Price Specification Kit Snow Teeth Whitening

Price Specification Kit Snow Teeth Whitening

Snow is actually a forerunner on the property teeth whitening market. The proprietary whitening formula is actually complimented for being actually able to eliminate also the most difficult blemishes without resulting in sensitivity. SHORTCUTSProfessional-quality teeth whitening at homeOver 500,000 satisfied customersSuperior results without causing sensitivityHelps take out difficult coffee and red wine stains30-days cash back guaranteeSnow makes teeth bleaching hassle-free without office brows through, awkward strips, or even untidy treatment.

The Snowfall procedure is an LED-activated teeth whitening unit that targets all sort of blemishes. This includes those created by a glass of wine, herbal tea, coffee, as well as tobacco. The patent-pending light-accelerated innovation induces no negative effects, as the insights are certainly not hazardous. It is FDA-approved, enamel-safe, as well as does not generate sensitiveness. You do not require any sort of dental expert sees or even prescriptions to perform the therapy coming from the comfort of your personal residence.

Price Specification Kit Snow Teeth WhiteningPrice Specification Kit Snow Teeth Whitening

Snow additionally rejects to examine on creatures. There are pair of packages to pick from. The materials of each need to last for over 90 treatments. Permit’s break what they contain and also how to select the greatest one for you. This kit is actually Snowfall’s best-known product, because of which they gained their level of popularity.

The All-in-One kKt from Snow consists of: a wired LED mouthpiece,3 whitening wands,1 extra-strength whitening wand, anda cover overview. The mouthpiece works along with the Snow app, so you can regulate just how strongly you would like to whiten your teeth. Price Specification Kit Snow Teeth Whitening. It includes a cord that permits you hook up to USB, iPhones, and other cell phones.

Price Specification Kit Snow Teeth Whitening

It might be noticeable, yet the greatest distinction between the two packages is the cordless functionality. Over three million were actually invested on research study and development, creating brand new capabilities achievable. The contents of The Wireless Charging Home Teeth Whitening Set feature: a cordless LED mouth piece, a docking terminal,3 whitening wands,1 the greatest durability whitening wand,1 numbing product, lip procedure, USB wire, andan user’s manual.

The final function makes it possible for the therapy to be adjusted to your needs. It programs instantly, so all of you have to carry out is trigger it on the app. The mouth piece is actually water resistant. This indicates you can properly use it in the shower. What’s even more, it cleans on its own while charging. There is actually additionally a red-light procedure alternative for your periodontals.

According to investigation, it aids: do away with bacteria, decrease pearly white sensitiveness, enhance blood circulation in the periodontals, prevent receding periodontal lines, rise bone density, andminimize post-whitening inflammation. The docking terminal features a hidden design, patients commonly match up the technique it appears to a bluetooth sound speaker. Besides cleaning as well as demanding the mouth piece, it likewise functions as a penholder as well as trip instance for your product wands.

Impacts are actually promised to be actually apparent after 7 times of making use of. The packages are actually easy to use appropriate away from the container, so practically any individual may bleach their teeth with Snow items. Listed here is a basic guide: Safe forThose along with crowns, links, and also veneersTeeth with fillingsPregnant womenBreastfeeding momsSensitive dentitionAdditionally, they transport their items worldwide, thus your area will not restrict you.

Price Specification Kit Snow Teeth Whitening

It is actually highly recommended that you brush as well as floss your pearly whites before carrying out the treatment. Oral care assists eliminate any type of meals clutter as well as impurities (Price Specification Kit Snow Teeth Whitening). This allows also insurance coverage of the product. You really want all surfaces of your pearly whites to become brightened!Moreover, plaque and also germs, which often acquire trapped between the product as well as the pearly whites, create it more probable for you to experience dental cavity or even various other oral problems.

This measure is certainly not needed to have if your teeth does not usually react to temperature level or even pleasant or even tough meals. It not only reduces level of sensitivity but additionally enhances the tooth polish. The formula is also loaded with minerals and also vitamins. If you choose to make use of the making less sensitive lotion, do this 15 minutes before the whitening treatment and afterwards wash.

Usage either the normal or even extra-strength whitening serum, depending upon the results you yearn for. Spin the wand to obtain the product out. You could need to perform this approximately 30 opportunities when you initially use it. The brush pointer will certainly aid you apply the product. Picture you are actually painting a white colored picket fence (Price Specification Kit Snow Teeth Whitening).

