How To Prevent Cavities Naturally

Oct 31, 2017

Cavity Prevention Remedies

You may think that there is little you can do to heal a cavity aside from go to your dentist and have it filled. While this is likely the most common option, it is not the only remedy. In fact, recent research suggests that a number of natural treatments can be used to reverse tooth decay without the drill. If you are not much of one for needles or even if you just prefer making healthier choices for yourself, consider treating (or preventing) your next cavity by making dietary changes, boosting your nutrient intake, using a mineralizing toothpaste, and oil pulling.

What Are the Best Ways to Reverse Tooth Decay Naturally?

Cavities are the result of tooth decay or the destruction of your actual tooth structure. The goal in treating a cavity is removing the decaying material as well as any bacteria that is causing decay and supporting the development of the tooth to heal. Previously research only supported the typical practice of drilling and then filling a cavity; however, today research suggests that a variety of different remedies can be used to stop decay and remineralize the tooth. In fact, some of the best ways to heal a cavity include making dietary changes, increasing your nutrient intake, brushing with a mineralizing toothpaste, and oil pulling. Nonetheless, you should always consult your dentist prior to self-treatment.

1. Dietary Changes

The food you eat greatly affects your overall health as well as the health of your teeth. If you are trying to heal a tooth, considering limiting sugars in your diet as these food particles get into the tooth crevices and actually initiate decay. Likewise, you should eliminate foods high in phytic acid – a mineral blocker and enzyme inhibitor typically found in grains, seeds, nuts, and beans.

2. Nutritional Supplements

In addition to eliminating certain foods, you should also focus on incorporating nutrient-dense foods in your diet. You may even want to take daily supplements. It is important that you eat a diet rich in calcium, vitamin D3, vitamin K2, magnesium, and phosphorus. Try to incorporate additional raw and cooked vegetables, raw dairy, fruit, and animal protein in your diet. Consider taking a vitamin D supplement of 5,000 IU on days you are not in the sun.

3. Mineralizing Toothpaste

A mineralizing toothpaste helps naturally restore your teeth’s structure. You can typically find mineralizing toothpastes at health food stores, or try making your own using 4 tablespoons of coconut oil, 2 tablespoons of baking soda, 1 tablespoon of xylitol, 20 drops of peppermint essential oil, and 20 drops of trace minerals.

4. Oil Pulling

Oil pulling is another effective remedy for cavities. Simply swish a tablespoon of oil around your mouth for 20 minutes every day to draw the bacteria out of your mouth hand teeth and naturally restore oral health. Read more about Oil Pulling here.

Continue reading below for more natural cure reviews from our readers. Please let us know what you've tried!

Black Walnut Tooth Powder  

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Posted by Mama To Many (Tennessee, Usa) on 07/24/2015
5 out of 5 stars

My husband had a molar that was bothering him. It as not at the gum line and was bothered by hot and cold and flossing. From past experience, he knew it was a cavity. I mixed him up a batch of Black Walnut Tooth Powder. He used this twice a day instead of toothpaste. Now, about six months later, he realizes that it doesn't bother him at all! It was helpful right away but it took a while for a complete cure. When we used Black Walnut tincture for a cavity on a four year old, it healed up in weeks not months. But kids do tend to heal faster.

Tooth Powder Recipe:

  • 1 Tablespoon Black Walnut Powder
  • 1 Tablespoon Baking Soda
  • 1 Tablespoon Diatomaceous Earth
  • 10 drops essential oil (I used orange for him as he does not like peppermint)
  • 4 drops Stevia Extract (optional, but helpful)

This could be made without the Diatomaceous Earth. Just use 1 1/2 Tablespoons each of baking soda and black walnut powder. It will be saltier this way, though. Another option is to substitute Bentonite Clay for the Diatomaceous Earth. I am not settled in my mind if this would be okay if you already have fillings in your mouth because of the Bentonite's effect on mercury.

~Mama to Many~

Replied by Pamela
Las Vegas, Nevada

Looking for solid info about curing a cavity on a 4 year old with black walnut tincture

Replied by Mama To Many

Dear Pamela,

I used black walnut tincture when my son had a cavity. He was 4. I put one dropperful of black walnut tincture into a cup with about an ounce of water in it. I had him swish this for 20 seconds and then swallow. I did this each night for a month. (I may have also done it in the morning but that was 7 years ago, so I don't recall.)

That is all I did and the cavity did heal. Herbpharm is a reputable source for black walnut tincture.

