Is Baking Soda a Good Alternative Toothpaste?

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brush-baking-sodaOral hygiene is an important factor to our health that we should be aware and work to maintain. For many people who are learning about more natural ways of eating, living and treating our body’s, using the typical toothpaste brands that contains fluoride quickly becomes a non option. For me, I transitioned from toothpaste with fluoride to fluoride free toothpaste. From there I made my way to brushing with baking soda.

What’s wrong with regular toothpaste?

When it comes to regular toothpaste, there are better and safer alternatives. If you read the tube or box your toothpaste comes in, you will notice a warning stating that if you swallow the toothpaste, you should call poison control. The reason being is, toothpaste contains several potentially dangerous chemicals, one of these is called fluoride. Although fluoride has been shown to potentially achieve results in re-strengthening enamel, it is also a toxic substance linked to many health problems. The reason why fluoride is not recommended is because the majority of the time it is used in toothpaste and at the dentist, too much is being applied and therefore it is doing more harm than good. With there being more effective and safer alternatives, using fluoride is not a healthy choice. Using too much fluoride can make the teeth too brittle and therefore more susceptible to cavities and dental fluorosis. Considering that 1 in 3 children in the US now have dental fluorosis, we are clearly using too much fluoride. Another reason is that toothpastes contain ingredients like polyethylene glycols, triclosan, strontium, benzene, and tin, which are all potentially harmful to human health. Toothpaste also contains high levels of glycerin. When there is high levels of glycerin left on our teeth, it takes quite a long time before it wears off and our enamel can properly strengthen again. This leaves teeth susceptible to cavities. Finally, toothpaste does not contain many natural ingredients. This of course is your choice as to whether or not you want to stick to products that are as natural as possible. You can read more about fluoride here.

Is baking soda a good option?

I first came across the idea of using baking soda when doing fluoride research for a short documentary I made called Fluoride: The Hard to Swallow Truth. I made the change over from fluoride free toothpaste to baking soda and was very happy with the results. Then I began hearing about the potential of baking soda being too abrasive for teeth and gums and that it could actually wear away at the enamel. So I began to research this to find out whether this was a good option for me, especially since I was recommending it to other people as well. I found that YES, baking soda is a good option; here’s why.

Understanding abrasivity

When a toothpaste is produced it must get FDA approval before it can be sold to the public. One of the tests that is conducted before its approval is to determine its RDA value (radioactive dentin abrasion or relative dentin abrasivity). To determine the RDA value of toothpaste, the lab tester begins with an extracted human or cow tooth. The tooth is irradiated in a neutron flux, mounted in methylmethacrylate (bone glue), stripped of its enamel, inserted into a brushing-machine, and brushed by ADA standards (reference toothbrush, 150g pressure, 1500 strokes, 4-to-1 water-toothpaste slurry). The radioactivity of the rinsewater is then measured and recorded. For experimental control, the test is repeated with an ADA reference toothpaste made of calcium pryophosphate, with this measurement given a value of 100 to calibrate the relative scale. (2)

The following are the RDA levels for popular toothpastes including baking soda which was also tested.

