Tooth Decay: 12 Tips That Help
Updated Jun. 04th, 2026 | Read Time: 9 Minutes | What You Will Learn:
- Top 12 Oral Health Tips
- Mouth
- Teeth
- Thinning Enamel
- Gums
- Saliva
- Cavities and Bacteria
- Mercury Amalgams
- Maintaining pH
- Flossing
- Brushing Your Teeth
- Tongue Cleaning and Mouthwash
- Diet and Lifestyle
- Nutritional Information
- Reader Comments (4)
While we have all heard our dentists lecture us about the importance of proper oral healthcare, many of us often don’t think much more about the subject. Even fewer of us actually consider our oral health to be integral to the health of our entire body. The truth is: our oral health affects our digestive health and the immune function throughout our bodies. Our mouth is the entrance to our entire digestive tract, and that’s where over 70% of our immune system lives. From this, we can easily see why these tips for our oral health are essential to our overall wellbeing. Not to mention how having an attractive smile can boost your mental health and wellbeing and give you a sense of confidence.
How Can I Boost My Oral Health?
1. Mouth
Each of our mouths is like a miniature living ecosystem. Our gums, tongue, mouth walls and cheeks are all living tissue, and believe it or not – so are your teeth! Although we are all raised thinking of our teeth like inanimate bone, they are actually complex living tissue. Keeping the mouth environment healthy and balanced is the most important thing that you can do for your oral health.
2. Teeth
Each tooth contains several complex and dynamic layers. The enamel forms the outer layer above the gum line. Hydroxyapatite crystals make up enamel, much like bones. Cementum forms the outer root layer below the gum line. Mineralized collagen tissue makes up cementum. The pulp forms the innermost tooth layer. Blood vessels, living cells, and nerves make up the pulp. Between the hard shell layers and the inner pulp lies the dentin, which is a dense network of mineralized tubules that allow for nutrient transport from the pulp to the enamel. These are the tubules that can transmit temperature and chemical changes in the mouth to the nerves in the pulp when they are exposed in areas where the enamel is worn too thin, resulting in tooth sensitivity.
3. Thinning Enamel
The enamel layer turns over throughout the day and exchanges minerals with our saliva, depending on the surrounding pH. In acidic saliva, the enamel loses minerals and weakens, while basic saliva can allow the repair of the enamel. When the enamel becomes thinned, it can allow for transmission of temperature and chemicals through the dentin to the nerves of the pulp, causing sensitive teeth. As the enamel continues to erode away, it allows for erosion of the dentin, which then requires dental repair like a filling. Once the enamel is worn away, it can no longer be repaired. Fillings are meant to replace the protective layer over the dentin to prevent erosion into the inner tooth. If the erosion continues into the pulp layer, it can result in an abscess or infection that can require a root canal. In a root canal, the dentist will drill out the pulp, killing the tooth and filling it with inanimate amalgam material.
4. Gums
The roots of our teeth are set into our jawbones and held in place by strong connective fibrous ligaments. These are all surrounded by soft tissue, which helps to protect the bones and hold the teeth in place. All of this tissue is referred to as our gums. This is the tissue that allows our immune system to protect and defend our teeth. Much like our other body tissues, our gums require certain nutrients to stay healthy.
Between the gums and the teeth, there are small gaps where food and bacteria can lodge and cause irritation, which is why frequent flossing is so important to help keep these areas clear.
Bacteria growth irritates the gums and causes them to pull away from the teeth. This process enlarges pockets and creates receding gums. This damage can lead to gingivitis and periodontitis. Researchers have linked these conditions to:
- Premature Births
- IBS
- Cardiovascular Issues
The gums are quite thin, and any breaks can allow for penetration of bacteria and chemicals directly into the bloodstream. Thus, it is essential to maintain gum health to help protect the body against toxicity and infection.
5. Saliva
Although we often take our spit for granted, it plays a huge role in our health! Saliva contains the first enzymes of digestion, allowing us to cleave certain starch bonds and break them down into simple sugars. It also contains antibodies that help to protect us against infections that enter through the mouth. The pH of our saliva has a huge effect on our health as well. Our saliva contains minerals that can help to repair our enamel. When our saliva is acidic, it actually draws minerals out of our enamel, which weakens the structure of our teeth. When our saliva is neutral (pH 7), it can help to reverse this process and repair damaged enamel. Yes, you heard that correctly: changing your pH can help to protect your teeth, and even reverse early cavities! Staying well hydrated during the day and avoiding mouth breathing (see our Snoring article) at night can help to maintain sufficient saliva in the mouth to help protect the teeth.
6. Cavities and Bacteria
Bacteria that can colonize the human body enjoy warm, moist environments. This makes your mouth an ideal place to be! Given the right environment, these bacteria can create a biofilm that coats the teeth and makes them resistant to removal. When given sugar, bacteria quickly use it for growth and create acidic waste products. This waste can create an acidic environment around your tooth that results in enamel loss. As the bacteria die off and reproduce, they create tartar along the teeth, which can become mineralized by saliva and create calculus. This calculus prevents the saliva from properly performing its protective function. Removing food debris, cleaning the teeth of tartar before it is mineralized, and changing the diet can quickly reduce the ability of bacteria to grow in your mouth.