~Mama to Many~

Replied by Natural Girl

Thank you for your post. Can coconut oil be added to this solution?

Replied by Marsh57

Hi Mama To Many and others who have any suggestions. Our 2 year old grandson has 4 cavities and will eat only carbs. We've tried everything (sneaking bits of chicken, fish, meat, veggies) into dishes. It seems the textures upset him and he'll cry - really cry as if his feelings were terribly hurt. Last summer he didn't like to walk on grass, would overreact. This summer we noticed grass is ok, thank God. His speech is also delayed although he's making more sounds, getting some words out. A speech therapist just began coming in 2x a month and he's been tested. They think he had bad ear infections that has slowed his speech. Keeping fingers crossed. Any suggestions on how to help getting proteins and veggies into his diet? We're making homemade tooth paste and a salve with coconut oil and clove, sneaking it on to his teeth during naps and after he falls asleep at night. Thanks and blessings.

Replied by Mama To Many

Dear Marsh57,

Have you tried smoothies? The texture is like milkshakes and it is easy to get all sorts of things in. But start simple to make sure it is palatable and then you can venture out.

We use one or more of the following:

  • frozen blueberries
  • frozen pineapple
  • frozen banana

Choose a milk:

  • whole milk
  • almond milk
  • coconut milk

We sweeten with honey, blackstrap or raw sugar.

I have put canned beets in my smoothie - it makes it pink and quite pretty!
Some will put spinach in, but don't start with a green smoothie, I think.

We will add a raw egg to ours, but we have access to our own free range eggs. This is a great way to get in protein.

Cottage cheese is another thing to add with plenty of protein. My boys love to add peanut butter to theirs, another great protein source.

I hope this will be helpful and that others will have some ideas for you as well.

~Mama to Many~

Replied by Marsh57

Thank you Mama To Many and many blessings to you.

Replied by Marsh57

Dear Moma, Today while watching our 2 yr old grandson we started brushing his teeth, he jerked he began crying. I lifted his upper lip and a blood blister about the size of a pencil eraser was on his gum above his front tooth. My heart just sank ~ another dilemma with this little boy :-( Within the hour it spread wider and became purplish. He has a dental appt for root canals (the 4 cavities I wrote about above because he's holding his jaw and crying several times a day.) Thoughts??? Thank you in advance.

Replied by Mama To Many

Dear Marsh,

Oh, I am so sorry to hear about that.

If he is awaiting root canals, I am assuming this is an abscess?

How soon will he see the dentist? If it isn't very soon, perhaps the dentist would see him sooner?

For some temporary pain relief and possibly to help draw out infection a tea bag could be held between the lip and gum.

But if there is an abscess and he is in pain I would try and get him seen by a pediatrician as soon as possible if the dentist cannot see him soon.

If you notice it getting worse instead of better or if he runs a fever, I would go to the ER or an urgent care type clinic. I don't mean to be dramatic, but there are definitely times I would use an antibiotic, especially for a little one.

Let me know how he is doing.

~Mama to Many~

Replied by Charity
Faithville, Usa

He's two, his diet is acidic and need to alkaline rinse his mouth at bedtime.

Replied by Mmsg
Somewhere, Europe

Marsh, I'm not Moma but maybe check what this child is eating. Too much sugar/junk might be the cause.

Replied by Charity
Faithville, Usa

in the time: before he gets to see a doctor you can empty a tea bag and put some activated charcoal in it ( pinch 1/16 tsp. ) with some peppermint oil if you have it ( I would drop the oil on a plate and then with your finger put some, (very little) of the oil on the teabag), have him keep it in his mouth on the site while you read a book to distract him....or use a toy so he is not focused on removing it. It will draw out some of the toxins . Ginger in his food will help...even some candied ginger(the size of his pinky fingernail)...very tiny piece, it can sting on open sores, but kills all kinds of bacteria, fungus, microbes, germs, virus. Coconut oil used to make him some popcorn with seasalt on it will help alot. vinegar and sea salt potato chips if he will eat them

A childs dose of alpha lipoic acid, don't know what that is but it kills nerve pain. Childrens b vitamins help with raw nerves and stress. As a last resort baby orajel to stop the pain

a mix of peppermint oil(drop), coconut oil(TBSP) and baking soda(TBSP) at night to coat those teeth while he sleeps would do a world of good for the pain, just use a very fine coating on his gums and teeth, safe to swallow

Replied by Rsw


In addition to the other suggestions given, I might add that perhaps a second opinion before proceeding with four root canals on a two year old would be a good idea. I can't imagine that another, less traumatizing, route would not be available. Poor little guy! I am so sorry he is suffering like this. Maybe Mama's suggestion for antibiotics could be tried first, and a pediatrician may have a salve for his gums, also. I hope he feels better soon.

