Latest news with #oralcare
CNET
8 hours ago
- Health
- CNET
Nano-Hydroxyapatite Toothpaste: The Benefits and Risks of the Fluoride-Free Alternative
As health concerns around fluoride in public drinking water continue to swirl, nano-hydroxyapatite toothpastes are becoming increasingly popular substitutes for fluoride toothpaste. Popular brands include Boka Davids and NOBS (No Bad Stuff), which are touted as fluoride-free alternatives that whiten teeth, repair enamel and prevent cavities. "As ingredient labels shift toward cleaner, fluoride-free formulas, one compound is taking center stage in modern oral care: nano-hydroxyapatite," Dr. Pia Lieb, DDS, cosmetic dentist and clinical assistant professor emerita at NYU College of Dentistry, explains. If you're thinking about replacing your fluoride toothpaste with a nano-hydroxyapatite alternative, this is what dental experts want you to know before you brush your teeth. What is nano-hydroxyapatite? "Nano-hydroxyapatite is a synthetic calcium phosphate compound that's used in some oral care products, including toothpastes," explains Dr. Ada Cooper, consumer advisor and spokesperson for the American Dental Association, says. "[It] has a structure that is similar to hydroxyapatite found in enamel, and nHAP gets incorporated into the tooth structure preferentially in demineralized areas." Nano-hydroxyapatite is also abbreviated as n-HA and n-HAp. Dr. Royce Lai of King Village Dental adds that this is technically a two-part question, since "hydroxyapatite has been around for decades and has been studied for at least 20 years." Newer and less studied, nano-hydroxyapatite is a version of hydroxyapatite with small, rod-shaped particles. "Hydroxyapatite is natural. It is a type of calcium that makes up bones and teeth," says Lai. "Nano-hydroxyapatite relates to the particle size. These are between 20 and 80 nanometers and are much smaller than the hydroxyapatite tubules that are a part of your teeth." According to Dr. Daniela Eversgerd, a cosmetic dentist and the founder of Allure Dental, nano-hydroxyapatite was developed by NASA in the 1970s for astronauts dealing with bone and enamel loss during long periods of space travel. Since the early 1990s, it has been approved for oral care products in Japan. Nano-hydroxyapatite toothpaste benefits "Nano-hydroxyapatite doesn't just protect your teeth -- it helps rebuild them," says Dr. Catrise Austin, a cosmetic dentist, author of Gum Health Made Simple and host of the Let's Talk Smiles podcast. She lists the following as potential nano-hydroxyapatite benefits: Enamel remineralization Tooth sensitivity relief Reduced bacterial adhesion Whitening and gloss enhancement "n-HA can actually fill microscopic cracks and help reverse or arrest early cavities," adds dentist Dr. Sandip Sachar. Austin cites a 2019 study that found a 10% hydroxyapatite toothpaste is equivalent or non-inferior to fluoride toothpaste for preventing and remineralizing dental cavities (or caries) in children. When it comes to teeth sensitivity, Lai cites a 2014 study concluding that 15% nano-hydroxyapatite helped sensitive teeth. "The particle size could get into space and work better than larger particles in micro-hydroxyapatite or fluoride," he explains. "The conclusion was that nano-hydroxyapatite could significantly reduce tooth sensitivity to hot and cold in two to four weeks of use." Referencing an 18-month 2023 clinical trial finding that a 10% n-HAp toothpaste protected adult teeth from new cavities as well as a standard 1,450-ppm fluoride paste, Dr. Christopher Tolmie, DDS, MBA, of PDS Health, states, "By patching enamel and calming swollen gums, nano-hydroxyapatite may cut off a hidden spark of chronic inflammation linked to heart disease and diabetes." Since nano-hydroxyapatite toothpastes are fluoride free, Dr. Yenile Y. Pinto, DDS, functional and biomimetic dentist and founder of Deering Dental, adds, "It's also been shown to reduce sensitivity and strengthen the enamel surface without the risk of fluorosis." Fluorosis occurs when you get too much fluoride as a child, causing white or brown spots on the teeth. The CDC reports that fluorosis typically doesn't affect tooth function and isn't painful. A 2020 systematic review of 32 studies concluded that "Nano-HA is a relatively novel material with outstanding physical, chemical, mechanical and biological properties that makes it suitable for multiple interventions. It outperformed most of the classic materials used in implantology and surgery, but it should be further investigated for bone engineering and caries prevention therapy." HengleinA 2023 comprehensive review found that, while more long-term studies are needed to establish the safety of regular use, "Nanohydroxyapatite is a promising revolutionary material in the prevention of early carious lesion mainly due to a greater source of free calcium." Ultimately, providing a 2021 review and 2022 scoping review, Cooper concludes, "Although there is some evidence that alternative ingredients, such as [nano] hydroxyapatite, prevent tooth decay by acting as a remineralizing or anti-cavity agent, the studies are preliminary. The only anti-cavity agent recognized by the Food and Drug Administration in its over-the-counter monograph is fluoride, a naturally occurring chemical." Cooper adds that all toothpastes with the ADA Seal of Acceptance contain fluoride. The administration specifically recommends brushing your teeth twice a day with fluoride toothpaste and regularly visiting your dentist. Nano-hydroxyapatite toothpaste risks "According to a [2021] narrative review from Odontology, the official journal of the Society of the Nippon Dental University, so far, there have been no reports of adverse dental or systemic effects of HAP-containing toothpastes because HAP has an excellent biocompatibility," states Cooper. According to Austin, the concern with nano-hydroxyapatite is that, because it's made of nanoparticles, some worry about how much might get absorbed into the body if regularly swallowed. "The European Commission's Scientific Committee raised concerns due to the lack of long-term safety data on ingestion, particularly in children," she says. This has led to temporary nano-hydroxyapatite restrictions (not a full-on banning) in Europe. The European Scientific Committee deems nHA safe in toothpaste up to 29.5% and up to 10% in