If you love your gums clean it off the very best you can. A percentage will not harm, however the product was actually designed for teeth merely. The wireless LED unit possesses a “shake to wake” functionality. Listed below are the basic guidelines for this attribute: Shake as soon as to switch it on.

Price Specification Kit Snow Teeth Whitening

A 3rd opportunity for the gum tissue treatment. Drinking it four times will definitely put it to rest. You may additionally install the application to tailor your treatment. As soon as you are carried out, put the light back right into the owner. If you have the wired mouthpiece instead, simply attach it as much as your phone to activate it.

Keep it in for 9 to half an hour per day, 21-30 times straight. If you occur to experience some sensitivity, take a 1 to 3-day break as well as continue the therapy later. It is actually finest to administer your treatments before going to mattress. By doing this they don’t disrupt consuming or even consuming.

The cordless kind will definitely self-sanitize while demanding. Shop your whitening wands in the fridge after using them. This can easily assist all of them keep their toughness over a longer period. The kits include a source for months of treatments, so it is actually an excellent idea to take the greatest achievable care of your products.

The unit may be reviewed to a specialist procedure costing $five hundred-$ 1,000. For a considerably reduced price you may do this from the comfort of your personal home. You may purchase your Snow whitening package directly on their web site, however it is actually additionally available on Amazon. Below is actually an outline of the amount of Snowfall whitening items currently price: ProductPriceAll-in-one package$ 199Wireless demanding kit$ 299Extra toughness refills$ 49Add-on for vulnerable teeth$ 25Serum refill sticks$ 25There are also settlement choices for those that don’t intend to be actually out the cash all at as soon as – Price Specification Kit Snow Teeth Whitening.

Price Specification Kit Snow Teeth Whitening

Price Specification Kit Snow Teeth WhiteningPrice Specification Kit Snow Teeth Whitening

This are going to happen automatically as well as no expenses will definitely be sent out, so you can easily just enjoy your products. There is also a 30-day money-back assurance as well as a 5-year manufacturer’s warranty on electronic devices. It is actually legitimate after you activate it on the Snowfall site. SHORTCUTSProfessional-quality teeth whitening at homeOver 500,000 pleased customersSuperior results without inducing sensitivityHelps get rid of challenging coffee and a glass of wine stains30-days amount of money back assure Authority Dental accepts payment coming from third-party providers.

After seeing social media flooded along with folks going crazy regarding how excellent the Snow Teeth Whitening system is, I needed to learn. One that combines all the very best pieces of pearly whites whitening as well as overlooks all the poor ones? Yeah, certain (Price Specification Kit Snow Teeth Whitening). If you are actually a sturdy believer that everything too really good to be correct is precisely that, right here’s a pearly whites whitening body to verify you wrong.

Snow is likewise extremely affordable, at lower than 1/10th the price of specialist whitening at the dental expert. Likewise, Snow Teeth Whitening does certainly not result in level of sensitivity. You can easily possess your frozen yogurt and also consume it too! Or is actually that covered? Either way, you can have both when your teeth aren’t dropping out from bangs of chemical procedures that white colored strips usually include.

Truthfully,. The LED lighted mouthpiece speeds up the whitening coming from the gel on your pearly whites leading to quicker, much longer long-term as well as more effective whitening without resulting in sensitivity. The LED lighting enables you to utilize Snowfall for a shorter time period along with the exact same whitening has an effect on contrasted to other units.

Price Specification Kit Snow Teeth Whitening

These are actually actual, unsettled Snowfall customers’ reviews/before and also after teeth whitening pictures accepted our team within the last 30 times. These are actual, overdue Snow consumers’ reviews/before as well as after pearly whites whitening pictures undergone our team within the final thirty days. Awesome product !! A single that has actually helped me! As well as no sensitivity!! AMAZING!! Procured this feeling extremely skepitcal (Price Specification Kit Snow Teeth Whitening).

