare, Electric Replacement Brush Head Compatible with Phillips Sonicare C2,HX6250,HX6530 and All Snap-On Toothbrushes,8 Pack Brush Heads for Sonic Care. Adult. 1 Count (Pack of 8) 26. $1599 ($2.00/Count) Save $6.00 with coupon. FREE delivery Tue, Jan 23 on $35 of items shipped by Amazon.Philips Sonicare 2 Series. With advanced sonic technology, it improves the dental health by protecting your teeth and gums. Even without perfect toothbrushing technique. Custom design. Gentle & effective. Smart timer. 2 week battery life. Get started. Philips Sonicare electric toothbrush's unique dynamic action gently and effectively reaches deep between teeth and along the gumline. Naturally whiter teeth with patented sonic technology The dynamic cleaning action of this toothbrush and the direct broader contact with each tooth, has proven to remove everyday stains, to help keep teeth naturally whiter.Sonicare Electric Toothbrush - | No 1 Dentist Recommended Sonic Toothbrush | Ideal for Sensitive Gums | HX3641/11HX3641-11. 2,299 2,599. Shop Philips Sonicare Electric Toothbrush by Sonic Technology, Up to 7x Plaque Removal, HX6807/24 online in India at Philips E-Shop. Take your oral care routine to the next level with this advanced electric ...The Sonicare DiamondClean 9000, 9300, 9500 and 9750 are Philips's top-end electric toothbrushes with Bluetooth connectivity so you can link the handle to the Philips app on your phone.The Philips Sonicare ExpertClean 7300 sonic electric toothbrush removes up to 10x more plaque than a manual toothbrush and is proven to improve oral health. Free shipping on orders over $25 2-5 business day delivery Quad Stream Technology. Unique X-shaped nozzle creates 4 streams for up to 99.9% plaque removal¹. Quad Stream covers more area and requires less technique than a single stream nozzle, for fast and effective flossing.Sleek and compact. The Sonicare 9900 Prestige experience is about big technology delivered with style and compactness. The toothbrush is 18 mm shorter than its predecessor and features premium materials to make this luxurious device easy on the eye, and pleasant to the touch. This Philips Sonicare power toothbrush features a special Smartimer to help you meet the dentist-recommended brushing time of two minutes . Quadpacer interval timer encourages thorough brushing. Features a Quadpacer interval timer to help encourage thorough brushing of the entire mouth. The toothbrush beeps every 30 seconds, signifying that it ...Nov 25, 2021 ... ... Sonicare DiamondClean 9750 只要$198：https://amzn.to/3cLMr2T ♥️ 最新 ... Philips Sonicare 9900 Prestige Review. Electric Teeth•109K views · 17 ...Philips Sonicare 4100 Series Sonic electric toothbrush. Sonic electric toothbrush. HX3681/26. Goodbye manual toothbrush. Hello Sonicare. Sonicare technology combined with our brush action gently removes up to 7x better* …Philips Sonicare's advanced sonic technology pulses water between teeth, and its brush strokes break up plaque and sweep it away for an exceptional daily clean. Safe & gentle on sensitive areas, orthodontics & dental work. You can be sure of a safe brushing experience: our sonic technology is suitable for use with braces, fillings, crowns, and veneers, and …Sonicare Replacement brush heads ; Philips One by Sonicare ; Power Flosser ; Teeth whitening ; Learn more about oral health ; Sonicare subscriptions ; Spare Parts ; For Men. Personal care. ... Philips makes no representations or warranties of any kind with regard to any third-party websites or the information contained therein.Philips Sonicare Electric Toothbrush 3100 Series with Sonic Technology, Up to 3x Plaque Removal, Better Interdental Cleaning, Built-in Pressure Sensor, Easy Start Tech, QuadPacer, 2-minute Smart Timer, 14 Day Charge. HX3671/14 : Amazon.in: Health & Personal CarePhilips Sonicare. 209039 likes · 241 talking about this. You seek innovation in every aspect of your life. So don't stop when it comes to oral hygiene....Philips Sonicare electric toothbrush's unique dynamic action gently and effectively reaches deep between teeth and along the gumline. Naturally whiter teeth with patented sonic technology The dynamic cleaning action of this toothbrush and the direct broader contact with each tooth, has proven to remove everyday stains, to help keep teeth naturally whiter.Feb 26, 2023 ... 