mouthwash, per Tolmie. However, he states, "Regulators still bar it from breath-spray products to avoid lung exposure, so stick to pastes and rinses." Key concerns around nano-hydroxyapatite, according to Lieb, are: Potential ingestion and systemic absorption, especially in nano form Lack of long-term studies in humans on the cumulative effects Unknown impact of inhalation from aerosol products (not toothpaste) In terms of systemic absorption, Sachar specifies, "Because nano-hydroxyapatite particles are similar in composition to bone mineral, there has been some theoretical concern that if absorbed systemically, they could potentially contribute to unwanted calcifications in soft tissues (like blood vessels or kidneys)." However, she states that this is speculative and not supported by any current clinical nano-hydroxyapatite toothpaste only effective at 10%? "Most clinical formulations of nHA range from 5%-15%, with 10% emerging as the benchmark concentration in several Japanese and European studies," answers Lieb. "This concentration has demonstrated reliable enamel restoration while maintaining product stability and usability." However, she states that newer formulations are experimenting with lower concentrations and enhanced delivery systems (such as encapsulation or synergistic minerals), which may improve efficacy at reduced levels. "The effectiveness isn't just about percentage, it's also about particle quality and how it's delivered to the tooth surface," she explains. Tolmie adds, "Effective repair starts as low as 5% and plateaus around 10-15%. Several studies show that 5% n-HAp can mend enamel dings, divots and dents in the teeth, with benefits leveling off somewhere between 10% and 15%. One review even noted that 5% sometimes beats 10% because fewer particles clump, making them easier to slip into enamel defects; hence, most US brands sit comfortably in the 5-10% sweet spot." We also reached out to Dr. Foti Panagakos, who's a part of Boka's Oral Health Advisory Committee. "While there is a lot of discussion around nano-hydroxyapatite concentration and its effectiveness, what matters most is how it is formulated and the fact that the ingredient is backed by research," he explains. "This includes how nano-hydroxyapatite is stabilized, delivered and supported by other ingredients, which is why at Boka, years were spent working with oral health professionals to ensure our formula delivers on both safety and performance. Each tube of Boka toothpaste contains a precisely balanced concentration of nano-hydroxyapatite -- high enough to deliver measurable benefits and safe for daily use, with a formula that's gentle on dentin." Should people replace fluoride toothpaste with nano-hydroxyapatite? Eversgerd states that it all depends on each person's oral health needs. "Fluoride remains the gold standard for cavity prevention, supported by decades of large-scale, randomized controlled trials," she explains. "However, for patients seeking a fluoride alternative -- whether due to sensitivity, allergies, personal preferences or a desire for a biomimetic approach -- nano-hydroxyapatite provides a scientifically supported option." According to the Academy of Biomimetic Dentistry, a biomimetic approach is one in which damaged teeth are restored using materials mimicking natural teeth in function, strength and appearance. For high-risk patients, Eversgerd recommends fluoride, while she may recommend n-Ha to low-risk or fluoride-averse individuals. Austin seconds this, but adds that she also recommends fluoride toothpaste to children with poor brushing habits or communities with limited dental access. "nHA is a great option, but it's not a one-size-fits-all replacement for fluoride -- yet," Austin says. Lieb explains that nHA may also be a compelling alternative for patients with aesthetic concerns, such as whitening-induced sensitivity, and individuals in preventive care regimens post-restorative treatment. Pinto agrees that it depends on the person, stating, "For most of my patients, especially those with low to moderate cavity risk, nano-hydroxyapatite is an excellent option; gentler on the mouth, less drying and effective at rebuilding early damage. For people with high cavity risk, fluoride might still be the best choice, at least short term. For my high-risk patients, I often recommend a combo toothpaste that includes both ingredients when appropriate." Ultimately, if a patient isn't high risk and has health or safety concerns about fluoride, she thinks hydroxyapatite is a great option. When asked if there's a reason people should choose n-HAp over other anti-cavity toothpastes, Tolmie answers, "No, as long as patients are brushing their teeth with an anti-cavity toothpaste. There are differences in the way an n-HAp toothpaste and a fluoride toothpaste work to prevent decay, and some n-HAp toothpastes may feel smoother on the teeth. But anti-cavity toothpastes as a whole accomplish the same task. Do I wash a car with tap water or bottled water? We know that both of them get the job done." What's most important, according to Tolmie, is that patients ensure they're not swallowing toothpaste. What does the American Dental Association think? Cooper states that the ADA recommends brushing teeth twice daily for two minutes with fluoride toothpaste, as the naturally occurring mineral has been proven to remineralize weakened enamel and reverse early signs of tooth decay. "Additionally, the fluoride you take in from drinking water and other beverages continues to provide a topical benefit because it becomes part of your saliva, constantly bathing the teeth and helping to rebuild weakened tooth enamel," Cooper further explains. "The best scientific evidence has shown that adding fluoride to community water supplies is safe and effective. This is backed by decades of research and recognized by more than 100 health organizations." GoodboyDoes nano-hydroxyapatite toothpaste work? All of the dentists we consulted agree that nano-hydroxyapatite toothpaste works, but in the right context and with the right product. It's also not a miracle cure and should not replace your entire oral care routine, dentist's recommendations or regular appointments. Plus, Eversgerd adds that more long-term, large-scale trials are needed to fully validate whether it's equal to fluoride in preventing cavities. When asked if it's