Price Specification Kit Snow Teeth WhiteningPrice Specification Kit Snow Teeth Whitening

Passion it !!! Ideal cash I have actually invested in an undecided item. Eventually one thing that really measures up to its cases! I have actually been actually using this and will highly recommend, I’ve seen a distinction after 4 days I like this item! I have actually only used it 3 opportunities effortless to utilize as well as no sensitivity…, I also failed to remember to make use of the after item for the periodontals the first 2 times! …

It does specifically what they stated it would certainly do, yes to whatever!!!! I was fairly hesitant but I’m really impressed after 2 usages today. “The most ideal pearly whites whitening system for delicate pearly whites” “Take teeth whitening to the following degree along with an at-home kit that equals a visit to your neighborhood helpful dental professional.” “2 friends commented on just how white my pearly whites cared for using this package merely pair of times!”.

When you order the Snow whitening unit, you obtain the complying with in every set: Product wands LED holder Umbra quick guide that aids you track your progression Directions on exactly how to utilize the systemGetting began with Snow is actually easy, as well as the guide will definitely walk you through every little thing you require to know on exactly how to utilize the whitening unit.

Price Specification Kit Snow Teeth Whitening

Price Specification Kit Snow Teeth WhiteningPrice Specification Kit Snow Teeth Whitening

It doesn’t meet a number of its commitments, but it’s still a practical expenditure if you are actually looking for whiter teeth, as well as is actually much better than the majority of other whitening products on the market. The Powder snow is actually fairly uncomplicated to use. Comb your pearly whites just before you start. Administer the lotion to your pearly whites thoroughly, being sure you acquire also insurance coverage.

After 10-30 minutes, get rid of the rack and also rinse your pearly whites. Loyal this procedure over the next times as well as weeks. This procedure corresponds to some other whitening products. But the product and also LED lightweight visibility make it different than many various other strips and also holders. Yet different does not consistently suggest far better.

Teeth were actually clearly whiter after just a couple of days of utilization. As well as with extended use, there was remarkable development. Yellow teeth, although certainly not powder snow white colored, were actually noticeably whiter. It took a bit longer than Snow vows, yet the unit performs offer end results relatively promptly.

Allow’s encounter it. Some of one of the most habit forming drinks as well as behaviors are not the very best for our brilliantly whites. Luckily, if you want white colored teeth, you don’t possess to leave to coffee, soft drink, sweets, herbal tea, a glass of wine, as well as smoking since there are many pearly whites whitening kits to pick from (our team still advise that you kick the smoking cigarettes habit for obvious reasons). Pearly white whitening is a $ 3.2 billion around the world business.

Price Specification Kit Snow Teeth Whitening

Fortunately, if you intend to spare cash, there are a number of effective kits that you can easily make use of in your home. There are actually essentially pair of forms of kits: ones that bleach your pearly whites to take blemishes off as well as ones that literally scuff off the spots. Switched on charcoal powders have actually ended up being very well-known in recent years.

Whitening holders as well as strips have actually been actually the requirement for years and usually rely upon carbamide or even hydrogen peroxide. There is a 3rd form of teeth whitening item that just blasts your teeth with LED lighting. However, professionals spoken with by the Wirecutter mention any increases coming from this treatment are short-term. Simply the SmileDirectClub system in our resource utilizes this modern technology, but it is actually utilized together with a whitening gel.

Expecting or nursing ladies must not utilize peroxide-based whitening products. It additionally isn’t ideal for kids under 14 years of ages. Price Specification Kit Snow Teeth Whitening. And, you ought to certainly not utilize peroxide for longer than two full weeks of regular usage without the guidance of a dental practitioner. The FDA does not highly recommend utilizing any kind of whitening gels along with a peroxide attention of greater than 18%.

You need to be actually mindful making use of whitening items, as Individual Information discusses. As an example, if your dim teeth are because of the organic decreasing of tooth enamel that possesses getting older, whitening packages will definitely not assist you. Likewise, they may not bleach fillings, dentures, laminates, dental crowns, or limits. Pros mention that whitening kits are risk-free when used as guided – Price Specification Kit Snow Teeth Whitening.

Price Specification Kit Snow Teeth Whitening

Therefore, concerning a week before you begin your whitening routine, make use of a toothpaste exclusively developed for folks along with sensitive pearly whites or one that accumulates polish. And also, avoid a time or even 2 of making use of if you carry out experience level of sensitivity. The English Dental Diary has launched new study that points out there wants medical documentation to show the cosmetic and health and wellness perks of switched on charcoal tooth pastes as well as particles, and also they may create decay.