RDA Dentifrice brand and variety Source
07 straight baking soda Church & Dwight
08 Arm & Hammer Tooth Powder Church & Dwight
30 Elmex Sensitive Plus Elmex
35 Arm & Hammer Dental Care Church & Dwight
42 Arm & Hammer Advance White Baking Soda Peroxide Church & Dwight
44 Squigle Enamel Saver Squigle
48 Arm & Hammer Dental Care Sensitive Church & Dwight
49 Arm & Hammer Peroxicare Tartar Control Church & Dwight
49 Tom’s of Maine Sensitive (given as 40’s) Tom’s
52 Arm & Hammer Peroxicare Regular Church & Dwight
53 Rembrandt Original (RDA) Rembrandt
54 Arm & Hammer Dental Care PM Bold Mint Church & Dwight
57 Tom’s of Maine Children’s, Wintermint (given as mid-50’s) Tom’s
62 Supersmile Supersmile
63 Rembrandt Mint (‘Heffernan RDA’) Rembrandt
68 Colgate Regular Colgate-Palmolive
70 Colgate Total Colgate-Palmolive
70 Arm & Hammer Advance White Sensitive Church & Dwight
70 Colgate 2-in-1 Fresh Mint (given as 50-70) Colgate-Palmolive
79 Sensodyne Colgate-Palmolive
80 AIM Unilever
80 Close-Up Unilever
83 Colgate Sensitive Maximum Strength Colgate-Palmolive
91 Aquafresh Sensitive Colgate-Palmolive
93 Tom’s of Maine Regular (given as high 80’s low 90’s) Squigle (Tom’s)
94 Rembrandt Plus Rembrandt
94 Plus White Indiana study
95 Crest Regular (possibly 99) P&G (P&G)
101 Natural White Indiana study
103 Mentadent Squigle
103 Arm & Hammer Sensation Church & Dwight
104 Sensodyne Extra Whitening Colgate-Palmolive
106 Colgate Platinum Indiana study
106 Arm & Hammer Advance White Paste Church & Dwight
107 Crest Sensitivity Protection Colgate-Palmolive
110 Colgate Herbal Colgate-Palmolive
110 Amway Glister (given as upper bound) Patent US06174515
113 Aquafresh Whitening Indiana study
117 Arm & Hammer Advance White Gel Church & Dwight
117 Arm & Hammer Sensation Tartar Control Church & Dwight
120 Close-Up with Baking Soda (canadian) Unilever
124 Colgate Whitening Indiana study
130 Crest Extra Whitening Indiana study
133 Ultra brite (or 120-140) Indiana study (or Colgate-Palmolive)
144 Crest MultiCare Whitening P&G
145 Ultra brite Advanced Whitening Formula P&G
145 Colgate Baking Sode & Peroxide Whitening (given as 135-145) Colgate-Palmolive
150 Pepsodent (given as upper bound) Unilever
165 Colgate Tartar Control (given as 155-165) Colgate-Palmolive
168 Arm & Hammer Dental Care PM Fresh Mint Church & Dwight
200 Colgate 2-in-1 Tartar Control/Whitening or Icy Blast/Whitening (given as 190-200) Colgate-Palmolive
200 recommended limit FDA
250 recommended limit ADA

As we observe in the chart, baking soda, when used correctly, is actually less abrasive than all toothpastes. Given the unnatural nature of toothpaste and the efficacy of baking soda when it comes to keeping teeth clean and the mouth at a good Ph level, using baking soda to brush your teeth is actually more favorable than natural toothpastes.

How to brush with baking soda

Brushing with baking soda is quite simple. First start with a fresh toothbrush that does not contain any of the left over residues from your toothpaste.
1. Take a pinch of baking soda and put it into a small glass or small bowl.
2. Add a small amount of pure water (ideally not tap water) to the bowl and mix it into the baking soda. The solution should be slightly runny as you don’t want too many of the granules present. Dip your toothbrush in to get some of the solution on the brush.
3. Brush starting with your molars and then moving to the facings and backs of your teeth.
4. (optional) Once done, you can add some more water to the glass or bowl and swish it around your mouth. This will help keep your mouth alkaline.
5. Rinse out your mouth with pure water as you normally would after brushing.

Try this out for yourself and share your thoughts on how this works for you. Remember, if you have learned that baking soda is too abrasive, it may misguided information or people may have been incorrectly using baking soda to brush. As always, feel it out for yourself and make adjustments accordingly.



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CE provides a space for free thinkers to explore and discuss new, alternative information and ideas. The goal? Question everything, think differently, spread love and live a joy filled life.

  1. Butt

    I’ve been using baking soda only for a week now and I have nothing but good things to say about it, less sensitive, whiter, mouth feels cleaner. One issue I have with your article is that you say that baking soda may be bad for your enamel then prove it’s not with a study that involves a tooth pre-stripped of enamel. So how can we know if it’s bad for enamel?
    “The tooth is irradiated in a neutron flux, mounted in methylmethacrylate (bone glue), STRIPPED of its enamel, inserted into a brushing-machine”
    So the the abrasivity “test” was conducted on a tooth without enamel, so how does this prove it’s not harmful to enamel?
    Either way I’m sure regular toothpaste is worse for your enamel, I can’t prove it but I could feel it wearing down my teeth, doing everything it claims it protect them from.
    Maybe I misunderstood it, great article by the way, sorry to nitpick but after all this is the internets.