effective, Austin says, "Yes -- particularly for enamel remineralization and sensitivity. In my practice, I've seen patients who switched to nHA toothpaste experience noticeable improvements in comfort, plaque control and surface smoothness. But like any product, it works best when paired with consistent brushing, flossing and professional cleanings." Pinto agrees and has also seen the results firsthand. "It helps remineralize enamel, soothe sensitivity and support a healthier oral microbiome, especially when paired with a good routine (good home hygiene, healthy diet, hydration and nasal breathing)," she explains, noting that it's not a miracle cure, but does offer many benefits. On behalf of the ADA, Cooper echoes Eversgerd's earlier statement: "The use of nano-hydroxyapatite (nHAP) in over-the-counter products is growing, and some evidence shows that nHAP may contribute to remineralization, but the evidence is fairly new and often ambiguous, especially regarding clinical indications. " Do experts recommend nano-hydroxyapatite toothpaste? All of the experts we consulted do recommend nano-hydroxyapatite toothpaste, but only for certain patients. After all, according to Austin, "Nearly half of US adults over 30 have some form of gum disease, and you can't out-toothpaste a bad hygiene routine." Brushing your teeth regularly, flossing and regularly visiting your dentist are still essential, no matter what toothpaste you use. Though Lieb recommends nHA toothpaste for adult patients experiencing post-whitening sensitivity or early enamel erosion, low-caries risk individuals seeking natural alternatives and adults undergoing cosmetic dental work who want to protect their investment with gentle, remineralizing care, she doesn't recommend nano-hydroxyapatite for children with deciduous dentition. "In my professional opinion, fluoride remains the safest and most effective option for all patients under 14," says Lieb. "Its protective effect during the development of permanent dentition is unmatched, and its caries-prevention record is well established." Sachar states that she often recommends it for "patients seeking fluoride-free options, those with mild tooth sensitivity and for children at risk of swallowing fluoride toothpaste." However, she advises that patients with moderate to high cavity risk not fully abandon fluoride. Again, it's important to note that the "ADA recommends that adults brush their teeth twice daily with fluoride toothpaste for at least two minutes each time, or as directed by a licensed dentist," according to Cooper. This is because the proposed benefits of nHAP are fairly new and ambiguous. Getty Images The bottom line Though more research is needed, the dentists we consulted explained that nano-hydroxyapatite toothpaste can be an effective alternative to fluoride -- but only in the right context. The ADA doesn't recommend it. It's also not a miracle cure or a replacement for brushing regularly, flossing and professional dental appointments. If you're considering nano-hydroxyapatite toothpaste, consult your dentist first before making the switch. They know your teeth best and will be able to help you find the best toothpaste for your smile.
Reuters
a day ago
- Business
- Reuters
India's Colgate-Palmolive quarterly profit dips on rising competition, tepid urban demand
July 22 (Reuters) - Colgate Palmolive India ( opens new tab reported a decline in first-quarter profit on Tuesday, as feeble urban demand and intensified competition in its core oral care business weighed on sales. The toothpaste maker's net profit fell 12% to 3.21 billion rupees ($37.20 million) in the quarter ended June 30. Revenue from operations for the toothpaste-to-shower gels maker dropped 4.4% to 14.21 billion rupees. For further results highlights, click here. The local arm of Colgate-Palmolive (CL.N), opens new tab, known for its eponymous range of Colgate toothpastes, has said in a prior call with analysts that weak urban demand was causing consumers to use staples such as toothpaste for longer, impacting overall volumes. The company's results in the current reporting quarter reflect subdued urban demand and elevated competition with local players, it said in a statement. Colgate has been sharpening its focus on differentiated offerings that promise higher quality oral benefits to tackle these challenges, leading with a more premium portfolio. Colgate-Palmolive India's peers are yet to report quarterly results. PEER COMPARISON * The mean of analyst ratings standardised to a scale of Strong Buy, Buy, Hold, Sell, and Strong Sell ** The ratio of the stock's last close to analysts' mean price target; a ratio above 1 means the stock is trading above the PT APRIL-JUNE STOCK PERFORMANCE -- All data from LSEG -- $1 = 86.2960 Indian rupees
Yahoo
2 days ago
- Health
- Yahoo
MySmile Oral Care Launches 20% Off Summer Smile Sale
LOS ANGELES, July 21, 2025 /PRNewswire/ -- Ready for your summer smile glow-up? You've got less than 48 hours to grab 20% off sitewide at . From viral must-haves to dentist-approved tech, this Summer Smile Sale is your ticket to a fresher, brighter, healthier grin. Whether you're headed to pool parties, weddings, or your next weekend brunch, this is your last chance to stock up on top-rated essentials that everyone's buzzing about. "This isn't just a sale—it's a celebration of confidence," says Bobby Liu , founder of MySmile. "Our goal is to make powerful, pro-level oral care accessible, easy, and fun. We want everyone smiling their brightest this summer." LP211 Water Flosser – Approved Say goodbye to stubborn plaque and hello to dentist-level freshness. This water flosser is a total game-changer—easy to use, travel-ready, and perfect for keeping your gums summer-photo ready. Essential Sonic Toothbrush – Minimal effort, max results Ditch your manual brush and upgrade to 40,000 vibrations of clean. Multiple modes, sleek design, and results you can feel. If your feed is full of "sonic toothbrush before/after" reels—this is the one. Teeth Whitening Strips ** (New Drop!)** Instant fave. These enamel-safe, low-sensitivity whitening strips are already going viral for a reason. No mess, no fuss—just a brighter smile in days. A must-have for weddings, date nights, and back-to-office moments. 