PTFE electret-based ultrasonic toothbrush for whitening and caries prevention

Overview

The proposed solution is a cutting-edge ultrasonic toothbrush that utilizes PTFE (Polytetrafluoroethylene) piezoelectric electret bristles. These bristles, when activated by low-frequency ultrasonic waves, produce reactive oxygen species (ROS) capable of degrading tooth pigments and eliminating pathogenic bacteria. This technology offers enhanced tooth whitening and caries prevention compared to traditional toothpaste ingredients, while also providing superior protection against tooth sensitivity and ensuring biocompatibility.

Technical specifications

• Material: PTFE particles activated into piezoelectric electrets via ultrasonic treatment.
• Mechanism: Ultrasonic waves generate electric fields that deform PTFE particles, trapping charges that react with water to produce ROS.
• Benefits: Effective pigment degradation, antibacterial properties, energy-efficient activation without high-voltage requirements.
• Comparative Advantage: Outperforms conventional whitening ingredients like peroxides and surfactants in both efficacy and safety.
• Applications: Suitable for daily oral hygiene, providing both whitening and antibacterial benefits.

Technology readiness level

The technology has reached a readiness level of 5, indicating that it has been validated in laboratory settings with isolated teeth and proven effective in producing ROS and antibacterial effects. Future steps include clinical application evaluations and product popularization based on experimental feedback.