Tooth Enamel: The Strongest Substance in Your Body (And How to Keep It That Way)
When people think about healthy teeth, they usually think about one thing: white teeth. But here's something that surprises almost everyone... healthy enamel isn't actually white.
Your tooth enamel is almost completely transparent. What makes healthy teeth appear bright and white has much more to do with minerals, light, and the remarkable structure of enamel than with color itself.
Understanding enamel will change the way you think about oral health, and how you treat your teeth. Instead of asking, "How do I whiten my teeth?" you'll start asking a much better question: "How do I make my enamel healthier?"
What Is Tooth Enamel?
Enamel is the outer protective layer that covers every tooth. It is the hardest substance in the human body. Even harder than bone.
By weight, enamel is approximately:
- 96% minerals
- 3% water
- 1% proteins and other organic material
Those minerals are arranged into millions of tiny crystals called hydroxyapatite (see note below on hydroxyapatite products!). Under a microscope, tooth enamel looks more like an incredibly organized crystal than a solid piece of rock.
This crystalline structure is what gives enamel its incredible strength.
On the Mohs hardness scale (the 1-10 scale scientists use to compare how resistant materials are to scratching) tooth enamel scores around 5, making it harder than many common metals (including many kinds of steel).
Yet despite its hardness, enamel has one major weakness. Once enough minerals are lost, the tooth becomes susceptible to decay, wear, chipping, and worse. Although enamel doesn't contain living cells like skin, it is far from 'dead.' Enamel can remineralize. Every day, minerals are either leaving your teeth or returning to them. The goal of my system and techniques isn't to artificially rebuild enamel with a product, it's to create the conditions that allow your own saliva to naturally replace lost minerals. That's why my Complete Mouth Care System focuses on supporting your body's own remarkable ability to repair itself.
Enamel Isn't White
This surprises many people. Enamel is actually translucent, meaning light can pass through it. The bright, white, healthy appearance of teeth comes from the way light travels through well-mineralized enamel and reflects back toward your eyes. When enamel is dense and packed with minerals, light scatters beautifully, giving teeth a naturally bright, white appearance.
As enamel becomes less mineralized, light behaves differently. Instead of reflecting evenly, more light passes through the enamel and the darker dentin underneath becomes more visible. In some cases, teeth may begin to look yellower, grayer, or duller.
This is one reason I focus on building healthier enamel rather than chasing cosmetic whitening. Healthy teeth naturally look brighter and whiter.
Your Teeth Are Constantly Changing
One of the biggest myths in dentistry is that enamel is permanent. It isn't. Every day your teeth go through two opposite processes:
- Demineralization – minerals leave the enamel after acids attack the tooth.
- Remineralization – saliva replaces those lost minerals.
Healthy mouths spend more time remineralizing than demineralizing. Unhealthy mouths stay stuck in the opposite cycle.
My Complete Mouth Care System is designed to help your mouth spend far more time rebuilding than breaking down.
How to Build Stronger Enamel
Healthy enamel doesn't come from one magic toothpaste. It comes from creating the right environment in your mouth.
Feed Your Saliva
Saliva is your body's natural repair system. It carries calcium and phosphate back to your enamel where they can become part of the crystal structure again.
That's why I encourage frequent use of xylitol throughout the day. Xylitol stimulates saliva, supports healthier oral bacteria, and helps create the conditions where remineralization can happen naturally.
Give Your Mouth Time to Rest
Your mouth cannot repair itself if it is constantly chewing and swishing food and drink. Every snack, sip of juice, or drink (even plain water!) dilutes your saliva often making it too thin so it can't carry enough minerals back into your teeth.
I teach "mouth resting" because it gives saliva uninterrupted time to repair enamel. Think of it as giving your teeth time to heal.
Learn more about mouth resting here.
Nourish Your Whole Body
Your mouth is part of your body. A nutrient-rich diet supports healthy saliva, healthy tissues, and healthy enamel.
Good sleep, hydration, and overall health all influence your ability to maintain strong teeth. Oral health isn't separate from general health, it's entirely connected.
Why Healthy Teeth Don't Stay Stained
People often tell me: "My teeth stain every time I drink coffee or red wine." Here's what may be happening...
When enamel loses minerals, it becomes rougher and more porous. Pigments from coffee, tea, red wine, berries, curry, tobacco, and other foods can settle into those microscopic irregularities more easily.
Healthy enamel is smoother. Healthy saliva continually bathes the teeth. A healthy biofilm also forms a protective layer over enamel, making it harder for stains to stick.
Does this mean healthy teeth never stain? Of course not.
Some foods contain incredibly strong pigments. But on healthy teeth, many surface stains are much easier to remove through normal teeth cleaning and the natural cleansing of saliva.
What If My Teeth Stain After Starting Your Program?
This is something I hear from some patients, and it often worries them unnecessarily. Sometimes people notice new brown staining after beginning my Complete Mouth Care System.
In many cases, this isn't damage to the tooth at all. Instead, you're seeing old plaque that has died and is now stuck on your teeth. It needs to be removed mechanically.
My recommendation is this:
- Place a small amount of xylitol directly on your toothpaste during your teeth cleaning morning and night
- Brush with the xylitol on top of your toothpaste for about four (4) weeks
- Continue following the Complete Mouth Care System consistently
Many people find the staining gradually disappears.
If it doesn't go away, I would recommend scheduling a professional cleaning with your dental hygienist. They can usually remove these surface deposits quickly without damaging your enamel.
You can watch a YouTube video on teeth staining here.
Healthy Teeth Are Built, Not Bleached
The goal isn't simply whiter teeth. The goal is healthier enamel.
Healthy enamel is denser.
Healthier enamel reflects light more beautifully.
Healthier enamel resists daily acid attacks from eating and drinking.
Healthier enamel stains less easily.
Healthier enamel helps protect your teeth for decades to come.
Instead of asking, "How can I make my teeth whiter?" Ask a different question: "How can I make my enamel healthier?"
When you build a healthy mouth, a brighter, whiter smile often follows naturally.