1. How to Whiten Teeth Fast—Without Sensitivity or Strips That Slide Off Teeth whitening is at the top of everyone's summer self-care checklist—but not all whitening methods are created equal. If you're Googling "how to whiten teeth at home fast," the answer isn't baking soda or random TikTok hacks. Instead, opt for dentist-formulated whitening strips that are enamel-safe, peroxide-balanced , and made to stay put even while you talk or sip water . MySmile's new Whitening Strips check all those boxes and deliver a noticeable difference in just a few days—without the zings or discomfort that come with harsher options. Pro Tip: Pair whitening strips with a Sonic Toothbrush to remove surface stains first—this helps your whitening treatments work even faster. 2. Flossing Is No Longer Optional—But You Can Skip the String More people are now searching for "is a water flosser better than string floss?" —and for good reason. Traditional flossing can be awkward, uncomfortable, and easy to skip (especially when you're tired at night). But water flossers , like our top-rated LP211 , make the process faster, easier, and dare we say, kind of satisfying? Clinical studies have shown water flossers remove up to 99.9% of plaque from treated areas, reduce gum inflammation, and improve overall oral health in as little as 2 weeks. Hot girl summer starts with healthy gums. And this flosser is the lazy-genius hack for fresher breath and a cleaner smile. 3. Electric Toothbrushes Aren't Just a Flex—They're Scientifically Superior If you're still brushing manually, it's time for an upgrade. Searches for "electric toothbrush benefits" are booming, and the verdict is in: sonic toothbrushes are significantly more effective at removing plaque, improving gum health, and even reducing coffee and wine stains. The Essential Sonic Toothbrush features 40,000 vibrations per minute , multiple modes for every type of smile (even sensitive teeth!), and a built-in timer so you brush long enough—every time. Plus, the sleek, travel-ready design makes it a no-brainer for summer getaways. TL;DR: Sonic = smoother, cleaner, whiter teeth with less effort. And it looks cute on your sink. Win-win. 4. What's the Best Summer Oral Care Routine? Summer means more iced coffee, BBQ sauce, rosé, and sugary treats—which also means more work for your smile. If you're wondering "what's the best oral care routine during summer?" , here's your three-step glow-up: Brush twice daily with a sonic toothbrush for deep plaque removal. Water floss at least once per day to flush out debris between teeth and reduce gum inflammation. Whiten safely with non-irritating strips that target stains from summer treats. Add a tongue scraper, stay hydrated, and switch to a fluoride toothpaste if you haven't already. With this routine, your summer smile will be selfie-ready 24/7. This is your moment to glow up that grin. Whether you're new to oral care or already a smile-care pro, MySmile's viral essentials are here to help you shine. Shop now at Follow MySmile on Social Media! Instagram @mysmile TikTok @mysmile Youtube @mysmilesofficial Media Contact: For Media, contact Winnie, Digital Marketing Manager at winnie@ MySmile is a leading brand dedicated to revolutionizing oral care with innovative products that deliver professional results from the comfort of your home. Specializing in whitening, gum health, and overall dental wellness, MySmile offers a variety of high-quality oral care solutions, including whitening kits, portable mouthwash, water flossers, and toothbrushes. Available online and at top retailers like Amazon,Target, Macy's, and Kohl's, MySmile is committed to making it easier for people to achieve their dream smile. With a focus on simplicity, effectiveness, and customer satisfaction. View original content to download multimedia: SOURCE MySmile Oral Care Inc. Sign in to access your portfolio
CNET
4 days ago
- Health
- CNET
NOBS Toothpaste Tablets: What Dentists Say About Its Main Ingredient
The NOBS (No Bad Stuff) toothpaste tablets are going viral thanks to their main ingredient of nano-hydroxyapatite, a fluoride-free alternative. As health concerns around fluoride and its presence in public drinking water continue to swirl, nano-hydroxyapatite toothpastes are becoming increasingly popular. You've likely seen them on store shelves or in ads from companies like Boka and Davids, marketed as fluoride-free alternatives for your toothbrush that claim to whiten teeth, repair enamel and prevent cavities. "As ingredient labels shift toward cleaner, fluoride-free formulas, one compound is taking center stage in modern oral care: nano-hydroxyapatite," Dr. Pia Lieb, DDS, cosmetic dentist and clinical assistant professor emerita at NYU College of Dentistry, explains. According to dentists, if you're considering replacing your fluoride toothpaste with a nano-hydroxyapatite alternative like the now-viral NOBS, you should know the following potential benefits and side effects. What is nano-hydroxyapatite? "Nano-hydroxyapatite is a synthetic calcium phosphate compound that's used in some oral care products, including toothpastes," explains Dr. Ada Cooper, consumer advisor and spokesperson for the American Dental Association, says. "[It] has a structure that is similar to hydroxyapatite found in enamel, and nHAP gets incorporated into the tooth structure preferentially in demineralized areas." Nano-hydroxyapatite is also abbreviated as n-HA and n-HAp. Dr. Royce Lai of King Village Dental adds that this is technically a two-part question, since "hydroxyapatite has been around for decades and has been studied for at least 20 years." Newer and less studied, nano-hydroxyapatite is a version of hydroxyapatite with small, rod-shaped particles. "Hydroxyapatite is natural. It is a type of calcium that makes up bones and teeth," says Lai. "Nano-hydroxyapatite relates to the particle size. These are between 20 and 80 nanometers and are much smaller than the hydroxyapatite tubules that are a part of your teeth." According to Dr. Daniela Eversgerd, a cosmetic dentist and the founder of Allure Dental, nano-hydroxyapatite was developed by NASA in the 1970s for astronauts dealing with bone and enamel loss during long periods of space travel. Since the early 1990s, it has been approved for oral care products in Japan. Nano-hydroxyapatite toothpaste benefits "Nano-hydroxyapatite doesn't just protect your teeth -- it helps rebuild them," says Dr. Catrise Austin, a cosmetic dentist, author of Gum