Foshan Liangya – Dental High-Speed Handpiece with Caries Detection Light

Sep 19,2025

Building on this foundation, Foshan Liangya’s innovative product creatively integrates a UV-based caries detection light into the phone’s head. The detection light uses a low-power LED light source that emits ultraviolet light at a specific wavelength, triggering a fluorescent response in demineralized areas of the tooth. This makes early-stage cavities visibly fluoresce, enabling dentists to precisely pinpoint the extent of the lesion before performing any cutting procedures.

# Foshan Liangya – Dental High-Speed Handpiece with Caries Detection Light

In the field of dental medical equipment, Foshan Liangya Dental Equipment Co., Ltd. has launched a high-speed dental handpiece equipped with a cavity-detection light—integrating both therapeutic and diagnostic functions—thanks to its deep alignment of technological innovation with clinical needs. This innovative device not only maintains the efficient cutting performance of conventional high-speed handpieces but also features an integrated UV-light detection module.

I. Technological Breakthrough: Innovative Design for Integrated Diagnosis and Treatment

The core function of a traditional dental high-speed handpiece is to drive the bur via a pneumatic turbine, enabling high-speed operations such as cavity preparation and tooth shaping at speeds ranging from 300,000 to 400,000 RPM. Building on this capability, Foshan Liangya’s product innovatively integrates an ultraviolet (UV) caries detection light into the handpiece head. This detection light uses a low-power LED source, emitting UV light at a specific wavelength that stimulates fluorescence in demineralized areas of the tooth. As a result, early-stage cavities become visibly fluorescent, helping dentists precisely identify the extent of lesions before initiating any cutting procedures.

This detection light improves the detection rate of pit and fissure caries by 42% compared to traditional visual examination, particularly demonstrating a significant advantage in identifying hidden lesions.

II. Performance Optimization: Deep Adaptation to Clinical Scenarios

1. Powertrain Upgrade

The equipment features imported ceramic bearings, which offer three times better wear resistance compared to traditional steel bearings, while delivering a whisper-quiet operation with noise levels as low as ≤65 decibels. Measured data shows that after 2 hours of continuous operation, the bearing temperature rose by only 8°C—significantly lower than industry standards—effectively extending the equipment's service life.

2. Anti-Backflow Safety Mechanism

To prevent aerosol cross-contamination, the device features a built-in **four-point backflow prevention valve**, which ensures unidirectional flow of working gas via a negative-pressure sealing mechanism.

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