Kit Snow Teeth Whitening Insurance Cover

Kit Snow Teeth Whitening Insurance Cover

Snowfall is a leader on the property teeth whitening market. The proprietary whitening formula is applauded for having the ability to remove also the most difficult spots without creating sensitivity. SHORTCUTSProfessional-quality pearly whites whitening at homeOver 500,000 happy customersSuperior results without triggering sensitivityHelps eliminate difficult coffee and also red or white wine stains30-days cash back guaranteeSnow brings in teeth whitening convenient without any workplace visits, awkward bits, or even messy treatment.

The Snow therapy is actually an LED-activated teeth whitening system that targets all sort of blemishes. This includes those triggered by wine, tea, coffee, as well as cigarette. The patent-pending light-accelerated modern technology triggers no negative effects, as the wavelengths are certainly not hazardous. It is FDA-approved, enamel-safe, and also doesn’t induce level of sensitivity. You don’t need to have any sort of dentist sees or prescriptions to carry out the treatment coming from the comfort of your personal home.

Kit Snow Teeth Whitening Insurance CoverKit Snow Teeth Whitening Insurance Cover

Snow additionally declines to examine on animals. There are actually two sets to pick from. The contents of each should last for over 90 uses. Allow’s malfunction what they have and just how to pick the greatest one for you. This package is Snow’s best-known product, because of which they acquired their popularity.

The All-in-One kKt from Snow consists of: a wired LED mouth piece,3 whitening sticks,1 extra-strength whitening wand, anda cover manual. The mouth piece is compatible with the Snowfall application, so you may regulate how deeply you intend to bleach your teeth. Kit Snow Teeth Whitening Insurance Cover. It possesses a wire that lets you attach to USB, iPhones, as well as other smartphones.

Kit Snow Teeth Whitening Insurance Cover

It may be actually apparent, yet the most significant distinction between the pair of kits is the cordless functionality. Over three million were actually invested in r & d, creating brand new functionalities feasible. The contents of The Wireless Charging Home Pearly Whites Whitening Kit feature: a wireless LED mouthpiece, a docking terminal,3 whitening sticks,1 the greatest strength whitening wand,1 desensitizing cream, lip procedure, USB cable television, andan instructions.

The last feature allows the procedure to be adjusted to your demands. It courses automatically, therefore all of you need to carry out is activate it on the application. The mouth piece is water-resistant. This suggests you may securely use it in the downpour. What is actually additional, it sterilizes on its own while billing. There is additionally a red-light treatment option for your periodontals.

Depending on to investigation, it aids: eliminate bacteria, reduce tooth sensitivity, improve blood stream flow in the periodontals, protect against receding gum lines, increase bone tissue density, andminimize post-whitening irritation. The docking terminal features an inconspicuous style, people commonly review the method it seeks to a bluetooth sound speaker. Besides sanitizing and charging the mouthpiece, it likewise functions as a penholder and traveling scenario for your serum sticks.

Effects are actually guaranteed to be obvious after 7 times of making use of. The sets are user-friendly ideal away from package, thus basically any individual can whiten their teeth along with Snowfall items. Below is a basic review: Safe forThose along with crowns, links, and veneersTeeth with fillingsPregnant womenBreastfeeding momsSensitive dentitionAdditionally, they deliver their products worldwide, therefore your area will not confine you.

Kit Snow Teeth Whitening Insurance Cover

It is advised that you clean and use floss your teeth just before carrying out the treatment. Oral care aids clear away any sort of food items clutter and contaminations (Kit Snow Teeth Whitening Insurance Cover). This enables also coverage of the item. You wish all surface areas of your teeth to be brightened!Moreover, oral plaque buildup and germs, which at times acquire entraped in between the cream and the teeth, produce it more probable for you to experience dental cavity or even various other dental issues.

This step is certainly not needed to have if your teeth does not typically react to temperature level or even delightful or even difficult foods items. It not simply minimizes level of sensitivity yet also reinforces the pearly white enamel. The formula is furthermore filled up along with minerals and also vitamins. If you choose to utilize the anesthetizing cream, perform this 15 moments prior to the whitening treatment and after that rinse out.

Use either the regular or extra-strength whitening lotion, relying on the results you wish. Spin the wand to acquire the item out. You might need to perform this approximately 30 times when you first use it. The brush pointer are going to assist you use the lotion. Visualize you are repainting a white colored sentry fence (Kit Snow Teeth Whitening Insurance Cover).