Health Made Simple and host of the Let's Talk Smiles podcast. She lists the following as potential nano-hydroxyapatite benefits: Enamel remineralization Tooth sensitivity relief Reduced bacterial adhesion Whitening and gloss enhancement "n-HA can actually fill microscopic cracks and help reverse or arrest early cavities," adds dentist Dr. Sandip Sachar. Austin cites a 2019 study that found a 10% hydroxyapatite toothpaste is equivalent or non-inferior to fluoride toothpaste for preventing and remineralizing dental cavities (or caries) in children. When it comes to teeth sensitivity, Lai cites a 2014 study concluding that 15% nano-hydroxyapatite helped sensitive teeth. "The particle size could get into space and work better than larger particles in micro-hydroxyapatite or fluoride," he explains. "The conclusion was that nano-hydroxyapatite could significantly reduce tooth sensitivity to hot and cold in two to four weeks of use." Referencing an 18-month 2023 clinical trial finding that a 10% n-HAp toothpaste protected adult teeth from new cavities as well as a standard 1,450-ppm fluoride paste, Dr. Christopher Tolmie, DDS, MBA, of PDS Health, states, "By patching enamel and calming swollen gums, nano-hydroxyapatite may cut off a hidden spark of chronic inflammation linked to heart disease and diabetes." Since nano-hydroxyapatite toothpastes are fluoride free, Dr. Yenile Y. Pinto, DDS, functional and biomimetic dentist and founder of Deering Dental, adds, "It's also been shown to reduce sensitivity and strengthen the enamel surface without the risk of fluorosis." Fluorosis occurs when you get too much fluoride as a child, causing white or brown spots on the teeth. The CDC reports that fluorosis typically doesn't affect tooth function and isn't painful. A 2020 systematic review of 32 studies concluded that "Nano-HA is a relatively novel material with outstanding physical, chemical, mechanical and biological properties that makes it suitable for multiple interventions. It outperformed most of the classic materials used in implantology and surgery, but it should be further investigated for bone engineering and caries prevention therapy." HengleinA 2023 comprehensive review found that, while more long-term studies are needed to establish the safety of regular use, "Nanohydroxyapatite is a promising revolutionary material in the prevention of early carious lesion mainly due to a greater source of free calcium." Ultimately, providing a 2021 review and 2022 scoping review, Cooper concludes, "Although there is some evidence that alternative ingredients, such as [nano] hydroxyapatite, prevent tooth decay by acting as a remineralizing or anti-cavity agent, the studies are preliminary. The only anti-cavity agent recognized by the Food and Drug Administration in its over-the-counter monograph is fluoride, a naturally occurring chemical." Cooper adds that all toothpastes with the ADA Seal of Acceptance contain fluoride. The administration specifically recommends brushing your teeth twice a day with fluoride toothpaste and regularly visiting your dentist. Nano-hydroxyapatite toothpaste side effects "According to a [2021] narrative review from Odontology, the official journal of the Society of the Nippon Dental University, so far, there have been no reports of adverse dental or systemic effects of HAP-containing toothpastes because HAP has an excellent biocompatibility," states Cooper. According to Austin, the concern with nano-hydroxyapatite is that, because it's made of nanoparticles, some worry about how much might get absorbed into the body if regularly swallowed. "The European Commission's Scientific Committee raised concerns due to the lack of long-term safety data on ingestion, particularly in children," she says. This has led to temporary nano-hydroxyapatite restrictions (not a full-on banning) in Europe. The European Scientific Committee deems nHA safe in toothpaste up to 29.5% and up to 10% in mouthwash, per Tolmie. However, he states, "Regulators still bar it from breath-spray products to avoid lung exposure, so stick to pastes and rinses." Key concerns around nano-hydroxyapatite, according to Lieb, are: Potential ingestion and systemic absorption, especially in nano form Lack of long-term studies in humans on the cumulative effects Unknown impact of inhalation from aerosol products (not toothpaste) In terms of systemic absorption, Sachar specifies, "Because nano-hydroxyapatite particles are similar in composition to bone mineral, there has been some theoretical concern that if absorbed systemically, they could potentially contribute to unwanted calcifications in soft tissues (like blood vessels or kidneys)." However, she states that this is speculative and not supported by any current clinical nano-hydroxyapatite toothpaste only effective at 10%? "Most clinical formulations of nHA range from 5%-15%, with 10% emerging as the benchmark concentration in several Japanese and European studies," answers Lieb. "This concentration has demonstrated reliable enamel restoration while maintaining product stability and usability." However, she states that newer formulations are experimenting with lower concentrations and enhanced delivery systems (such as encapsulation or synergistic minerals), which may improve efficacy at reduced levels. "The effectiveness isn't just about percentage, it's also about particle quality and how it's delivered to the tooth surface," she explains. Tolmie adds, "Effective repair starts as low as 5% and plateaus around 10-15%. Several studies show that 5% n-HAp can mend enamel dings, divots and dents in the teeth, with benefits leveling off somewhere between 10% and 15%. One review even noted that 5% sometimes beats 10% because fewer particles clump, making them easier to slip into enamel defects; hence, most US brands sit comfortably in the 5-10% sweet spot." Should people replace fluoride toothpaste with nano-hydroxyapatite? Eversgerd states that it all depends on each person's oral health needs. "Fluoride remains the gold standard for cavity prevention, supported by decades of large-scale, randomized controlled trials," she explains. "However, for patients seeking a fluoride alternative -- whether due to sensitivity, allergies, personal preferences or a desire for a biomimetic approach -- nano-hydroxyapatite provides a scientifically supported option." According to the Academy of