Chew a piece of gum. Studies show that chewing sugar-free gum that contains xylitol for 20 minutes a day following meals can help prevent tooth decay.[22] Chewing gum increases saliva production which in turn washes away food debris, neutralizes acids produced by bacteria, strengthens tooth enamel, and provides disease-fighting substances throughout the mouth.

The disadvantage of brush on formulas to whiten your teeth is that you are instructed to keep you teeth completely dry for about a minute after you apply the formula. The mouth works against this because it constantly produces saliva, especially right after you have brushed your teeth. This can lead to undesirable results, when areas of the teeth you have treated are touched by saliva; in other words, you can get white spots on the teeth. On the plus side, careful application of brush on formula means minimal amounts get on the gums, so irritated gums are unlikely.
Although there are many options  to whiten teeth, all of the kits you can purchase over the counter are loaded with harmful chemicals. The chemical tooth whiteners typically contain coal tars, aspartame, aluminum, floride and benzene.  The over the counter bleaches also have a very high acidity and are very abrasive which can cause damage to teeth, tooth pain and/or sensitivity, and damage the enamel. Not only are these chemicals harmful to your teeth and gums, the toxic chemicals often leak from the trays or strips and are swallowed or absorbed. As a result of the dangerous side effects and hazards with over the counter whitening, many are now opting to choose methods to naturally whiten teeth.
Whilst these remedies might be “natural” and might show results for “whiter” teeth, they are not healthy for the oral cavity. Although products such as baking soda have been used as home care adjuncts for decades, it can be destructive to both the teeth and gums. Baking soda is much too abrasive to use on the teeth. You might not see negative results after one use, but long-term use can cause abrasion and recession. Abrasion and recession can then lead to tooth sensitivity, cavities, and most importantly periodontal disease (which would render treatment more costly than professional whitening). Also-when whitening, you are not changing the color of the enamel. Whitening targets the dentin of the tooth not the enamel. However, I agree that it is important to use products to strengthen enamel. Products containing fluoride are great for strengthening the enamel.
The antibiotic tetracycline causes gray teeth in children whose teeth are still developing. Antibacterial mouthwashes that contain chlorhexidine or cetylpyridinium chloride can also stain teeth. Some antihistamines, antipsychotic drugs, and blood pressure medications cause tooth stains, as can iron and excess fluoride. If bleaching doesn't help, ask your dentist about dental bonding, in which a tooth-colored material is applied to teeth.

4. Baking Soda: Baking soda is widely known for its uses for household cleaning and whitening. Baking soda is among the easiest and most efficient ways to naturally whiten teeth. Baking soda is slightly abrasive and helps remove stains on teeth. Simply just brush teeth with baking soda mixed with a little water to create a paste. Or you can use a mixture of baking soda and coconut oil. This is also a great homemade toothpaste. I use baking soda and coconut oil to brush my teeth every day.
Activated charcoal, even though it is black, can actually help whiten teeth naturally. It seems counterintuitive, but charcoal is known for its ability to pull toxins out of things. Stains on your teeth are no different. Dip your toothbrush into activated charcoal powder, brush on your teeth, and leave for a few minutes. Rinse well and follow with your regular toothpaste. (Find activated charcoal powder here.)
However, lemon juice is acidic. If we were in your shoes, we would not use lemon juice for brushing our teeth, because the acidity may weaken your enamel and increase your chances of damaging it as you brush. We explain more on acidity in our articles “How to Drink Kombucha and NOT Destroy Your Teeth“, “Can Brushing After a Meal Damage My Teeth?“, and “Tracking Your Saliva pH“.