Replied by Kt

What a good idea. Thank you...and it is really a joy to see you!!

KT <><

Replied by Carolyn

Hi, just wondered how your grandson was doing. I have used a solution of powdered vitamin C and warm water to rinse my mouth when I've had tooth pain. Hope your grandson is doing well. I would hate to see someone so young go through having root canals.


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Posted by Njoy (Canada) on 08/19/2014
5 out of 5 stars

I have been using iodine to cure cavities for about 40 years. It works great. Organic iodine from the health food store is probably best but I've mostly used the ordinary stuff from the drugstore.

If you have active cavities and perhaps toothache as well, put 10 or 12 drops in a small amount of warm water (about a mouthful) and swish it around your mouth for 30 seconds or so. Then spit it out. You will notice most of the colour is gone. Do this many times throughout the day.

Soon your toothache will stop and you'll see recalcification on your teeth. Don't stop using the iodine but you will find you can cut back a lot. I usually now use a couple of drops twice a week.

If you have big cavities you should get them fixed when you can afford it. Otherwise, if you forget your iodine for a couple of weeks the cavities will start to bother you again.

I had a dentist remark that I had "many small cavities that have healed over" which surprised him.

I did this iodine treatment for about 25 years, then stopped for years to see what would happen (no problems) and have now started again once a week, two drops.

Don't swallow the iodine and water mixture! Spit it out! Don't stop using it unless you get large cavities fixed!

The only new cavity I've had in more than 40 years is one that was deep inside a gum. I guess the iodine couldn't reach it.

Replied by Om
Hope Bc Canada

Njoy (Canada) --- thank you so much for your post. I will do this definitely. Just have to find iodine. Namaste, Om

Replied by Bess
Calgary, Alberta, Canada

Hi Om - There are some suggestions under the heading "Where to Buy Lugol's in Canada" (most pharmacies can order it for you). Cheers, Bess

Replied by Bess
Calgary, Alberta, Canada

Thanks, Njoy, for the info about iodine and cavities. My husband and I tried it last night and hope to make it a regular habit. I used about 5 drops of 5% Lugol's in 1 ounce of water. It will be interesting to see what happens. Wouldn't it be great (and cheaper) not having to visit the dentist so often ... Cheers, Bess

Replied by Ranita

Hi Njoy, thanks for the tips. I live in Malaysia and I have the black marks appearing on my teeth, so was wondering what brand of Iodine drops you use. I've been doing oil-pulling for close to 2 years now, and I don't see much improvement, so it could be the brand of coconut oil that I'm using needs to be higher quality.

I saw that some of you have recommended Lugol's 5% solution, but it's looking quite difficult to get here, and shipping is costly too. Would Life Flo Health, Liquid Iodine Plus also work? Looking forward to hearing from you! Thanks.

Replied by Maryland

I am going to try this.... I have a hole in my tooth and now my teeth is getting grey and my breath is starting to smell.

Replied by Nepheryte
0 out of 5 stars

Hi guys, I tried using iodine (J Crow's Lugol Iodine 5%) to heal my cavities, and I got the worst burning sensation on my tongue. I used 10 drops and swished it in my mouth for about a minute, and by the time I spit it out, my tongue could no longer taste anything. I also had terrible gas, and had to consume large quantities of aloe vera concentrate to soothe my stomach. It's been three days now and my tongue is slowly healing.

On the other hand, I did see a lot of the black stuff from my cavities come out (not everything as I had to spit it out). I don't know why but even taking one drop causes gas in my stomach, so to those using this method, just be cautious please. It does help, but I really wish that Njoy had stated specifically what brand of iodine she was using, and how many percent it was. Using 10 drops of the 5% was hell!

Replied by Nepheryte

Writing again as an update, I decided to put the Lugol's 5% iodine on my brush and brush making as little contact with the tongue and walls of my mouth, for about 15-30 seconds. This has helped slightly more in ridding my mouth of the black stuff from my cavities. Not completely healed. I still can't do it every day as suggested as there is a burning sensation. 5 drops a day should be fine, but the 10 being suggested still gives the burning sensation and a very unpleasant taste in my mouth, so hope that those using this method will benefit.