Biomimetic Dentistry, a biomimetic approach is one in which damaged teeth are restored using materials mimicking natural teeth in function, strength and appearance. For high-risk patients, Eversgerd recommends fluoride, while she may recommend n-Ha to low-risk or fluoride-averse individuals. Austin seconds this, but adds that she also recommends fluoride toothpaste to children with poor brushing habits or communities with limited dental access. "nHA is a great option, but it's not a one-size-fits-all replacement for fluoride -- yet," Austin says. Lieb explains that nHA may also be a compelling alternative for patients with aesthetic concerns, such as whitening-induced sensitivity, and individuals in preventive care regimens post-restorative treatment. Pinto agrees that it depends on the person, stating, "For most of my patients, especially those with low to moderate cavity risk, nano-hydroxyapatite is an excellent option; gentler on the mouth, less drying and effective at rebuilding early damage. For people with high cavity risk, fluoride might still be the best choice, at least short term. For my high-risk patients, I often recommend a combo toothpaste that includes both ingredients when appropriate." Ultimately, if a patient isn't high risk and has health or safety concerns about fluoride, she thinks hydroxyapatite is a great option. When asked if there's a reason people should choose n-HAp over other anti-cavity toothpastes, Tolmie answers, "No, as long as patients are brushing their teeth with an anti-cavity toothpaste. There are differences in the way an n-HAp toothpaste and a fluoride toothpaste work to prevent decay, and some n-HAp toothpastes may feel smoother on the teeth. But anti-cavity toothpastes as a whole accomplish the same task. Do I wash a car with tap water or bottled water? We know that both of them get the job done." What's most important, according to Tolmie, is that patients ensure they're not swallowing toothpaste. What does the American Dental Association think? Cooper states that the ADA recommends brushing teeth twice daily for two minutes with fluoride toothpaste, as the naturally occurring mineral has been proven to remineralize weakened enamel and reverse early signs of tooth decay. "Additionally, the fluoride you take in from drinking water and other beverages continues to provide a topical benefit because it becomes part of your saliva, constantly bathing the teeth and helping to rebuild weakened tooth enamel," Cooper further explains. "The best scientific evidence has shown that adding fluoride to community water supplies is safe and effective. This is backed by decades of research and recognized by more than 100 health organizations." GoodboyDoes nano-hydroxyapatite toothpaste work? All of the dentists we consulted agree that nano-hydroxyapatite toothpaste works, but in the right context and with the right product. It's also not a miracle cure and should not replace your entire oral care routine, dentist's recommendations or regular appointments. Plus, Eversgerd adds that more long-term, large-scale trials are needed to fully validate whether it's equal to fluoride in preventing cavities. When asked if it's effective, Austin says, "Yes -- particularly for enamel remineralization and sensitivity. In my practice, I've seen patients who switched to nHA toothpaste experience noticeable improvements in comfort, plaque control and surface smoothness. But like any product, it works best when paired with consistent brushing, flossing and professional cleanings." Pinto agrees and has also seen the results firsthand. "It helps remineralize enamel, soothe sensitivity and support a healthier oral microbiome, especially when paired with a good routine (good home hygiene, healthy diet, hydration and nasal breathing)," she explains, noting that it's not a miracle cure, but does offer many benefits. On behalf of the ADA, Cooper echoes Eversgerd's earlier statement: "The use of nano-hydroxyapatite (nHAP) in over-the-counter products is growing and some evidence shows that nHAP may contribute to remineralization, but the evidence is fairly new and often ambiguous, especially regarding clinical indications. " Do experts recommend nano-hydroxyapatite toothpaste? All of the experts we consulted do recommend nano-hydroxyapatite toothpaste, but only for certain patients. After all, according to Austin, "Nearly half of US adults over 30 have some form of gum disease, and you can't out-toothpaste a bad hygiene routine." Brushing your teeth regularly, flossing and regularly visiting your dentist are still essential, no matter what toothpaste you use. Though Lieb recommends nHA toothpaste for adult patients experiencing post-whitening sensitivity or early enamel erosion, low-caries risk individuals seeking natural alternatives and adults undergoing cosmetic dental work who want to protect their investment with gentle, remineralizing care, she doesn't recommend nano-hydroxyapatite for children with deciduous dentition. "In my professional opinion, fluoride remains the safest and most effective option for all patients under 14," says Lieb. "Its protective effect during the development of permanent dentition is unmatched, and its caries-prevention record is well established." Sachar states that she often recommends it for "patients seeking fluoride-free options, those with mild tooth sensitivity and for children at risk of swallowing fluoride toothpaste." However, she advises that patients with moderate to high cavity risk not fully abandon fluoride. Again, it's important to note that the "ADA recommends that adults brush their teeth twice daily with fluoride toothpaste for at least two minutes each time, or as directed by a licensed dentist," according to Cooper. This is because the proposed benefits of nHAP are fairly new and ambiguous. Getty Images The bottom line Though more research is needed, the dentists we consulted explained that nano-hydroxyapatite toothpaste can be an effective alternative to fluoride -- but only in the right context. The ADA doesn't recommend it. It's also not a miracle cure or a replacement for brushing regularly, flossing and professional dental appointments. If you're considering nano-hydroxyapatite toothpaste, consult your dentist first before making the switch. They know your teeth best and will be able to help you find the best toothpaste for your smile.