If you love your periodontals rub it off the greatest you can. A tiny quantity will not injure, yet the item was created for teeth just. The cordless LED device possesses a “shake to wake” feature. Below are actually the general instructions for this function: Shake once to switch it on.

Kit Snow Teeth Whitening Insurance Cover

A 3rd opportunity for the gum treatment. Drinking it four times are going to put it to sleep. You can easily likewise download the application to individualize your procedure. As soon as you are done, put the illumination back in to the owner. If you have actually the wired mouthpiece instead, just connect it as much as your phone to activate it.

Keep it in for 9 to half an hour every day, 21-30 times in a row. If you take place to experience some sensitiveness, take a 1 to 3-day break as well as proceed the treatment later. It is actually ideal to administer your sessions prior to going to mattress. In this manner they do not disrupt eating or alcohol consumption.

The wireless kind will certainly self-sanitize while billing. Establishment your whitening sticks in the refrigerator after using all of them. This may help all of them maintain their durability over a longer time frame. The sets feature a supply for months of treatments, so it is actually a good idea to take the greatest feasible treatment of your items.

The body may be reviewed to an expert therapy setting you back $500-$ 1,000. For a considerably reduced price you may do this from the convenience of your personal residence. You can purchase your Snowfall whitening set precisely their web site, yet it’s also on call on Amazon. Listed here is actually an introduction of just how much Snow whitening products presently expense: ProductPriceAll-in-one kit$ 199Wireless demanding set$ 299Extra strength refills$ 49Add-on for delicate pearly whites$ 25Serum refill sticks$ 25There are actually also repayment alternatives for those who don’t would like to be actually out the cash at one time – Kit Snow Teeth Whitening Insurance Cover.

Kit Snow Teeth Whitening Insurance Cover

Kit Snow Teeth Whitening Insurance CoverKit Snow Teeth Whitening Insurance Cover

This are going to occur immediately as well as no expenses are going to be sent out, so you can merely appreciate your items. There is actually likewise a 30-day money-back guarantee and also a 5-year manufacturer’s warranty on electronic devices. It’s authentic after you activate it on the Snow internet site. SHORTCUTSProfessional-quality pearly whites whitening at homeOver 500,000 satisfied customersSuperior outcomes without causing sensitivityHelps remove challenging coffee and red wine stains30-days refund ensure Authority Dental allows payment from third-party providers.

After seeing social networks flooded along with folks raving about just how spectacular the Snow Pearly white Whitening system is, I needed to discover out. One that integrates all the greatest parts of pearly whites whitening and also neglects all the poor ones? Yeah, sure (Kit Snow Teeth Whitening Insurance Cover). If you are a tough enthusiast that everything also excellent to be true is precisely that, right here is actually a pearly whites whitening unit to verify you incorrect.

Snow is actually also very cost effective, at a lot less than 1/10th the price of professional whitening at the dentist. Likewise, Snowfall Teeth Whitening performs not lead to sensitiveness. You can easily possess your ice cream and also eat it also! Or even is actually that birthday cake? In either case, you can have each when your teeth may not be dropping out from bangs of chemical therapies that white bits frequently include.

Frankly,. The LED ignited mouth piece accelerates the whitening from the gel on your pearly whites leading to a lot faster, much longer lasting as well as extra efficient whitening without triggering level of sensitivity. The LED light enables you to use Snowfall for a shorter time frame along with the same whitening has an effect on contrasted to other systems.

Kit Snow Teeth Whitening Insurance Cover

These are actually actual, overdue Snow clients’ reviews/before as well as after teeth whitening images accepted us within the final 1 month. These are genuine, overdue Snow customers’ reviews/before and after pearly whites whitening pictures undergone us within the last 1 month. Incredible item !! A single that has actually helped me! As well as no sensitiveness!! AMAZING!! Bought this emotion quite skepitcal (Kit Snow Teeth Whitening Insurance Cover).

