1. Wedge-Free, Rust-Free & Metal-Free Implantation Process
“The brush head of Eany electric toothbrush adopts a new and advanced wedge-free, rust-free and metal-free bristle implantation process.”
Traditional electric toothbrush heads rely on miniature copper or stainless-steel metal staples (wedges) driven into pre-molded holes to anchor bristle bundles. In warm, humid bathroom environments, metal staples oxidize and corrode, releasing rust water and trapping oral bacteria inside micro-crevices.

1.1 Monolithic Thermal Hot-Melt Fusion
EANY® eliminates metal staples completely:
- Integrated Bristle Root Fusion: The bottom ends of the bristles are thermally melted into a single unified base structure (
热熔形成整体), locking the filaments directly into the food-grade brush head plate. - Zero Metal Oxidation: Fundamentally prevents metal rust water (
锈水) from leaching into the oral cavity. - Gap-Free Hygiene: Seals off internal tuft cavities where toothpaste residue and biofilm typically accumulate.
2. US DuPont Antibacterial Filaments & End-Rounding QC

2.1 +40% High-Density Bristle Flock
Because copper-free thermal tufting does not require thick partition walls to hold metal wedges, EANY® achieves approximately +40% higher bristle density (+40% 毛量) within the same brush head footprint, significantly increasing plaque-sweeping contact points per sonic stroke.
2.2 Diamond End-Rounding Inspection
- Enamel Protection: The top of each bristle is precision-rounded (
磨圆工艺) to prevent sharp, unpolished cut edges from scratching tooth enamel or irritating gums during high-speed sonic vibration. - Food-Grade Polymer: Manufactured with certified food-grade engineering plastic and resilient antibacterial filaments.
3. 3D Contoured Bristles & Acoustic Power Ring

3.1 Multi-Angle 3D Crescent Cutting
EANY® brush heads feature a 3D contoured profile (三维立体刷毛) that mirrors the natural curvature of teeth, allowing longer interdental tips to penetrate deep between teeth while central tufts polish occlusal and labial surfaces.
3.2 Precision Base Metal Torque Ring
- Lossless Sonic Transmission: The precision coupling ring at the bottom of the EANY® brush head locks onto the electric toothbrush drive shaft, ensuring that acoustic energy from the handle is transmitted to every individual bristle.
- +28% Plaque Removal: Laboratory experiments demonstrate that replacing worn brush heads with a fresh EANY® brush head cleans up to 28% more dental plaque.