CNN
7 days ago
- Health
- CNN
I'm bad at flossing. This electric flosser helped me build a daily habit I hope my dentist will approve of
I'm ashamed to admit it, but I don't floss my teeth as much as I should. I've written several oral care stories for CNN Underscored and talked to enough dentists to know that flossing should be a daily part of my oral health routine. Still, for some reason, it's the last thing I want to do at the end of a long day — and I know I'm not the only one who feels that way. Several of my coworkers have raved — and even written reviews — about how electric flossers have helped them maintain a better daily flossing habit. So, when I came across the Slate Rechargeable Electric Flosser, I figured it was time to get in on the action myself. Even though there is still room for improvement, after almost two months of use, the Slate Rechargeable Electric Flosser has become a key part of my oral care routine that helps my mouth feel cleaner in mere seconds. A post shared by CNN Underscored (@cnnunderscored) Slate Rechargeable Electric Flosser The Slate Rechargeable Electric Flosser turns the daily chore of flossing into a quick and easy task that anyone can do. The ergonomic design is lightweight, easy to store and lets me clean all my teeth in just about a minute. It's not a total replacement for traditional floss, but I reach for it much more often to help keep my smile bright and clear of debris. It's simple to use Straight out of the box, I found the Slate Flosser to be an intuitive device to use. Similar to an electric toothbrush, both in size and shape, the Slate Flosser has one button on the base that powers the device on and off. Pressing and holding the button will cause the flosser to alternate between its three sonic vibration settings: gentle, standard and deep clean. I mostly used the standard setting to clean my teeth. If you've flossed on one setting for longer than 10 seconds, the Slate Flosser will automatically start on that setting the next time you turn it on. The only other feature on the handle is a battery light, which will change from blue to red to indicate the flosser needs to be charged. Aside from the base handle, the only other component on the flosser is the floss head. Each Slate device comes with five reusable floss heads, which — like standard floss — fit between the teeth to help remove debris. There's only a small amount of floss on each head, but I found it was enough to clean all my teeth. Just keep in mind you'll have to rinse some gunk from the head as you move from tooth to tooth. The overall sleek design is comfortable to hold at any angle and the simple layout makes the flosser accessible for all ages to use. It's easier and faster than standard flossing I'm fully capable of flossing with traditional thread, I just find it more difficult than it needs to be. While some of my teeth are easy to clean, years of braces and dental work have left my teeth tight and hard to floss between. I can never get my hands to fit comfortably enough in my mouth to get the correct flossing angles (especially if I happen to be rocking some press-on nails) and find it hard to reach my upper and lower molars where food tends to settle the most. I've tried in the past to pursue a daily flossing habit but would normally get fed up with the process after a day or two. The Slate Flosser melted much of that frustration away. The Slate's long handle and small head made it easy to reach between every single tooth, no matter how far back, and saved me from unhygienically shoving my fingers into my mouth. In order to prevent putting excess force on the gums, Slate recommends using its rolling and sliding technique to guide the floss head between the teeth. It took me a few tries to find the perfect angle, and I still have to be mindful of the technique each time I floss, but it's easy enough for anyone to pick up. My gums did bleed a little during the first week of use, but this was more the fault of my previous flossing negligence than the Slate device. After a few days, I was able to expertly floss all my teeth in just about a minute with no bleeding, strange face contortions or discomfort. Above all, I actually enjoyed flossing my teeth with the Slate Flosser; my mouth felt cleaner and it took minimal effort to do each night. I even had to part with my flosser for a few days so our photo editor could take pictures of it for this story and I found myself genuinely missing it while it was gone. Though there are other similarly priced electric flossers on the market, like the Flaus, Slate claims to be the only 3-in-1 model. In addition to flossing between your teeth, each floss head is also designed with patent-pending gum sweeps for a deeper clean and a tongue scraper for freshening breath. While nice to have, I didn't find these to be revolutionary features. The tongue scraper itself is pretty small and I had to rinse it off after every one or two swipes. It took longer to clean my tongue using Slate's scraper than it typically does with my standalone tongue cleaner. While you're using the tongue scraper, the floss head is also turned upright, and if you, like me, have a small mouth, the floss head will feel close to scraping the roof of your mouth and teeth. The tongue scraper still gets the job done effectively, but it's less efficient than other options. It doesn't need to be charged often Slate says its flosser can hold a charge for a month, and during my testing, I was impressed with its long battery life. I've been using the flosser for over two months and haven't had to charge it since I initially set it up — granted, I haven't always used the flosser every single day. The Slate flosser comes with its own special charging cable. One end is compatible with any USB-C port, while the other is a unique magnetic attachment designed specifically for the flosser. This means that if you lose or misplace the included charger from your kit, you'll have to grab a replacement cord from Slate. In a world where seemingly everything needs to be charged now — from phones, headphones and e-readers to oral care devices — it's nice to be able to use something daily but only worry about charging it every few weeks. The long battery life also means that I can store the flosser in my bathroom cabinet and don't have to find a spot on my small counter to place a permanent charging dock. It has a compact design On top of the Slate Flosser being sleek and simple to navigate, the low-profile design also fits easily into my bathroom cabinet. For me, one of the main deterrents of gadgets like water flossers and high-end electric toothbrushes is that some require dedicated counter space, either to support their charging docks and water tanks or because they're too bulky to fit in a bathroom cabinet. In my small New York City apartment bathroom, counter space is prized real estate and only the most essential items are worthy of winning a spot. Because the Slate Flosser has a long battery life, it doesn't need a dock and can be safely stored in my cabinet when not in use. Slate's flosser is also lightweight at just 66 grams, which allows me to clean every nook comfortably with one hand. It's about the same size as my electric toothbrush, and though it doesn't fold down, it can still fit in a cosmetics case if you want to take it on the go for travel. It's pricey The major pain point of the Slate flosser and other electric flossers is that they're not cheap. The device alone costs around $120, plus an extra $60 each year for replacement floss heads. When a standard two-pack of regular floss costs less than $6, it's hard to justify spending so much more to complete the same job. Since the floss heads are plastic, you're also generating more waste than you would be with a biodegradable floss, though it's still less trash than if you were using plastic floss picks daily and Slate does offer a recycling program for its floss heads. It's hard to argue the case for getting an electric flosser from a pure numbers standpoint. Still, if I walked into