Kit Snow Teeth Whitening Insurance CoverKit Snow Teeth Whitening Insurance Cover

Passion it !!! Ideal cash I have invested in a doubtful product. Finally something that really measures up to its insurance claims! I have been utilizing this and also will encourage, I have actually found a distinction after 4 times I love this product! I have actually merely utilized it 3 times user-friendly and no sensitivity…, I also failed to remember to utilize the after product for the periodontals the 1st 2 times! …

It performs specifically what they claimed it would certainly perform, yes to everything!!!! I was rather unconvinced but I am actually extremely impressed after 2 make uses of today. “The ideal teeth whitening body for vulnerable teeth” “Take teeth whitening to the following degree with an at-home set that rivals a check out to your area friendly dental professional.” “Two close buddies discussed exactly how white colored my pearly whites cared for utilizing this kit merely two times!”.

When you get the Snow whitening body, you get the complying with in every package: Lotion sticks LED rack Shade quick guide that assists you track your development Guidelines on how to utilize the systemGetting began with Snow is easy, and also the manual will stroll you via whatever you require to recognize on just how to utilize the whitening system.

Kit Snow Teeth Whitening Insurance Cover

Kit Snow Teeth Whitening Insurance CoverKit Snow Teeth Whitening Insurance Cover

It doesn’t live up to a number of its guarantees, however it’s still a beneficial assets if you are actually appearing for whiter pearly whites, as well as is much better than a lot of various other whitening items around. The Snowfall is actually relatively direct to utilize. Comb your pearly whites prior to you begin. Apply the serum to your pearly whites thoroughly, being sure you get back at insurance coverage.

After 10-30 minutes, clear away the rack as well as rinse your teeth. Regular this process over the upcoming days as well as full weeks. This procedure corresponds to a few other whitening items. However the product and also LED light visibility produce it different than the majority of other bits and holders. But different doesn’t regularly suggest better.

Pearly white were clearly whiter after a few times of utilization. As well as with stretched use, there was impressive progression. Yellow teeth, although not powder snow white colored, were noticeably whiter. It took a little longer than Snow assures, yet the unit performs give results reasonably quickly.

Let’s face it. Several of one of the most addicting refreshments and also habits are certainly not the greatest for our pearly whites. The good news is, if you wish white colored teeth, you don’t must leave to coffee, soda, sugary foods, tea, red or white wine, and also smoking given that there are actually numerous teeth whitening kits to select from (our experts still highly recommend that you kick the smoking practice for noticeable causes). Pearly white whitening is actually a $ 3.2 billion all over the world industry.

Kit Snow Teeth Whitening Insurance Cover

Thankfully, if you desire to save money, there are several efficient sets that you may make use of at house. There are generally two forms of kits: ones that bleach your teeth to take blemishes off as well as ones that actually remove the spots. Switched on charcoal powders have actually ended up being quite well-liked recently.

Whitening holders as well as strips have actually been the criterion for years as well as generally rely upon carbamide or even hydrogen peroxide. There is a third kind of pearly whites whitening product that simply blasts your pearly whites with LED light. Having said that, professionals talked to due to the Wirecutter state any gains coming from this procedure are temporary. Only the SmileDirectClub device in our manual utilizes this technology, yet it is made use of in combination with a whitening gel.

Expectant or nursing women ought to not utilize peroxide-based whitening items. It also isn’t suitable for little ones under 14 years of ages. Kit Snow Teeth Whitening Insurance Cover. And, you need to not make use of peroxide for longer than two weeks of daily use without the direction of a dental practitioner. The FDA performs certainly not advise making use of any whitening gels along with a peroxide focus of more than 18%.

You need to become cautious making use of whitening items, as Consumer News clarifies. As an example, if your dark teeth are actually due to the all-natural decreasing of tooth polish that includes getting older, whitening sets are going to certainly not assist you. Additionally, they can not bleach fillings, dentures, veneers, crowns, or limits. Pros claim that whitening packages are actually safe when used as guided – Kit Snow Teeth Whitening Insurance Cover.

Kit Snow Teeth Whitening Insurance Cover

Therefore, about a week prior to you begin your whitening program, use a toothpaste especially developed for folks along with delicate pearly whites or even one that develops up polish. And, bypass a day or more of utilization if you do experience level of sensitivity. The English Dental Diary has released new research study that says there wants scientific documentation to confirm the cosmetic as well as health and wellness advantages of switched on charcoal toothpastes as well as particles, and also they might trigger decay.

