Is Your Smile Under Attack? What You Should Know About Erosive Dental Wear

You know how everyone worries about cavities? Fair enough; they’ve earned their bad reputation. But there’s another sneaky threat to your teeth that doesn’t get nearly enough attention: erosion. No, not the kind that wears down cliffs. We’re talking about dental erosion, and it’s quietly affecting millions of smiles, maybe even yours.

Here’s the thing: erosion doesn’t come with alarm bells. No pain. No obvious holes. Sometimes? Your teeth just start looking a little… off. Smoother. Thinner. More Yellow/Darker. More sensitive. And by the time you notice, the damage might already be permanent.

 

What Is Dental Erosion (and How’s It Different From Decay)?

Dental erosion happens when acid softens and dissolves your enamel which is the hard outer shell of your teeth. Unlike cavities, it’s not caused by bacteria. It’s just straight-up chemical wear, from what you eat, drink, or even reflux from inside.

Imagine decay as termites hollowing out wood. Erosion? It’s like water slowly wearing down rock – gradually, silently, but undeniably. And here’s the kicker: enamel doesn’t grow back. Once it’s gone, that tooth is never the same.

 

More Common (and Serious) Than Most People Realize

Studies show that up to 80% of adults in the U.S. have some form of erosive wear, even without cavities. Globally, about 30–50% of children and teens are affected.

People with eating disorders (especially bulimia and anorexia) are in much deeper water. A recent systematic review found:
– 54.4% of people with bulimia nervosa showed erosion
– 26.7% with anorexia nervosa showed erosion
– 42.1% across all eating disorders had erosive lesions

– Citrus fruits and juices (lemons, limes, oranges, grapefruits)
– Sparkling waters (especially fruit-flavored)
– Soft drinks and energy drinks
– Sports drinks (Gatorade®, Powerade®)
– Vitamin C supplements and fizzy tabs
– Sour candies and gummies
– Yogurts and flavored kefir
– Fruit-flavored protein powders
– Store-bought salad dressings and sauces
– Preserved fruits, jams, and jellies
– Even some organic or natural food products – always check labels!

Citric acid is one of the most common food acids used to enhance flavor, preserve freshness, and adjust pH, but it’s also one of the most damaging to enamel. Why? Because it binds calcium in your saliva, making it harder for your mouth to repair itself after acid exposure.

Even small, frequent exposures to citric acid can cause enamel softening, especially if you sip or snack over long periods. And unlike sugar, which bacteria must convert into acid, citric acid is already acidic on contact – no waiting required.

The Citric Acid Culprit: Why It’s Everywhere and Still So Risky.  What’s Causing It? (Spoiler: It’s Not Always Soda)

Yes, soda is acidic. But so are many everyday foods and drinks. Here’s a pH reality check (remember, under 5.5 is risky):

– Still water: 7.0 – Safe

– Milk: 6.5–6.8 – Safe

– Cheese: 5.1–5.9 – Remineralizing

– Black coffee: 5.0 – Low risk occasionally

– Sparkling water (unflavoured): 3.0–4.0 – Acidic

– Bottled water (some brands): as low as 4.0 – Acidic (check labels!)

– Citrus juice: 2.3–3.5 – Acidic

– Vinegar-based dressings: ~3.0 – Acidic

– Kombucha: 2.5–3.2 – Acidic

– Sports drinks: 2.5–3.0 – Acidic

– Apple cider vinegar: 2.8–3.0 – Very erosive

What Erosion Looks (and Feels) Like

– Sensitivity to cold, sweet, or brushing
– Yellowing teeth
– Translucent or glassy edges
– Flattened or shortened teeth
– Tiny pits or dips on chewing surfaces

Let’s Talk Saliva: Your Natural Defense System

Saliva isn’t just there to keep your mouth moist. It’s a powerhouse when it comes to protecting your teeth. It helps neutralize acids, clear food particles, and deliver minerals like calcium and phosphate that help rebuild weakened enamel.

Proteins in saliva, like statherin and proline-rich proteins, act as buffers against pH changes and form a protective film on your teeth. When saliva flow drops like from dehydration, medications, stress, or certain health conditions your enamel becomes far more vulnerable.

Xylitol: Sugar’s Smarter Twin

Let’s talk about xylitol – not because it sounds “sciencey”, but because it actually works. Xylitol is a naturally occurring sugar alcohol found in birch trees and corn cobs. But the cool part? Bacteria in your mouth can’t ferment it, so it doesn’t fuel cavity formation the way regular sugar does.

In fact, chewing xylitol gum does a few helpful things at once:
– Increases saliva flow (especially helpful if you have dry mouth)
– Reduces harmful bacteria (it stops the production of acid by starving Streptococcus mutans)
– Helps with remineralization (by creating a better environment for calcium and phosphate uptake)

You’ll find it in sugar-free gums (like PUR®, Spry®, or Xylitol Canada® products), lozenges, and some toothpastes or mouth rinses. Even 3–5 exposures a day can help — and it’s safe for kids (and most adults, unless you overdo it… or feed it to your dog, which you definitely shouldn’t).