my bathroom right now, I could pull out the exact two-pack of manual floss I just mentioned, which has been sitting in my bathroom cabinet, virtually unused, for the past several months. The truth is, even though manual floss is cheap and effective, it's not quick and easy to use. When I'm doing my oral hygiene routine late at night and feeling tired, I'm much more likely to pick up the Slate flosser for a speedy cleaning than to make a half-hearted attempt at manually flossing. Maybe I'm just lazy, but the Slate flosser has helped bolster a flossing habit in my routine more effectively than years of using manual floss ever did. It will cost you a chunk of change, but if you're looking to invest in your oral health and finally honestly tell your dentist that you do some sort of flossing daily, the Slate flosser might be a worthwhile tool to consider adding to your lineup. Related article Proclaim Custom-Jet Oral Health System review: A high-tech alternative to flossing It's not a complete flossing fix Even though the Slate flosser was designed by a dentist, I still wanted to consult an independent source for insight. I was curious if an electric flosser, like Slate's, could totally replace the need for any kind of manual flossing. It turns out, they can't. Though electric flossers combine vibration and flossing to help clear debris, orthodontist and founder of Boca Orthodontic and Whitening Studio Dr. Erin Fraundorf said they're not as effective at cleaning the teeth and gums as traditional manual floss or water flossers. 'Similar to floss picks, they are convenient and better than doing nothing but do not replace the benefits of string floss,' Fraundorf said. She added that there is currently very limited independent research on the effectiveness of electric flossers at removing plaque. According to Fraundorf, traditional string floss is still the best method for removing debris between teeth and below the gumline since it can scrape along the natural contours of the tooth surface to effectively disrupt plaque. Water flossers are also popular among those looking for easier and quicker ways to clean, but they still are not a replacement for regular floss. 'Water flossers are excellent options, especially for individuals with braces, implants, crowns or periodontal concerns,' Fraundorf said. 'They flush out food particles and reduce gingival inflammation with a stream of water; however, they do not physically scrape the tooth surface and do not remove sticky plaque as well as manual string floss [does].' Fraundorf added that water and electric flossers can be great, optional add-ons to your regular oral care ritual, but they are not altogether replacements for manual flossing. But if you have trouble holding regular floss with both hands due to mobility issues, the Slate flosser can be a good alternative since you only need one hand to effectively maneuver it. I won't lie to you: I'm still not an everyday flosser. But I'm significantly more consistent now that I have the Slate Rechargeable Electric Flosser in my oral care arsenal. This device makes flossing fast and easy, leaving my mouth feeling cleaner and free from deeply lodged debris. Between the initial purchase and the cost of replacement heads, the Slate flosser isn't cheap. The dentist I spoke to also recommends that in addition to using the Slate flosser, you should use manual floss for the most optimal clean, which is why I still keep a few packs of manual floss on hand. If you're skilled at flossing regularly or already own a flossing aid like a water flosser, you don't need to run to grab Slate's device. I'd recommend the Slate flosser to those who want a debris-free smile and better oral health but who struggle to keep up with daily flossing. It's not a necessity by any means, but I've found the Slate flosser to be an excellent tool for encouraging more consistent oral habits in my routine. The following FAQs have been answered by orthodontist Dr. Erin Fraundorf and include reporting by associate editor Jillian Tracy. Are electric flossers safe to use? Are electric flossers safe to use? Fraundorf said electric flossers, like Slate's device, are safe to use as long as you use them as directed. Like manual floss, there is a proper technique to use when cleaning with an electric flosser. 'Simply vibrating the floss between teeth won't achieve optimal results,' Fraundorf said. 'Contouring to the tooth surface and gently moving under the gumline is still crucial.' Instead of forcing the floss head straight down into your teeth, Slate recommends using its 'rolling' method for cleaning. Insert the floss head at an angle between your teeth and roll it into the gap, moving toward the inside of your mouth. Then, once fully in, slide the head back toward your lips and roll it outward from your teeth to release. You'll repeat this process to floss each tooth. Are there any potential risks in using the Slate Rechargeable Electric Flosser? Are there any potential risks in using the Slate Rechargeable Electric Flosser? Using any kind of flosser — whether electric or manual — with excessive pressure, incorrect angles or poor technique can irritate or traumatize the gums, which Fraundorf said can lead to gum recession and in some cases even enamel abrasion over time. 'While these kinds of tools are safe overall, it's important to understand their limitations and receive proper instruction to avoid injury and ensure effectiveness,' she said. Fraundorf added that the soft, flexible materials and gentle vibration settings on the Slate flosser help to clean between teeth and along the gumline without damaging tissue. She also noted that the woven flossing heads also help to decrease the risk of cutting the gum or harming enamel. How long is the battery life for the Slate Rechargeable Electric Flosser? How long is the battery life for the Slate Rechargeable Electric Flosser? Slate says its flosser can hold a charge for a month. I've been testing the Slate Flosser for about two months and haven't had to recharge since I initially set up the device. Granted, I haven't been using the flosser every single day. How many heads does the Slate Rechargeable Electric Flosser come with? How many heads does the Slate Rechargeable Electric Flosser come with? The Slate flosser comes with five reusable floss heads, one of which is preinstalled on the device. Each floss head is made of woven floss for extra durability, and Slate recommends replacing the head weekly for best results. To remove the head, hold the flosser handle and press the floss head down onto a hard surface until the head pops free. You can add a new head by simply popping one into the back slot of the flosser, making sure that the triangle-shaped logos on the inside of the head and on the body of the flosser are both facing up. In addition to standard thickness floss, the brand also carries thin floss heads for those with tighter teeth and orthodontic floss heads that are designed to floss between braces. You can buy separate packs of replacement floss heads for $20, which come with a four- to five-month supply of 20 floss heads. Does the Slate Rechargeable Electric Flosser include a tongue scraper? Does the Slate Rechargeable Electric Flosser include a tongue scraper? Yes, each reusable head for the Slate Flosser has a built-in tongue scraper on the back. For this article, we consulted the following expert for their professional insight. Dr. Erin Fraundorf, orthodontist and founder of Boca Orthodontic and Whitening Studio in St. Louis, Missouri CNN Underscored has a team of writers and editors who have many years of experience testing, researching and recommending products, and they ensure each article is carefully edited and products are properly vetted. We talk to top experts when relevant to make certain we are testing each product accurately, recommending only the best products and considering the pros and cons of each item. For this story, associate editor Jillian Tracy tested the Slate Rechargeable Electric Flosser in her at-home oral care routine.