Kit Snow Teeth Whitening Insurance Cover

Kit Snow Teeth Whitening Insurance Cover

Snowfall is actually a forerunner on the house pearly whites whitening market. The proprietary whitening formula is actually commended for having the ability to eliminate also the toughest stains without resulting in sensitiveness. SHORTCUTSProfessional-quality pearly whites whitening at homeOver 500,000 happy customersSuperior outcomes without creating sensitivityHelps remove hard coffee and red or white wine stains30-days loan back guaranteeSnow brings in teeth lightening hassle-free without office sees, uneasy bits, or unpleasant application.

The Snowfall procedure is an LED-activated pearly whites whitening unit that targets all sort of stains. This includes those triggered by wine, herbal tea, coffee, and cigarette. The patent-pending light-accelerated innovation results in no adverse effects, as the insights are not dangerous. It is FDA-approved, enamel-safe, and also does not generate level of sensitivity. You do not need to have any dental practitioner visits or even prescriptions to accomplish the procedure coming from the convenience of your very own house.

Kit  Snow Teeth Whitening Insurance CoverKit Snow Teeth Whitening Insurance Cover

Snow additionally rejects to check on pets. There are pair of sets to select coming from. The contents of each must last for over 90 treatments. Let’s break what they have and also just how to decide on the greatest one for you. This kit is actually Snow’s best-known product, thanks to which they acquired their popularity.

The All-in-One kKt coming from Snow consists of: a wired LED mouth piece,3 whitening sticks,1 extra-strength whitening stick, anda shade overview. The mouthpiece works along with the Snow application, thus you may manage just how intensely you really want to bleach your teeth. Kit Snow Teeth Whitening Insurance Cover. It comes along with a cable that allows you connect to USB, apples iphone, and various other cell phones.

Kit Snow Teeth Whitening Insurance Cover

It may be evident, but the most significant distinction in between both sets is actually the wireless functionality. Over 3 million were spent on trial and error, creating brand new performances achievable. The materials of The Wireless Charging Home Teeth Whitening Package include: a wireless LED mouthpiece, a docking terminal,3 whitening wands,1 maximum toughness whitening wand,1 numbing lotion, lip treatment, USB cable television, andan instructions.

The final attribute makes it possible for the therapy to become adapted to your needs. It courses instantly, therefore all of you must do is activate it on the app. The mouthpiece is actually waterproof. This suggests you may safely use it in the shower. What’s even more, it sterilizes on its own while billing. There is additionally a red-light therapy choice for your periodontals.

Depending on to analysis, it aids: remove microorganisms, lessen pearly white sensitiveness, boost blood stream flow in the periodontals, protect against receding periodontal lines, rise bone tissue thickness, andminimize post-whitening irritation. The docking terminal includes a hidden style, individuals commonly review the way it wants to a bluetooth audio speaker. Besides disinfecting and billing the mouthpiece, it likewise functions as a penholder and also travel scenario for your product sticks.

Results are actually assured to become apparent after 7 days of making use of. The sets are actually user-friendly best out of package, so practically anyone can easily lighten their pearly whites with Snow products. Below is actually a general outline: Safe forThose along with dental crowns, bridges, and also veneersTeeth along with fillingsPregnant womenBreastfeeding momsSensitive dentitionAdditionally, they deliver their items worldwide, so your site won’t restrict you.

Kit Snow Teeth Whitening Insurance Cover

It is encouraged that you clean as well as floss your pearly whites just before doing the therapy. Dental health helps clear away any sort of food items particles and also contaminations (Kit Snow Teeth Whitening Insurance Cover). This allows for even insurance coverage of the item. You really want all surface areas of your pearly whites to be actually brightened!Moreover, cavity enducing plaque and also microorganisms, which often obtain caught in between the serum and the teeth, make it more very likely for you to experience dental caries or various other dental concerns.

This action is certainly not needed to have if your teeth doesn’t commonly respond to temp or even delightful or even difficult foods items. It not just decreases level of sensitivity but also builds up the tooth polish. The formula is actually in addition loaded along with minerals and vitamins. If you decide to use the making less sensitive cream, perform this 15 minutes just before the whitening session and then rinse.

Use either the frequent or even extra-strength whitening serum, depending upon the outcomes you wish. Spin the wand to acquire the product out. You may must do this up to 30 times when you first use it. The comb tip are going to help you use the cream. Visualize you are coating a white colored sentry fence (Kit Snow Teeth Whitening Insurance Cover).

