ISO 18397:2025

Overview

ISO 18397:2025 - Dentistry - Powered scalers specifies requirements and test methods for powered dental scalers and their tips. It applies to air-powered and electrical-powered scaler handpieces and scaler tips, including piezo and magnetostrictive ultrasonic scalers, whether operated as stand-alone items or connected to dental units, and intended for use on patients. The standard also covers manufacturers’ instructions, marking, labelling and packaging.

Key topics and technical requirements

ISO 18397:2025 addresses the full product life-cycle from design verification to user information. Major technical topics include:

• Classification of scaler handpieces (type and connection)
• Materials and surface requirements suitable for clinical use and reprocessing
• Mechanical durability tests such as drop test, breakage resistance, and stall effort
• Scaler tip performance metrics: extraction force, insertion force, holding torque, tightening torque and output power
• Operational characteristics: frequency, amplitude, vibrations, and noise level
• Utility systems: electrical power supply, air supply, cooling liquid supply, and air/water pressure
• Thermal safety: temperature rise of housings and excessive temperature criteria
• Resistance to reprocessing (cleaning, disinfection, sterilization) and leakage/ingress of water
• Electromagnetic compatibility (EMC) and other usability and safety controls
• Detailed measurement and test methods (sampling, apparatus and procedures) for reproducible verification
• Requirements for instructions for use, maintenance, technical description, marking, labelling and packaging

Practical applications

This standard is intended to ensure safety, performance and interchangeability of powered scalers in clinical practice. Practical uses include:

• Verifying design and manufacturing quality for dental scaler manufacturers
• Defining test protocols for independent test laboratories and quality assurance teams
• Supporting regulatory submissions and conformity assessment for medical device regulators
• Guiding procurement specifications and risk assessment for dental clinics and group purchasers
• Informing sterilization/reprocessing procedures and maintenance manuals

Who should use ISO 18397:2025

• Manufacturers and designers of powered dental scalers and scaler tips
• Test laboratories performing performance and safety assessments
• Regulatory and compliance professionals in dental device approvals
• Quality managers, clinical engineers, and dental procurement officers

Related standards

ISO 18397 aligns with international best practice for medical/dental device safety and EMC. Users should consider it alongside other standards on medical device electrical safety, electromagnetic compatibility, and sterilization/reprocessing to ensure full regulatory compliance and patient safety.

Keywords: ISO 18397, powered scalers, dental scalers, ultrasonic scalers, piezo scalers, magnetostrictive scalers, scaler handpieces, scaler tips, test methods, manufacturer instructions, marking, packaging.