別偷懶刷牙了！誰說刷牙很煩？別再為口腔問題煩惱煥發笑容的秘密武器！飛利浦PHILIPS Sonicare 9900 Prestige HX9996 HX6950 HX685T #非業 ...Jan 16, 2024 ... ... 入門牙刷比較真實心得分享，飛利浦電動牙刷PHILIPS Sonicare 9900 Prestige HX9996 HX6950 HX685T #非業配. 琮哥•3.5K views · 14:09. Go to channel · [ ...wireless technology Connects the toothbrush handle and microchip-enabled smart brush heads to the Philips Sonicare app on the patient’s smartphone, where brushing data is stored. Premium plaque control brush head. Our deepest cleaning brush head. With soft, flexible sides, the bristles contour to the shape of each tooth’s surface to remove up to …Sonicare Brush Heads; Premium All-in-One Brush Head; Premium Plaque Control; Premium Gum Care; Premium White; DiamondClean; Optimal Plaque Control; Optimal Gum Care; Sensitive; SimplyClean; Variety Packs; AccessoriesElektryczna szczoteczka soniczna - Philips Sonicare Protective Clean 5100 HX6859/29 na MAKEUP — najlepsza cena, darmowa dostawa, opinie klientów.Philips Sonicare Electric Toothbrush 3100 Series with Sonic Technology, Up to 3x Plaque Removal, Better Interdental Cleaning, Built-in Pressure Sensor, Easy Start Tech, QuadPacer, 2-minute Smart Timer, 14 Day Charge.An effortless deep clean. Philips Sonicare toothbrushes operate with sonic technology. Brush heads move up to 62,000 times per minute, creating microbubbles that support cleaning between teeth. They are clinically proven to deliver a superior clean compared to a manual toothbrush while being more gentle on teeth and gums. Cu Philips Sonicare te bucuri de cel mai sănătos zâmbet, garantat sau primești banii înapoi! În perioada 15 Ianuarie – 31 Decembrie 2024, încearcă periuțele de dinți Philips Sonicare la tine acasă 30 de zile, și dacă nu se ridică așteptărilor tale, primești garantat banii înapoi.Cu Philips Sonicare te bucuri de cel mai sănătos zâmbet, garantat sau primești banii înapoi! În perioada 15 Ianuarie – 31 Decembrie 2024, încearcă periuțele de dinți Philips Sonicare la tine acasă 30 de zile, și dacă nu se ridică așteptărilor tale, primești garantat banii înapoi.The Philips One by Sonicare is a battery operated toothbrush with a sleek, lightweight design and a portable case for easy travel. Free shipping on orders over $25 2-5 business day deliveryPhilips Sonicare DiamondClean 9000 Series Power Toothbrush Special Edition . HX9911/73 . Connected app tracks progress; Built-in pressure sensor; Smart brush head recognition; 4 modes, 3 intensities; 4.4 (170 reviews) Overall rating 4.4 / 5. Overall rating 4.4/ 5 (170) View product ...Electric toothbrushes (3) Electric toothbrushes. (. 3. ) Discover the Philips. Learn why these Philips One by Sonicare suit your needs. Compare, read reviews and order online.Philips Sonicare Plaque Control Plus Rechargeable Toothbrush HX6254/81 Twin Pack (2 Rechargeable Toothbrushes, 4 Brush Heads, 2 travel cases, and 2 Chargers) 4.5 out of 5 stars 7,179 3 offers from $99.00 Jun 19, 2018 ... We explain what BrushSync technology is and how it works. BrushSync is an innovative piece of technology made up of 2 different features, ...Philips Sonicare ProtectiveClean 4300 Sonic electric toothbrush. Sonic electric toothbrush. HX6807/24. Whiter teeth. Gently does it. Feel the difference of a gentle clean with our Pressure Sensor while whitening your teeth in 1 week. …Philips Sonicare Electric Toothbrush 3100 Series with Sonic Technology, Up to 3x Plaque Removal, Better Interdental Cleaning, Built-in Pressure Sensor, Easy Start Tech, QuadPacer, 2-minute Smart Timer, 14 Day Charge. HX3671/14 Goodbye manual toothbrush. Hello Sonic technology. Sonic technology combined with our brush action …Three intensities. Customize your brushing to your cleaning preferences with the Sonicare ProtectiveClean 5100. Clean mode is standard for superior cleaning. White is the ideal mode for removing surface stains. And Gum Care mode adds an extra minute of reduced-power brushing, so you can gently massage your gums. Show all product features.