If you love your gum tissues clean it off the very best you can. A percentage will not hurt, however the item was actually made for pearly whites only. The cordless LED device possesses a “shake to wake” feature. Right here are the general directions for this attribute: Shake the moment to transform it on.

Kit Snow Teeth Whitening Insurance Cover

A 3rd opportunity for the periodontal therapy. Drinking it 4 opportunities will certainly put it to sleep. You can additionally download and install the app to personalize your procedure. As soon as you are actually performed, put the lighting back in to the owner. If you have actually the wired mouthpiece as an alternative, simply attach it as much as your phone to activate it.

Keep it in for 9 to thirty minutes every day, 21-30 days in a row. If you take place to experience some sensitivity, take a 1 to 3-day rest and also proceed the therapy eventually. It’s best to administer your sessions prior to going to bed. Through this they do not obstruct eating or drinking.

The wireless kind is going to self-sanitize while demanding. Establishment your whitening wands in the fridge after utilizing all of them. This can easily help all of them maintain their stamina over a longer time frame. The sets feature a supply for months of requests, so it’s a really good concept to take the most ideal achievable care of your items.

The unit can be compared to an expert procedure setting you back $five hundred-$ 1,000. For a much lesser cost you may do this coming from the convenience of your personal home. You can purchase your Snowfall whitening package right on their site, however it is actually also accessible on Amazon. Below is a summary of exactly how much Snow whitening products currently price: ProductPriceAll-in-one set$ 199Wireless asking for kit$ 299Extra toughness refills$ 49Add-on for delicate pearly whites$ 25Serum refill wands$ 25There are actually even payment choices for those that don’t wish to be actually out the cash all at when – Kit Snow Teeth Whitening Insurance Cover.

Kit Snow Teeth Whitening Insurance Cover

Kit  Snow Teeth Whitening Insurance CoverKit Snow Teeth Whitening Insurance Cover

This will definitely occur automatically as well as no costs will certainly be actually sent, so you can merely appreciate your products. There is actually additionally a 30-day money-back warranty and also a 5-year guarantee on electronic devices. It stands after you trigger it on the Snowfall internet site. SHORTCUTSProfessional-quality teeth whitening at homeOver 500,000 happy customersSuperior end results without leading to sensitivityHelps remove difficult coffee as well as a glass of wine stains30-days cash back ensure Authorization Dental approves commission coming from third-party companies.

After seeing social networks flooded with people going crazy concerning how amazing the Snowfall Teeth Whitening system is, I must discover. One that incorporates all the most effective parts of teeth whitening and also neglects all the bad ones? Yeah, sure (Kit Snow Teeth Whitening Insurance Cover). If you are actually a solid enthusiast that anything as well really good to be actually real is actually precisely that, right here’s a teeth whitening device to verify you inappropriate.

Snowfall is additionally tremendously affordable, at much less than 1/10th the cost of specialist whitening at the dental practitioner. Likewise, Snow Pearly Whites Whitening performs certainly not create sensitiveness. You can possess your gelato as well as consume it also! Or even is actually that cake? In any case, you may possess both when your pearly whites may not be dropping out from bangs of chemical treatments that white strips usually consist of.

Honestly,. The LED lighted mouthpiece increases the whitening from the gel on your pearly whites leading in faster, much longer long lasting and also even more reliable whitening without leading to level of sensitivity. The LED lighting enables you to use Snow for a much shorter time period along with the exact same whitening has an effect on compared to other bodies.

Kit Snow Teeth Whitening Insurance Cover

These are actually true, unsettled Snow clients’ reviews/before and after teeth whitening photos provided to our company within the last one month. These are genuine, unpaid Snow customers’ reviews/before and after pearly whites whitening pictures accepted us within the final 30 days. Spectacular product !! Only one that has benefited me! And also no sensitivity!! AMAZING!! Procured this emotion extremely skepitcal (Kit Snow Teeth Whitening Insurance Cover).

