Design And Implementation of IoT-Based Endodontic File Measurement Instrument for Dental Practitioners

Precise determination of working length during root canal treatment is critical to ensuring successful endodontic outcomes. Traditional techniques for measuring file length are often manual, time-consuming, and susceptible to human error. This research introduces an IoT-based endodontic file measurement instrument aimed at improving accuracy, usability, and efficiency for dental practitioners. The proposed system integrates ultrasonic sensing for file length detection, a microcontroller (ESP32) for processing, and Wi-Fi-based IoT communication for real-time data transfer to a digital interface. Additional components, such as an OLED display and touch-sensitive interface, enhance user interaction. A mobile application was developed using the Blynk IoT platform to enable wireless monitoring and data logging. Testing of the prototype revealed that the device could measure file length with a high degree of precision, maintaining an error margin within ±0.5 mm. Real-time updates and remote monitoring were successfully demonstrated, offering enhanced convenience and reliability for clinicians. This IoT-based instrument provides a promising alternative to conventional techniques, offering improved ergonomics, digital integration, and potential for data-driven decision-making in dental procedures. Future work will focus on miniaturization, integration with electronic apex locators, and clinical validation across diverse patient scenarios to enable widespread adoption in modern dental practice.