Give hydrogen peroxide a try. Many commercial mouthwashes and toothpastes have a 1.5% concentration of hydrogen peroxide, a powerful bleaching agent with a chemical composition that is incredibly close to water. This can help whiten your teeth.[20][21] Hydrogen peroxide also helps kill bacteria, wash away debris and is especially useful to prevent gingivitis.
Floss your teeth regularly. Flossing at least once a day helps remove plaque from the areas between your teeth where your toothbrush can’t reach as plaque that is not removed eventually hardens into tartar and can lead to gum disease.[9] Keep in mind that flossing may cause some discomfort at first but should not be painful either. If you floss too hard, you can damage the tissue between your teeth. With daily flossing and brushing, the discomfort should ease within a week or two. It may take a while to get used to flossing but it should slowly turn into a habit. If your pain persists, talk to your dentist. The proper steps to flossing your teeth are:

Although there are many options  to whiten teeth, all of the kits you can purchase over the counter are loaded with harmful chemicals. The chemical tooth whiteners typically contain coal tars, aspartame, aluminum, floride and benzene.  The over the counter bleaches also have a very high acidity and are very abrasive which can cause damage to teeth, tooth pain and/or sensitivity, and damage the enamel. Not only are these chemicals harmful to your teeth and gums, the toxic chemicals often leak from the trays or strips and are swallowed or absorbed. As a result of the dangerous side effects and hazards with over the counter whitening, many are now opting to choose methods to naturally whiten teeth.
Fluoride is a naturally occurring mineral found in water. Toothpastes with fluoride help prevent tooth decay by strengthening your tooth enamel and fighting away bacteria that cause cavities. Fluoride toothpaste is also recommended for toddlers and children but in a lower percentage. Too much fluoride can weaken the enamel. For children younger than three years, an amount equal to a grain of rice is enough. For children aged three to six years, use a pea-sized amount of fluoride toothpaste.
This is the first I’ve heard of tumeric whitening teeth, but am not surprised. I recently got some organic rhizomes and am trying to grow, as well as drying to powder. Now I have another use. This is going to sound totally gross, but I am chewing a small piece for a couple of minutes before using your remineralizing tooth paste, (which is fantastic for whitening!) My toothbrush does not keep the yellow stain after using.
I simply dip my toothbrush into some powdered charcoal that I keep in a small jar on my counter and brush as normal. Another way that will produce results more quickly is to mix a teaspoon of charcoal powder into some water and swish with it for a few minutes. Then, spit the water and leave the remaining charcoal in the mouth for a few minutes so that it has time to bind to stains.
Do you happen to know the RDA / hardness of activated charcoal? It seems like it would be way too abrasive and hard to brush your teeth with. Perhaps the disparity of reports between users is that some are just swishing it around, while others are brushing it into their teeth, which, at that point, seems like it would not be the actual characteristics of the charcoal doing the whitening, as it would instead be the abrasive quality of it in general. (After all, diamonds are made of carbon too…)
Rinse your mouth with water. Rinsing with water after meals or drinking caffeinated beverages will help remove any leftover food or residue from your teeth will help prevent stain and decay. [13] This method is especially useful if you’re away from home and don’t get a chance to brush or floss after eating. Drinking water throughout the day and rinsing with clean water after meals is the most underrated method of overall oral health.

If you have only minimal staining, whitening toothpaste is clearly the easiest way to whiten your teeth at home. Brushing two to three times a day can whiten your teeth four to five shades after about a month of consistent use. Formulas for tooth whitening toothpaste are all about equivalent in effect, but kids under 16 should not use them. They can cause irritation to the gums and teeth of younger kids.
Make a paste of baking soda and lemon juice. It will likely fizz and foam a bit. Wait for it to settle down and use this solution to brush your teeth. Rinse well. You don’t need to follow with your regular toothpaste, but you can if you wish. Lemon juice contains citric acid, so it can damage your teeth if used too often. Only do this once a week for best results.