7. Mercury Amalgams
If you have silver coloured fillings in your mouth, chances are that they contain mercury. Sadly, many dentists are still using mercury amalgams as a cheap filling alternative. In Sweden, these were outlawed in 2008, but North America hasn’t caught up yet. Research has shown that these fillings off-gas mercury as we chew, particularly when chewing gum. Whether the amount released is detrimental is a point of contention in the dental community. No matter what, mercury is a known toxin that can disrupt nervous function and eventually cause brain damage. Exposures accumulate in our bodies over time, making the effects cumulative. Because of this, many holistic dentists will offer safe mercury amalgam removal and replacement with benign white dental amalgams. If you choose to do this, be sure to research the process they are using to make sure that you will not be exposed to more mercury with the removal than by just leaving them in your mouth.
8. Maintaining pH
One of the most important factors influencing oral health is the pH of our mouth environment. Saliva pH is directly influenced by acid-base balance in the body. Eating a diet rich in fruits and vegetables, and avoiding excess animal products, is the fastest way to change your body’s chemistry. Rinsing the mouth with salt water can also help to quickly return the pH to more balanced levels.
9. Flossing
I put this paragraph before brushing because most of us are much better at being disciplined with brushing than we are with flossing. I can’t count the number of sheepish admissions I’ve made over the years at my dentist’s office, followed by a week or two of guilt flossing that eventually fades out. After researching more about this, my habits changed; Flossing is as important, if not more important, than brushing. Getting those areas between your teeth and into the pockets in the gums helps to prevent the accumulation of food debris and bacteria that cause gum disease and increase your risk for health concerns. Getting into the habit of flossing after every meal, or even just daily, can significantly reduce your risk of gum disease and help to protect your overall health. Don’t worry if your gums bleed the first few times; this is actually a sign that your gums are irritated and you need to floss more often. After 2-3 days, the bleeding will stop.
10. Brushing Your Teeth
Most people learn early how important regular tooth brushing is. Brushing removes food debris and reduces excess mouth bacteria. Many commercial toothpastes contain chemicals that may affect health. Brushing after meals can help protect oral health. Wait before brushing after sugary or acidic meals. Saliva needs time to clear sugars and balance pH levels. This process helps enamel remineralize before brushing. Be sure to use a soft toothbrush and gently brush each tooth in a sweeping motion starting at the gums and brushing away (downwards on the upper teeth and upwards on the lower teeth).
11. Tongue Cleaning and Mouthwash
One of the major reservoirs of bacteria and food debris is our tongue. Being sure to clean the tongue properly either with your toothbrush or with a tongue scraper can significantly reduce the buildup of bacteria in your mouth. It is also a great way to keep your breath fresh and reduce halitosis. Using alcohol based mouth washes can actually damage the gums and contribute to recession. Instead, try rinsing with saltwater to neutralize pH and help kill bacteria. Goldenseal, sage and thyme can be made into teas and used as an antibacterial mouthwash.
12. Diet and Lifestyle
It won’t come as a shock to any of you that your diet affects the health of your entire body, and this includes your oral health. Eating processed foods high in refined sugars makes for quick and efficient food for the bacteria in your mouth. It also does not provide your body with sufficient nutrients to maintain the health of your mouth and teeth. Sugar-laden and acidic foods can contribute to enamel loss, as can chewable vitamin C tablets. Eating a diet rich in fruits and vegetables can provide these nutrients and help to keep the body alkaline, which in turn keeps the saliva at a healthy pH. Raw crunchy foods like apples and carrots can naturally clean the teeth as you chew. Drinking plenty of water helps the body to produce sufficient saliva to coat and protect the teeth. Stress and hormonal imbalances both contribute to poor oral health as well. Living a healthy lifestyle and taking care of your entire body is a great way to improve your oral health. Having a radiant smile will go very well with your glowing skin and healthy hair and nails, among other wonderful side effects!




I know that oral health is so important for overall general health so it is great to remember to keep good care of your mouth. Sometimes it can feel like a chore to have to brush your teeth and floss your teeth especially when you are tired. I know that flossing my teeth is my least favourite part and a step I often skip but want to work on improving. A good tip for that is putting the floss directly on the counter where you can see it so it's convenient to grab and start flossing and the more you do it the more it becomes a habit and part of your natural routine! Let's go for oral health! :)
Hello, Oh,
Setting yourself up for successful health habits is key to implementing them as part of your routine. Keeping things that you often forget to use on the counter is great, as is getting the tools that can help you. Another important part to oral health is ensuring your tongue is clean from bacteria. Check out these tongue cleaners that make that task easier:
https://www.nationalnutrition.ca/dr-tung-s-tongue-cleaner-1-piece.html
Stay healthy & well!
...but I sure learned from your article, NN! I did not, for example, know that vitamin E could promote dental health via its role in promoting the health of mucus membranes. I'll be adding more nuts to my diet to bump that up! I also did not know that CoQ10 could promote oral health, too. My only suggestion to make this great article even better is to after the vitamins/minerals that can be attained through dietary sources, to include top food sources of these vitamins and minerals to make it even quicker for readers to get a grasp of how to make sure they are in the green light for each!
Hello Rachel,
Thank you for your comment. We're glad you could learn new ways to prevent tooth decay naturally.
We think you’ll also enjoy this article: https://www.nationalnutrition.ca/articles/health-concerns/dental-health/
Have a healthy day!