Price Specification Kit Snow Teeth Whitening

Price Specification Kit Snow Teeth Whitening

Snow is a forerunner on the residence pearly whites whitening market. The exclusive whitening formula is applauded for managing to get rid of even the toughest blemishes without resulting in sensitivity. SHORTCUTSProfessional-quality pearly whites whitening at homeOver 500,000 pleased customersSuperior results without triggering sensitivityHelps remove challenging coffee and red wine stains30-days refund guaranteeSnow makes pearly whites bleaching convenient with no office gos to, unpleasant bits, or unpleasant treatment.

The Snow treatment is an LED-activated pearly whites whitening body that targets all sort of spots. This consists of those triggered by a glass of wine, tea, coffee, and also cigarette. The patent-pending light-accelerated modern technology results in no adverse effects, as the insights are certainly not hazardous. It is actually FDA-approved, enamel-safe, and also doesn’t cause sensitivity. You do not need any dental expert sees or prescribeds to perform the procedure from the convenience of your very own home.

Price Specification Kit Snow Teeth WhiteningPrice Specification Kit Snow Teeth Whitening

Snowfall also declines to examine on pets. There are actually pair of kits to decide on coming from. The components of each must last for over 90 applications. Allow’s break down what they consist of and how to pick the most ideal one for you. This set is Snowfall’s best-known item, with the help of which they acquired their appeal.

The All-in-One kKt from Snow consists of: a wired LED mouthpiece,3 whitening sticks,1 extra-strength whitening wand, anda cover manual. The mouthpiece is appropriate with the Snow app, so you can regulate just how deeply you wish to whiten your teeth. Price Specification Kit Snow Teeth Whitening. It comes along with a cord that lets you connect to USB, iPhones, and various other smartphones.

Price Specification Kit Snow Teeth Whitening

It may be actually obvious, yet the biggest variation in between the two sets is actually the wireless functionality. Over three million were actually invested on investigation and also growth, bring in brand-new performances achievable. The materials of The Wireless Charging Home Pearly Whites Whitening Set include: a wireless LED mouthpiece, a docking station,3 whitening wands,1 maximum stamina whitening wand,1 making less sensitive cream, lip treatment, USB cord, andan instructions.

The final component enables the treatment to be actually changed to your needs. It courses automatically, so all you possess to carry out is actually activate it on the app. The mouthpiece is actually water resistant. This means you can securely use it in the downpour. What is actually more, it disinfects on its own while demanding. There is also a red-light therapy possibility for your gum tissues.

According to study, it assists: remove germs, reduce pearly white level of sensitivity, enhance blood circulation in the periodontals, prevent declining periodontal lines, boost bone tissue quality, andminimize post-whitening inflammation. The docking terminal includes an inconspicuous concept, individuals typically contrast the means it tries to a bluetooth sound speaker. Besides disinfecting and charging the mouthpiece, it likewise functions as a penholder as well as traveling case for your serum sticks.

Results are actually ensured to become apparent after 7 days of usage. The packages are actually quick and easy to make use of correct away from the container, thus practically any individual can easily lighten their pearly whites along with Snowfall products. Listed here is actually an overall review: Safe forThose along with crowns, bridges, and also veneersTeeth along with fillingsPregnant womenBreastfeeding momsSensitive dentitionAdditionally, they deliver their products worldwide, so your place won’t restrict you.

Price Specification Kit Snow Teeth Whitening

It is actually highly recommended that you comb and also dental floss your pearly whites just before doing the treatment. Oral cleanliness assists remove any kind of meals particles and also contaminations (Price Specification Kit Snow Teeth Whitening). This allows for also coverage of the product. You want all surface areas of your teeth to become brightened!Moreover, cavity enducing plaque and microorganisms, which at times receive caught in between the lotion as well as the teeth, create it most likely for you to experience dental caries or other oral problems.

This step is actually certainly not needed to have if your dentition doesn’t normally react to temp or even sweet or tough foods items. It not just decreases sensitivity but likewise enhances the tooth polish. The formula is in addition loaded with minerals and vitamins. If you determine to make use of the numbing product, perform this 15 minutes prior to the whitening treatment and afterwards rinse out.

Make use of either the normal or extra-strength whitening product, relying on the end results you wish. Spin the wand to obtain the item out. You may need to perform this approximately 30 opportunities when you initially utilize it. The comb tip are going to assist you use the product. Visualize you are repainting a white colored picket fence (Price Specification Kit Snow Teeth Whitening).