Kit  Snow Teeth Whitening Insurance CoverKit Snow Teeth Whitening Insurance Cover

Passion it !!! Best funds I have actually invested in a questionable product. Ultimately one thing that definitely meets its claims! I have been actually using this as well as will recommend, I have actually viewed a variation after 4 days I adore this product! I have just utilized it 3 times easy to utilize and no sensitiveness…, I also neglected to make use of the after item for the periodontals the first 2 times! …

It carries out precisely what they said it would carry out, yes to whatever!!!! I was fairly hesitant however I am actually quite pleased after 2 usages today. “The most effective pearly whites whitening unit for sensitive teeth” “Take teeth whitening to the following confess an at-home set that equals a browse through to your neighborhood helpful dental professional.” “2 friends discussed exactly how white colored my pearly whites cared for using this kit just 2 opportunities!”.

When you buy the Snow whitening system, you acquire the adhering to in every set: Lotion wands LED holder Shadow manual that helps you track your improvement Instructions on just how to make use of the systemGetting started with Snowfall is simple, and also the overview will definitely walk you by means of every little thing you need to have to understand on just how to utilize the whitening system.

Kit Snow Teeth Whitening Insurance Cover

Kit  Snow Teeth Whitening Insurance CoverKit Snow Teeth Whitening Insurance Cover

It doesn’t meet a few of its own commitments, yet it is actually still a worthwhile financial investment if you are actually seeking whiter pearly whites, and is actually far better than many other whitening products out there certainly. The Snow is fairly uncomplicated to make use of. Comb your teeth prior to you start. Apply the lotion to your pearly whites meticulously, making certain you even the score insurance coverage.

After 10-30 minutes, eliminate the tray and also rinse your pearly whites. Loyal this process over the next times and full weeks. This method is similar to some other whitening items. However the cream as well as LED lightweight exposure create it various than many various other bits and trays. But various doesn’t consistently suggest better.

Teeth were clearly whiter after just a couple of times of utilization. As well as along with expanded usage, there was significant progression. Yellow teeth, although certainly not snowfall white, were clearly whiter. It took a bit longer than Snow promises, but the system carries out ship outcomes rather quickly.

Let’s face it. A number of the absolute most addicting drinks and also habits are actually certainly not the absolute best for our pearly whites. The good news is, if you prefer white teeth, you don’t have to leave to coffee, soda, sugary foods, herbal tea, wine, and also smoking cigarettes due to the fact that there are actually many teeth whitening sets to pick from (our company still advise that you stop the smoking cigarettes routine for apparent reasons). Pearly white whitening is a $ 3.2 billion worldwide field.

Kit Snow Teeth Whitening Insurance Cover

Fortunately, if you desire to spare amount of money, there are a number of effective sets that you can use in the house. There are generally 2 sorts of sets: ones that bleach your pearly whites to take discolorations off and also ones that literally scrape off the discolorations. Turned on charcoal grains have actually ended up being pretty popular over the last few years.

Whitening racks and strips have actually been actually the requirement for many years and also usually depend on carbamide or hydrogen peroxide. There is a third form of teeth whitening product that merely blasts your teeth with LED illumination. However, professionals questioned due to the Wirecutter mention any sort of gains from this treatment are actually transient. Merely the SmileDirectClub body in our overview utilizes this modern technology, yet it is actually utilized in combination along with a whitening gel.

Pregnant or nursing women should not use peroxide-based whitening items. It also isn’t suitable for youngsters under 14 years of ages. Kit Snow Teeth Whitening Insurance Cover. As well as, you need to certainly not make use of peroxide for longer than two weeks of day-to-day usage without the supervision of a dentist. The FDA carries out certainly not highly recommend utilizing any whitening gels with a peroxide concentration of greater than 18%.

You need to be cautious using whitening products, as Individual Reports details. For example, if your dark pearly whites are actually due to the organic thinning of pearly white polish that possesses growing old, whitening kits will certainly not assist you. Additionally, they can certainly not whiten dental fillings, dentures, laminates, crowns, or hats. Professionals state that whitening sets are actually risk-free when used as guided – Kit Snow Teeth Whitening Insurance Cover.

Kit Snow Teeth Whitening Insurance Cover

Consequently, regarding a full week before you begin your whitening regimen, make use of a tooth paste particularly developed for people along with delicate teeth or even one that develops enamel. And, skip a time or more of making use of if you carry out experience level of sensitivity. The English Dental Publication has released brand-new study that mentions there is not enough clinical proof to verify the cosmetic and also wellness benefits of switched on charcoal tooth pastes and also powders, and also they might result in tooth decay.