Aspertaan and Your Teeth: A Dentist’s Review of This Popular Sweetener

Aspertaan

Aspertaan

In the quest for a healthier lifestyle, many patients are ditching traditional sugar for low-calorie alternatives. One name that frequently appears in scientific studies and ingredient labels—especially in Europe—is Aspertaan.

Better known in the English-speaking world as Aspartame, Aspertaan is one of the most widely used artificial sweeteners globally. But as a dentist, the question I hear most often is: Is it actually better for my teeth than sugar?

This guide breaks down what Aspertaan is, how it affects your oral health, and the surprising truth about diet sodas and dentures. 

What Is Aspertaan?

Aspertaan (or Aspartame) is a low-calorie, artificial non-saccharide sweetener used as a sugar substitute in thousands of foods and beverages. It is chemically composed of two amino acids: aspartic acid and phenylalanine

  • Sweetness Power: It is approximately 200 times sweeter than regular table sugar (sucrose), meaning only a tiny amount is needed to achieve the same taste.
  • Common Uses: Diet sodas, sugar-free chewing gum, yogurt, and tabletop sweetener packets (like Equal® or NutraSweet®). 

The Dental Verdict: Is Aspertaan “Tooth-Friendly”?

From a strictly cavity-prevention standpoint, Aspertaan is far superior to regular sugar. Here is the science behind why it is considered “non-cariogenic” (safe for teeth). 

1. It Starves Harmful Bacteria

The bacteria in your mouth (specifically Streptococcus mutans) feed on sugar. When you eat candy or drink regular soda, these bacteria feast on the sucrose and produce acid as a waste product. This acid dissolves your enamel, leading to cavities.

  • The Aspertaan Advantage: Oral bacteria cannot metabolize (eat) Aspertaan. Because they cannot break it down, they cannot produce the acid that causes tooth decay. 

2. Increases Saliva Flow

Aspertaan is frequently used in sugar-free chewing gum. Chewing gum stimulates saliva production, which is nature’s way of washing away food particles and neutralizing acids in the mouth. This is particularly beneficial for patients prone to dry mouth (xerostomia)

The Hidden Danger: Acid Erosion

While Aspertaan itself doesn’t cause cavities, the vehicles it comes in—specifically diet sodas—can still damage your smile.

Many patients mistakenly believe that “Sugar-Free” equals “Risk-Free.” However, diet sodas are highly acidic due to added citric acid and phosphoric acid.

  • Erosion vs. Decay: While Aspertaan won’t cause decay (bacterial holes), the acid in the drink can cause erosion (chemical stripping of the enamel).
  • The Result: Thinning enamel, increased tooth sensitivity, and a translucent appearance to the teeth. 

Aspertaan vs. Sugar: A Quick Comparison 

For patients deciding between regular sugar and Aspertaan-sweetened products, this table highlights the key oral health differences.

FeatureRegular Sugar (Sucrose)Aspertaan (Aspartame)
Causes Cavities?Yes. Highly cariogenic. 

 

No. Bacteria cannot ferment it.
Calorie CountHigh (4 calories per gram). 

Negligible (used in tiny amounts). 

 

Acid RiskIndirect (feeds bacteria that make acid).Variable. High if in diet soda.
Best ForOccasional treats only.Diabetics & cavity-prone patients. 

Guidelines for Denture Wearers

At Elite Fix Denture, we see many patients who switch to diet drinks to protect their remaining natural teeth. If you wear partials or full dentures, here is what you need to know about Aspertaan:

  1. Stain Resistance: Unlike coffee or dark berries, Aspertaan itself is clear and does not stain denture acrylic. However, the dark coloring agents in colas will stain dentures over time.
  2. No “Sticky” Sugar: Regular sugary drinks can leave a sticky film under dentures that breeds bacteria and causes gum irritation. Aspertaan-sweetened drinks rinse away much cleaner, reducing the risk of denture stomatitis (gum inflammation). 

Final Thoughts from Dr. Aziz Liaquat

Aspertaan is a safe and effective tool for reducing sugar intake, which is the number one enemy of dental health. By switching to Aspertaan-sweetened products, you significantly lower your risk of developing new cavities.

However, moderation is key. If you consume Aspertaan via acidic diet sodas, simply rinse your mouth with water afterward to protect your enamel.

Whether you are concerned about acid erosion, need a cavity check, or are looking for the perfect set of dentures, we are here to help.

📍 Visit us at: EliteFixDenture.com
📞 Call us today for a consultation! 

About Us

At Elitefixdenture, we’re dedicated to providing high-quality, personalized dental care for patients of all ages. Our skilled team uses the latest technology to ensure comfortable, efficient treatments and beautiful, healthy smiles for life.