  2. joem789

    I have been using baking soda exclusively for brushing for well over a year. It has not harmed my teeth. Toothpaste (Crest) gave me mouth problems for many years. Thrush. Gingivitis. Tartar. All the things your dentist claims that toothpaste gets rid of. Guess who has to fix those problems? The dentist. He’s a fucking liar. Promotes garbage toothpaste to keep himself in business.

    Baking soda cured all my problems. I can brush once a day and my teeth still stay generally white. I get no cavities now. But I actually had a few when I used toothpaste.

    But keep in mind that products that contain baking soda, like traditional toothpastes, do not work. Once baking soda is dissolved or comes in contact with acidic ingredients, it is neutralized.

    • Renee

      I have just been reading your comment… do you mean that when we dissolve baking soda in water it is neutralized? I have just started using baking soda rather than toothpaste and am finding out if there is a “best” way to use it. Thanks!!

      • Hi Renee, I get a shot glass and fill it about 1/3 baking soda and 1/3 water to make a nice paste. Then use that to brush my teeth and tongue with a soft tooth brush. Then I swish with Hydrogen Peroxide (spit out the h202 do not swallow it lol) . Using equal parts baking soda and water should be good

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  9. Marcie Moya

    Pls explain what is H202. And need more details about oil pulling please. My front tooth is hurting and sensitive and it appears my gum is turning a tine it red. I’m sorried–but no evidLP!!!

    • H2O2 is hydrogen peroxyde

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  11. Monique

    Thank you for your article and thanks to the people how left comments. I’m convinced that I can use baking soda now for toothpaste. I’m so glad because your teeth are so clean and fresh after brushing with baking soda. And fluor is so bad for your health. Yes, i’m also happy with the comments from people how tell that they use baking soda for years and years and have healthy teeths with good enamel.

  12. Susan

    Thank you so much, Unfortunatley I’ve had dried lips for as long as I remember, and it took me awhile to figure out that it was because of my toothpaste. Baking Soda is harmless, and my lips began to heal again so THANK YOU!!

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  16. rita

    There is not one scientific fact in your entire article.

    • Diana

      The question is about whether or not baking soda is abrasive, and he offers you scientific tests results, performed by the ADA, proving that it is not. It might just not be the science you’re looking for but there are scientific facts here.

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  19. Gina

    What about killing bacteria?
    Bacteria causes both tooth decay and cavities. Conventional toothpaste kills bacteria, however baking soda does not. Do you add anything to your routine to aide this?

    • The Truth

      If you are a Vegan you don’t have to worry about the “bacteria” that you speak of.

      • Everyone has bacteria in their mouths. No matter what your diet is, bacteria is present all the time, even if you are an anal tooth cleaner. Without the bacteria, bad shit would happen to you.

    • Swishing some hydrogen peroxide will take care of that for you. Conventional toothpaste has fluoride and should not be put in your mouth at any cost. If you eat healthy and brush regularly with baking soda you wouldnt have to worry about bacteria. Bacteria can be good too.

      • alan

        Yes I agree with this. The baking soda is good for neutralising the acidity which attacks the teeth and it inhibits the bacteria but does not kill them.
        The peroxide kills them but this is a strong chemical that can be harmful if used frequently. So I suggest using the baking soda daily and the peroxide once a week or once a month.

    • Oil pulling with 2 tsp of Coconut Oil for 20 minutes a day with take care of everything baking soda does not.

  20. Very good!! I wrote a article about baking soda in portuguese:

    Thank you!

  21. Bob

    So half of the articles on baking soda say “Don’t use it too often, it will damage the enamel on your teeth!” The other half say “baking soda is the least abrasive and is even safer than using toothpaste!” Science and Google do not mix.

    • Michael

      A large number of online articles just copy what the author reads in other online articles. The common perception that bicarbonate of soda is more abrasive than commercial toothpaste is shown to be untrue, according to dentin abrasivity tests. I have use bicarbonate of soda to clean my teeth and as mouthwash for many years, and had very little dental work done and my teeth are fine.

      • luke

        Michael, please remember this study was done on DENTIN, which is below the enamel. COW DENTIN that is.

        I wonder if abrasiveness differs depending on the medium that is used? Could baking soda be non-abrasive to dentin, but abrasive to enamel?

        Enamel is what I am concerned about wearing down, as that is what protects the dentin

  22. pozzo

    I stopped reading at “The reason being is”

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