The disadvantage of brush on formulas to whiten your teeth is that you are instructed to keep you teeth completely dry for about a minute after you apply the formula. The mouth works against this because it constantly produces saliva, especially right after you have brushed your teeth. This can lead to undesirable results, when areas of the teeth you have treated are touched by saliva; in other words, you can get white spots on the teeth. On the plus side, careful application of brush on formula means minimal amounts get on the gums, so irritated gums are unlikely.
Xylitol from birch is the best. Shelly, the role of xylitol in reversing tooth decay is that it helps correct the ph in your mouth. This is most important for anyone who has any metal fillings, retainers or other dental work. I’ve healed a cavity naturally by using xylitol as a part of my oral health routine. It is not a cure all, and xylitol from corn is not the same as xylitol from birch bark. With any metal work in your mouth, you are almost ensuring you will need more dental work, unless you work very hard to keep the ph of your mouth correct.
I took tetracycline in the 70’s and ended up with a permanent yellowish color to my teeth. Lately I have been brushing my teeth with tooth gel (not toothpaste) and a dipping of the toothbrush in a little hydrogen peroxide at the same time. At first I thought nothing was happening, but after several weeks, I finally looked at my teeth and they were white! I was really surprised. Hopefully they will continue to become whiter. And, now I know you have to be patient!!! I plan to add baking soda, too. BTW, for some reason, toothpaste makes the inside of my mouth slough off, the same as another person mentioned above. So I have to brush with “tooth gel”, which is getting harder and harder to find.
Strawberries are high in Vitamin C, which can help break-down plaque that is causing your teeth to look yellow. It also has an enzyme called malic acid, which may help to remove surface stains. The salt acts as an abrasive portion of the paste, physically scrubbing away stain-causing gunk, and the baking soda is an extra touch that you can choose to leave out if you’d prefer (I just like to add it to anything involving my teeth.)
4. Baking Soda: Baking soda is widely known for its uses for household cleaning and whitening. Baking soda is among the easiest and most efficient ways to naturally whiten teeth. Baking soda is slightly abrasive and helps remove stains on teeth. Simply just brush teeth with baking soda mixed with a little water to create a paste. Or you can use a mixture of baking soda and coconut oil. This is also a great homemade toothpaste. I use baking soda and coconut oil to brush my teeth every day.
Whitening devices appeared on store shelves approximately two years ago, bringing elements of professional lightening to the user at home. Heat works to accelerate the breakdown of hydrogen peroxide, creating more whitening oxygens. High-intensity lights are required to accelerate the reaction rate of the hydrogen peroxide, meaning users and those in the immediate vicinity must wear protective eyewear. By combining the professional elements of light and heat in a closed system mouthpiece, along with a non-migrating gel, the device calls upon the professional whitening experience. If you are short on time, this device may whiten your teeth in two days. 
Whitening strips revolutionized the industry 10 years ago, as researchers figured out how to impregnate hydrogen peroxide on a polyethylene strip that the user places directly on the teeth. This product has existed in several iterations over the years. The various types of strips have differed in terms of the level of hydrogen peroxide in the gel to modifications in the shape and thicknesses of the strip. The efficacy is excellent for an OTC product, but you must be cautious not to burn your fingers or rest the strip on the gums, as this will cause irritation over time. If you are patient and compliant, you’ll see results in a few weeks. This method is best if you have two weeks to whiten.
I’ve struggled with staining/yellowish teeth for quite some time due to my “rough” enamel (which my hygienist diagnosed, explaining that it tends to grab onto stains). A good cleaning at the dentist’s would always restore my teeth to their normal whiteness but the yellowing would return quickly and no amount of activated charcoal, oil pulling or baking soda would help. I decided to try baking soda brushing followed by coconut oil pulling twice daily after my most recent cleaning, which was just before this past Christmas. And I’m thrilled to report that my regimen is working! My teeth still feel very clean and look shiny and white (in a normal way, not blindingly white of course). I used whitening strips in my 20s to achieve this but they made my teeth horribly sensitive. I’m so happy to have found a solution to this frustrating and embarrassing issue! I simply brush with a pinch of baking soda, concentrating on my front teeth, and then rinse and swish with coconut oil for 10-15 min, morning and night. It really works. 🙂
Similarly to apple cider vinegar, some swear that using citrus fruits — including lemon and/or orange peels, or lemon essential oil, which contain beneficial acids — also does the trick for whitening teeth. These foods overall are very healthy, such as benefiting digestion due to regulating levels of stomach acid, but the high acid content can also eventually wear away the enamel on the teeth if used too aggressively. Like with ACV, if you use lemon or orange peel on your teeth, always rinse your mouth afterward to be on the safe side. Use the hydrogen peroxide oral rinse formula described above for best results.
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