Science · Dextranase in Toothpaste
Dextranase in Toothpaste
Dextranase targets the sticky dextran matrix that holds plaque biofilm onto the tooth surface.
Plaque biofilm is not just a loose film of bacteria — it is held together by a sticky extracellular matrix that oral bacteria build from dietary sugars, largely made of dextran (a glucose polysaccharide) and similar polymers. This matrix is what allows plaque to adhere firmly to the tooth surface and resist simple rinsing. Dextranase is an enzyme that breaks the bonds within dextran, weakening the structural glue of the biofilm from the inside rather than scraping it off from the outside.
Mechanism
| Step | What happens |
|---|---|
| 1. Biofilm forms | Oral bacteria metabolize dietary sugars and produce dextran, building a sticky matrix |
| 2. Matrix adheres | The dextran matrix binds plaque biofilm and trapped stain particles to the enamel |
| 3. Dextranase acts | Dextranase breaks down the dextran polysaccharide bonds within the matrix |
| 4. Biofilm loosens | With the matrix weakened, brushing removes the biofilm with less mechanical force |
Benefits
- Targets the structural matrix that holds plaque onto the tooth, rather than only the surface layer.
- Works alongside other enzymes (invertase, glucose oxidase, papain, bromelain) in a multi-enzyme cascade.
- Supports a lower-abrasion approach to daily cleaning.
Limitations
- Dextranase addresses the biofilm matrix; it does not replace brushing mechanics or interdental cleaning.
- It is one part of a multi-enzyme system — used alone, it does not address protein-based stain film the way papain or bromelain do.
Comparison
Some enzyme toothpastes rely only on a protein-digesting enzyme like papain, which mainly addresses surface stain film. Dextranase adds a complementary mechanism by targeting the polysaccharide matrix underneath, which is why Das Experten innoWeiss combines dextranase with papain, bromelain, invertase and glucose oxidase rather than using a single enzyme.
FAQ
What does dextranase actually break down?
Dextranase breaks down dextran, a sticky polysaccharide that oral bacteria produce to build the structural matrix of plaque biofilm.
Is dextranase the only enzyme that matters in enzyme toothpaste?
No. Dextranase targets the biofilm matrix specifically; a broader multi-enzyme system also needs enzymes like papain and bromelain for protein-based stain film.
Which Das Experten product contains dextranase?
innoWeiss includes dextranase as part of its five-enzyme cascade: dextranase, invertase, glucose oxidase, papain and bromelain.
Related
The Science hub · What Is an Enzyme Toothpaste? · Which Enzymes Remove Plaque? · innoWeiss product page