If you love your gums wipe it off the very best you can. A percentage won’t hurt, but the item was actually developed for pearly whites simply. The wireless LED tool possesses a “shake to wake” functionality. Listed below are actually the overall directions for this function: Shake as soon as to switch it on.

Price Specification Kit Snow Teeth Whitening

A third opportunity for the gum tissue treatment. Shaking it four times will certainly put it to rest. You can easily likewise download and install the app to tailor your procedure. When you are carried out, position the illumination back right into the owner. If you have the wired mouth piece as an alternative, simply link it as much as your phone to activate it.

Maintain it in for 9 to 30 minutes on a daily basis, 21-30 times in a row. If you happen to experience some sensitiveness, take a 1 to 3-day rest as well as carry on the treatment later. It is actually finest to conduct your sessions just before going to sleep. Through this they don’t obstruct consuming or alcohol consumption.

The cordless kind is going to self-sanitize while demanding. Establishment your whitening wands in the fridge after utilizing all of them. This can easily help them maintain their strength over a longer time period. The sets feature a supply for months of treatments, so it’s a really good tip to take the finest possible treatment of your items.

The system may be matched up to a professional therapy setting you back $five hundred-$ 1,000. For a much reduced rate you can perform this coming from the convenience of your own residence. You may order your Snow whitening set precisely their site, however it is actually also available on Amazon. Listed here is a summary of exactly how much Snow whitening products currently price: ProductPriceAll-in-one set$ 199Wireless asking for set$ 299Extra strength refills$ 49Add-on for vulnerable pearly whites$ 25Serum refill sticks$ 25There are even repayment options for those that don’t would like to be actually out the loan simultaneously – Price Specification Kit Snow Teeth Whitening.

Price Specification Kit Snow Teeth Whitening

Price Specification Kit Snow Teeth WhiteningPrice Specification Kit Snow Teeth Whitening

This will take place instantly and also no bills are going to be sent, so you can simply enjoy your items. There is actually also a 30-day money-back assurance and a 5-year warranty on electronics. It stands after you activate it on the Snow website. SHORTCUTSProfessional-quality teeth whitening at homeOver 500,000 pleased customersSuperior results without creating sensitivityHelps get rid of challenging coffee and also a glass of wine stains30-days cash back assure Authorization Dental accepts commission from 3rd party providers.

After observing social networks swamped along with individuals going crazy concerning how fantastic the Snow Teeth Whitening system is, I must determine. One that blends all the greatest pieces of pearly whites whitening and omits all the bad ones? Yeah, sure (Price Specification Kit Snow Teeth Whitening). If you are a strong enthusiast that anything as well excellent to become accurate is actually precisely that, listed below’s a pearly whites whitening system to confirm you inappropriate.

Snowfall is actually additionally extremely inexpensive, at much less than 1/10th the cost of expert whitening at the dental practitioner. Additionally, Snow Pearly Whites Whitening performs certainly not trigger level of sensitivity. You can have your frozen yogurt and also eat it too! Or even is that pie? In any case, you can possess each when your teeth aren’t falling out from blasts of chemical procedures that white colored bits commonly contain.

Frankly,. The LED ignited mouthpiece increases the whitening coming from the gel on your pearly whites leading in quicker, longer long lasting and also more efficient whitening without inducing sensitivity. The LED illumination enables you to make use of Snowfall for a briefer time period along with the same whitening impacts compared to various other systems.

Price Specification Kit Snow Teeth Whitening

These are actually genuine, unsettled Snowfall consumers’ reviews/before and after pearly whites whitening pictures undergone our team within the last thirty day. These are actual, overdue Snowfall customers’ reviews/before as well as after teeth whitening photos accepted our team within the final thirty days. Fantastic item !! A single that has actually helped me! And also no level of sensitivity!! AMAZING!! Acquired this emotion really skepitcal (Price Specification Kit Snow Teeth Whitening).