Philips Sonicare 3100 Series Sonic electric toothbrush. Sonic electric toothbrush. HX3681/03. Goodbye manual toothbrush. Hello Sonicare. Sonicare technology combined with our brush action gently removes plaque up to 3x better* than a manual toothbrush. See all benefits.. Application templates
Sonicare Try&Buy. Try a new Philips Sonicare electric toothbrush with 12 monthly payments. Free delivery. Cancel and return anytime. Complete freedom to choose between paying monthly, paying off the remaining installments or cancelling and returning within 12 months.BH1022-04. Shop Philips Sonicare Electric Toothbrush No. 1 Dentist Recommended Sonic Toothbrush, Ideal for Sensitive Gums, HX3641/11 …BH1022-04. Shop Philips Sonicare Electric Toothbrush No. 1 Dentist Recommended Sonic Toothbrush, Ideal for Sensitive Gums, HX3641/11 …Choose from 3 modes. Three modes. Three intensities. Customize your brushing to your cleaning preferences with the Sonicare ProtectiveClean 6100. Clean mode is standard for superior cleaning. White is the ideal mode for removing surface stains. And Gum Care mode adds an extra minute of reduced-power brushing, so you can gently massage your gums.Feb 26, 2023 ... 別偷懶刷牙了！誰說刷牙很煩？別再為口腔問題煩惱煥發笑容的秘密武器！飛利浦PHILIPS Sonicare 9900 Prestige HX9996 HX6950 HX685T #非業 ...The Philips Sonicare range of series provides an effortless and effective solution for daily cleansing and maintaining stronger gums with superior cleaning. The Sonic technology in these series removes plaque three times more than the standard manual brushing by making 31,000 brush strokes per minute. * This technology utilizes micro …Sleek and compact. The Sonicare 9900 Prestige experience is about big technology delivered with style and compactness. The toothbrush is 18 mm shorter than its predecessor and features premium materials to make this luxurious device easy on the eye, and pleasant to the touch. Feb 14, 2018 · Philips Sonicare Plaque Defence Brushsync Têtes de Brosses 4 unités est conçue pour une élimination optimale de la plaque dentaire, elle en élimine 7 fois plus qu'une brosse à dents manuelle. Philips Sonicare Plaque Defence Brushsync Têtes de Brosses 4 unités est faite avec des brins densément implantés pour un nettoyage efficace et ... Oct 6, 2023 ... philips #飛利浦#電動牙刷突如其來的電動牙刷故障，讓我刷牙好沒安全感，爬文爬到眼睛痠痛，最終選了這支兼具顏質與實用的電動牙刷，希望今天的影片也 ...Get everything you need for a healthy mouth and smile with Philips Sonicare. For superior results, Sonicare products are designed and approved by dental professionals. And, …Cu Philips Sonicare te bucuri de cel mai sănătos zâmbet, garantat sau primești banii înapoi! În perioada 15 Ianuarie – 31 Decembrie 2024, încearcă periuțele de dinți Philips Sonicare la tine acasă 30 de zile, și dacă nu se ridică așteptărilor tale, primești garantat banii înapoi.Amazon.com: Philips Sonicare ExpertClean 7500, Rechargeable Electric Power Toothbrush, Black, HX9690/05 : Health & Household.Imagine if your kids asked to brush their teeth. The Sonicare for Kids electric toothbrush and interactive App make your child’s brushing time something to look forward to. Join the 98% of parents who report that Sonicare inspires their kids to brush better and longer. See Sonicare for kids.Philips Sonicare is a gentle electric toothbrush for braces (brush heads wear out sooner when used on braces), and is safe for dental restorations (fillings, crowns, veneers) and periodontal pockets, too. Improves gum health in only two weeks.Philips Sonicare Electric Toothbrush 3100 Series with Sonic Technology, Up to 3x Plaque Removal, Better Interdental Cleaning, Built-in Pressure Sensor, Easy Start Tech, QuadPacer, 2-minute Smart Timer, 14 Day Charge. HX3671/13.Aug 30, 2022 ... Learn the differences between the Sonicare 1, 2, 3 and 4000 Series electric toothbrushes. This video is intended primarily for a US based ...Sonicare Replacement brush heads ; Philips One by Sonicare ; Power Flosser ... Philips makes no representations or warranties of any kind with regard to any third ... Aug 30, 2023 ... The Sonicare app monitors your habits, like if you're reaching all areas of your mouth, how long you brush or how much pressure you're using, ....