Short answer

Designers and manufacturers of CAD/CAM dental materials must ensure their products can withstand the abrasive forces from commonly used toothpastes, particularly those containing activated charcoal.

Field: Final Production
Source: BMC Oral Health (2026)
Method: Experimental simulation
Sample: 96 specimens
Evidence: Strong effect

The abrasive nature of activated charcoal toothpaste can cause significant surface degradation and volumetric loss in certain ceramic and hybrid CAD/CAM dental materials, exceeding acceptable thresholds after simulated brushing. This final production research insight is drawn from a 2026 study published in BMC Oral Health. Using Experimental simulation with 96 specimens, researchers explored how this design variable affects real-world outcomes. The key design takeaway: Designers and manufacturers of CAD/CAM dental materials must ensure their products can withstand the abrasive forces from commonly used toothpastes, particularly those containing activated charcoal.

Study

Final ProductionNew This WeekStrong effect

Activated Charcoal Toothpaste Significantly Degrades Ceramic CAD/CAM Surfaces

BMC Oral Health · 2026

Key Findings

01Activated charcoal toothpaste significantly increased surface roughness in feldspathic ceramic (VM) and lithium disilicate-reinforced glass ceramic (EMC) materials, exceeding clinical thresholds.
02Hybrid ceramic materials also showed increased roughness with AC toothpaste, though some remained within acceptable limits.
03The abrasive effect was more pronounced with longer simulated brushing durations (30,000 cycles).

Application

Design takeaway

Designers and manufacturers of CAD/CAM dental materials must ensure their products can withstand the abrasive forces from commonly used toothpastes, particularly those containing activated charcoal.

How to apply

When specifying or developing CAD/CAM materials for dental applications, conduct abrasive wear testing using representative consumer products like activated charcoal toothpaste.

Project actions

01When choosing materials for a design project, consider how everyday products might affect their performance over time.
02Simulate real-world wear and tear on your prototypes to understand their long-term durability.

Method & Evidence

AimTo evaluate and compare the abrasive impact of activated charcoal (AC) and whitening (WH) toothpastes on the surfaces of various CAD/CAM dental materials after simulated toothbrushing.

MethodExperimental simulation

ProcedureSpecimens of four different CAD/CAM materials were prepared and polished. Initial surface roughness was measured. Specimens were then subjected to simulated toothbrushing using distilled water, WH toothpaste, or AC toothpaste for two durations (10,000 and 30,000 cycles). Surface roughness was re-measured, surface topography was analyzed via SEM, and volumetric loss was calculated.

Sample96 specimens

ContextDental prosthetics and restorative materials

Variables

IV["Type of toothpaste (distilled water, whitening, activated charcoal)","Type of CAD/CAM material","Brushing duration (10k, 30k cycles)"]

DV["Surface roughness (Ra)","Surface topography changes","Volumetric loss"]

CV["Specimen thickness","Manual polishing procedure","Toothbrushing simulator settings"]

Strengths & Limitations

Strengths

+Inclusion of multiple CAD/CAM material types.
+Use of a standardized toothbrushing simulator for controlled wear simulation.

Limitations

The wear simulation might not perfectly match real-life brushing habits or the variety of toothpaste formulations available.

Reliability & validity

The use of a standardized simulator and multiple specimens per group enhances reliability. Validity is supported by measuring multiple degradation indicators (roughness, topography, volume loss).

Think critically

How might the chemical composition of activated charcoal, beyond its abrasive particles, contribute to material degradation?

Design Principles

"Material durability must be assessed against common use-case environmental factors."

This research highlights a critical material-interaction issue for dental prosthetics. Designers and manufacturers of CAD/CAM materials need to consider the long-term effects of common consumer products on the durability and aesthetic integrity of their materials.

What This Means for Your Design

Some toothpastes, especially those with activated charcoal, can scratch and wear down the materials used for fake teeth or fillings.

How to use in your project

1.Reference this study when discussing the material selection process and the importance of considering long-term wear and degradation in your design project.

Add to My Project

Quick Cite

Paragraph starter

The selection of materials for this design project considered their long-term durability. Research, such as that by Çölgeçen and Barutçu (2026), indicates that common consumer products like activated charcoal toothpaste can significantly degrade the surface integrity of materials used in dental restorations. This highlights the need to test material prototypes against potential real-world wear factors to ensure product longevity and performance.

Source

BMC Oral Health

Surface degradation and digital volumetric loss in ceramic and hybrid CAD/CAM surfaces after simulated toothbrushing with activated charcoal vs. whitening toothpaste

journal · 2026

View source

Questions About This Research

What does the research say about activated charcoal toothpaste significantly degrades ceramic cad/cam surfaces?: Designers and manufacturers of CAD/CAM dental materials must ensure their products can withstand the abrasive forces from commonly used toothpastes, particularly those containing activated charcoal. Evidence: BMC Oral Health (2026).
Why does "Activated Charcoal Toothpaste Significantly Degrades Ceramic CAD/CAM Surfaces" matter for design?: This research highlights a critical material-interaction issue for dental prosthetics. Designers and manufacturers of CAD/CAM materials need to consider the long-term effects of common consumer products on the durability and aesthetic integrity of their materials.
How can designers apply this research?: Designers and manufacturers of CAD/CAM dental materials must ensure their products can withstand the abrasive forces from commonly used toothpastes, particularly those containing activated charcoal.
What were the main findings?: Activated charcoal toothpaste significantly increased surface roughness in feldspathic ceramic (VM) and lithium disilicate-reinforced glass ceramic (EMC) materials, exceeding clinical thresholds.. Hybrid ceramic materials also showed increased roughness with AC toothpaste, though some remained within acceptable limits.. The abrasive effect was more pronounced with longer simulated brushing durations (30,000 cycles).
What research method was used?: Experimental simulation with 96 specimens.
How strong is the evidence?: Evidence strength is rated Strong effect, based on a 2026 journal from BMC Oral Health.
What should I do differently in my next project?: When specifying or developing CAD/CAM materials for dental applications, conduct abrasive wear testing using representative consumer products like activated charcoal toothpaste.
What are the limitations?: Simulated brushing may not perfectly replicate real-world conditions, and the study focused on specific material types and toothpaste formulations.