Price Specification Kit Snow Teeth WhiteningPrice Specification Kit Snow Teeth Whitening

Passion it !!! Greatest funds I have invested in a doubtful product. Finally one thing that really measures up to its claims! I have actually been actually using this and also would certainly advise, I have actually found a distinction after 4 days I enjoy this product! I have actually only utilized it 3 opportunities easy to utilize and also no level of sensitivity…, I even failed to remember to utilize the after product for the gum tissues the first 2 times! …

It performs specifically what they stated it would certainly do, yes to every little thing!!!! I was rather hesitant yet I am actually very amazed after 2 make uses of today. “The very best teeth whitening device for sensitive teeth” “Take teeth whitening to the following confess an at-home kit that equals a browse through to your neighborhood welcoming dentist.” “Pair of buddies discussed exactly how white my pearly whites looked after using this package simply 2 opportunities!”.

When you order the Snowfall whitening system, you acquire the observing in every package: Product wands LED holder Umbra overview that aids you track your development Instructions on just how to utilize the systemGetting started with Snowfall is actually easy, as well as the guide will definitely walk you with everything you need to have to know on exactly how to use the whitening device.

Price Specification Kit Snow Teeth Whitening

Price Specification Kit Snow Teeth WhiteningPrice Specification Kit Snow Teeth Whitening

It does not reside up to a number of its promises, yet it’s still a worthwhile financial investment if you are actually searching for whiter pearly whites, and also is actually far better than a lot of other whitening products available. The Snowfall is fairly straightforward to use. Comb your pearly whites before you begin. Use the serum to your pearly whites carefully, being sure you get back at coverage.

After 10-30 moments, get rid of the tray and also rinse your teeth. Repeat this process over the next days and weeks. This process corresponds to a few other whitening products. But the lotion and also LED lightweight visibility make it various than many other bits and racks. However various does not regularly imply much better.

Pearly white were noticeably whiter after just a couple of times of make use of. As well as with prolonged make use of, there was impressive development. Yellow teeth, although not snow white colored, were actually visibly whiter. It took a little longer than Snow vows, yet the device carries out provide end results rather quickly.

Permit’s encounter it. A number of the best addicting beverages as well as behaviors are actually not the very best for our brilliantly whites. The good news is, if you want white colored pearly whites, you do not have to state bye-bye to coffee, soft drink, sugary foods, tea, wine, as well as cigarette smoking since there are numerous teeth whitening sets to select from (our company still recommend that you stop the smoking cigarettes behavior for noticeable main reasons). Teeth whitening is a $ 3.2 billion all over the world market.

Price Specification Kit Snow Teeth Whitening

Luckily, if you yearn for to save amount of money, there are numerous efficient sets that you can easily utilize in your home. There are actually essentially two styles of sets: ones that bleach your teeth to take discolorations off and also ones that physically remove the stains. Activated charcoal particles have ended up being fairly prominent recently.

Whitening trays as well as bits have actually been actually the criterion for decades as well as usually depend on carbamide or even hydrogen peroxide. There is actually a third kind of teeth whitening item that merely blasts your teeth with LED illumination. Nonetheless, experts talked to through the Wirecutter mention any type of gains coming from this procedure are temporary. Only the SmileDirectClub unit in our guide utilizes this innovation, yet it is actually used together with a whitening gel.

Expectant or nursing females should certainly not utilize peroxide-based whitening products. It also isn’t suitable for little ones under 14 years aged. Price Specification Kit Snow Teeth Whitening. And, you ought to not utilize peroxide for longer than two weeks of everyday usage without the direction of a dental expert. The FDA carries out certainly not recommend utilizing any whitening gels with a peroxide concentration of more than 18%.

You require to be actually mindful making use of whitening items, as Buyer Reports describes. For instance, if your darkened pearly whites are because of the natural decreasing of pearly white enamel that possesses aging, whitening kits will certainly certainly not aid you. Also, they can easily certainly not whiten dental fillings, dentures, veneers, dental crowns, or hats. Specialists state that whitening kits are safe when made use of as pointed – Price Specification Kit Snow Teeth Whitening.

Price Specification Kit Snow Teeth Whitening

Therefore, about a full week before you start your whitening regimen, use a toothpaste especially designed for individuals along with delicate teeth or even one that accumulates enamel. As well as, avoid a time or more of utilization if you perform experience level of sensitivity. The English Dental Diary has discharged brand new study that mentions there is actually inadequate clinical proof to prove the cosmetic and health and wellness advantages of turned on charcoal tooth pastes and also particles, which they might induce tooth decay.