Every RADIUS head uses small nickel‑silver staples to anchor bristles securely in place. This metal is commonly used in oral‑care manufacturing due to its strength, corrosion resistance, and safety. The staple is fully embedded inside the head and does not contact the mouth during brushing.
Related Articles:
- Why are RADIUS bristles end‑rounded?
- What are your bristles made from?
Semantic Variants:
toothbrush staples material • what holds bristles in • nickel silver staple safety
Mar 24, 2026