Remineralizing Agents: What Actually Works?

When erosion has started but hasn’t gone too far, remineralization is the name of the game. Products that contain fluoride, calcium phosphates, or nano-hydroxyapatite can help strengthen and rebuild enamel – even if they can’t replace what’s completely lost.

We often recommend:
– Clinpro 5000® – high-fluoride toothpaste with tri-calcium phosphate
– MI Paste Plus® – calcium and phosphate in a bioavailable form (great for dry mouth or ortho)
– Hydroxyapatite toothpastes like Remin® – biomimetic and great for sensitivity

We match recommendations based on your age, risk level, medical needs, and how likely you are to actually use the product — because let’s be honest, it only works if you use it.

When Dry Mouth Isn’t Just Annoying — It’s Risky

Saliva is one of your body’s greatest defenders. When it’s flowing well, it:
– Buffers acids
– Washes away food particles
– Delivers minerals for enamel repair
– Forms a protective protein coating over the tooth surface

But when saliva dries up? So does your defense system.
Dry mouth (xerostomia) can be caused by:
– Medications (antihistamines, antidepressants, blood pressure meds)
– Radiation or chemotherapy
– Autoimmune disorders like Sjögren’s
– Stress or dehydration
– Aging

We see it a lot. And it’s not just uncomfortable; it’s a huge erosion risk. If your mouth feels sticky, food tastes off, or you’re sipping water constantly, it’s worth bringing up.

We can recommend:
– Saliva substitutes or stimulants (like Biotène®, Xylimelts®, or mouth sprays)
– Nighttime gels
– Chewing sugar-free gum with xylitol
– Lifestyle changes to avoid caffeine, alcohol, and mouth breathing when possible

The Science Behind Remineralizing Products (And What’s Available in Canada)

Remineralization isn’t just about what’s in the toothpaste; it’s about how well those ingredients stay on the teeth. That’s where co-polymers come in. These molecules help bind active minerals like calcium, phosphate, and fluoride to your enamel so they can actually do their job. Think of co-polymers as the delivery truck that makes sure the good stuff gets where it needs to go – and stays there.

Here are some top remineralizing agents and delivery systems found in products available in Canada:

These products use either casein phosphopeptides, co-polymers, or gel carriers to improve how long minerals stay in contact with your teeth. That increases the chances of remineralization — especially when paired with proper timing, saliva support, and habit changes.

Oral Probiotics: Supporting the Microbiome from the Inside Out

Products like BioGaia Prodentis® contain friendly bacteria — specifically Lactobacillus reuteri strains — that help balance the oral microbiome. While they don’t rebuild enamel, they may reduce inflammation, support gum health, and help manage dry mouth. For people on medications or recovering from illness, maintaining a healthy oral environment plays a role in protecting against erosion, especially when salivary protection is compromised.

Cancer Care and Erosion Risk

People undergoing cancer treatment (especially chemotherapy or head and neck radiation) often experience severe dry mouth. Saliva is one of your mouth’s best protective tools, and when it dries up, acids hang around longer, bacteria become more damaging, and tissues are more prone to injury.

These changes can include:
– Reduced or absent saliva flow
– More acidic oral pH
– Increase in cavity-causing and erosive bacteria
– Decreased ability to remineralize enamel
– Increased oral sensitivity and tissue fragility

At To The Root DH, we create custom support plans for clients facing these challenges. Some options may include:
– Fluoride or remineralizing products
– Saliva substitutes and moisturizing gels
– Diet and hydration support to reduce acid exposure
– Gentle hygiene protocols and more frequent preventive care
– Communication with medical teams if needed

If you’re curious about erosion, and your oral health, then reach out to us for an appointment!

References

American Dental Association. (2022). Dental erosion. https://www.ada.org/resources/ada-library/oral-health-topics/dental-erosion

Lussi, A., & Carvalho, T. S. (2015). Erosive tooth wear: A multifactorial condition of growing concern and increasing knowledge. Monographs in Oral Science, 25, 1–15. https://doi.org/10.1159/000360380

Li, H., Zou, Y., Ding, G. (2012). Prevalence of dental erosion in 12-13-year-old school children in Guangzhou, Southern China. BMC Public Health, 12, 478. https://bmcpublichealth.biomedcentral.com/articles/10.1186/1471-2458-12-478

Martens, L. C., et al. (2014). Eating disorders and dental erosion: A systematic review and meta-analysis. PLoS ONE, 9(11), e111123. https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0111123

Petti, S., et al. (2023). Eating disorders and dental erosion: A systematic review. Journal of Clinical Medicine, 12(2), 2297. https://pubmed.ncbi.nlm.nih.gov/37834805/

BMC Oral Health. (2022). Awareness and knowledge of dental erosion among adults in Trinidad and Tobago. https://bmcoralhealth.biomedcentral.com/articles/10.1186/s12903-022-02065-w

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