Replied by Sheril

I've been using Iodine for about a year both orally mixed in water and by painting. How we started was by using 2% Lugol's Iodine and then moving up to 5%. As noted by others it does have side effects when first using mainly because Iodine kinda detoxifies your body. I would recommend to start with 3-5 drops of 2% and then increasing the amount slowly or start with 3 drops of 5%. Hope this helps out, cheers :)

Replied by Steve
5 out of 5 stars

I had a similar experience using nascent iodine on some tooth pain I had last night. I put a drop on the few lower front teeth that felt like they were hurting and also swished some colloidal silver. Within 30min pain was gone and hasn't come back.

Replied by Zark
Emerald City, The Land Of Oz

Nepheryte, Iodine can temporarily disrupt your gut flora if you swallow it. So take extra care not to swallow any. If you continue to have trouble then do the iodine treatment on an empty tummy, ie. wait at least two hours after a big meal - otherwise it would mix with the food in your stomach and disrupt its fermentation. Are you diluting it enough?

Replied by Nepheryte

Hey. No, I didn't know that I had to dilute it. How exactly do I use this for cavities? I actually stopped using it because it was so unpleasant.

Replied by Eliza G.
San Francisco, California

Oh my God! Thank you so much for sharing this remedy and your experience. I am going to try it and hopefully this is going to work for me as well as it has for you for 40+ years. I've been doing coconut oil pulling, but it is not having an effect on my cavities although it is making my gums very healthy, so I love oil pulling, too.

Replied by Eliza
San Francisco, California

You mention that if you have big cavities, do not stop using the solution. My question is does this solution and frequent use every day reverse and heal big cavities? Are you saying this only for those with toothaches with large cavities? Thanks for your prompt answers.

Replied by Stephen Wolner Dds
New York, Ny

Every dentist should disinfect each patient's mouth before a cleaning.

The best and most effective way to do this is to swab all teeth and gums with 2% tincture of iodine and leave in place for 30 seconds. This form of iodine will kill S.Mutans (the bacteria responsible for decay) and in studies by P. Caulfield it takes about 4-6 months for recolonization to occur. This research followed children for several years and in double blind studies, it reduced the formation of decay by about 80%. This technique should be just as effective in adults.

Replied by Angela

When you wrote about swabbing Iodine on the teeth, what do you use?

I tried it with a cotton bud and the Iodine seemed to stay in the bud and not transfer to the teeth/gum line.

I also have a 2mm black cavity on the side of my rear molar which is only visible with a mirror, I would like to place a drop of 3% Lugol's Iodine in the cavity but it is very difficult to do because of the position of the cavity/caries.

Oil Pulling  

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Posted by Zark (AU) on 12/07/2014
5 out of 5 stars

This works nicely! I swished a tablespoon of coconut oil around my mouth for ten minutes and now two cavities in a molar are now cleaned out. There is none of the black gunk left in the molar. Now that it is clean my tooth can heal hopefully.

I had previously brushed and brushed repeatedly and that black bacterial gunk just wouldn't budge.

Replied by Kayla Robinson

What coconut oil brand did you use? And how long did you do this oil pulling for (week or months?)

Replied by Myway

Kayla, you are in Indiana - find a Trader Joe's, they have their own brand of virgin, organic, unrefined coconut oil that is perfect for oil pulling, cooking, body application, etc. I oil pull daily to keep my gums healthy. About 20 minutes every morning. If I didn't, lodged food particles inflame my gums over time. Oil pulling is a lifetime commitment to my health daily.

Good Luck,

MyWay, :D

Replied by Let It Go
Los Angeles, California
9 posts

You can also add turmeric and a bit of baking soda into coconut oil, that helps as well.

Ph Balance, No Sweets, Rinse Mouth  

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Posted by william (Greenville, South Carolina) on 07/30/2007
5 out of 5 stars

My father practiced dentistry for well over 50 years in New Orleans, La. He took great delight in encouraging nutritional dentistry. The patients saliva sample was sent to a State of La. lab, which then forwarded their PH reading back to him. Today, PH strips do a faster job, and probably just as good.

My dad recommended elimination of all sweets, except for fruit and vegetables; plus rinsing the mouth after eating anything.

Replied by Joy
Battleground, Wash

Love your teeth with coconut oil and baking soda, protect your dental health by using supplements of vitamins and minerals, our food and water systems lack what we need to be in optimum health, even if you are a vegetarian or vegan or eat all healthy organic food...