Overview
ISO 13397-1:1995 is an international standard developed by ISO Technical Committee 106 (Dentistry), specifically Subcommittee SC 4, which focuses on dental instruments. This standard sets forth general material and performance requirements for periodontal curettes, dental scalers, and excavators, which are essential dental hand instruments used in periodontal treatments and procedures. By defining clear specifications, ISO 13397-1 ensures consistent quality, safety, and reliability across these critical dental instruments.
Key Topics
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Material Requirements
- Working ends of instruments must be made of martensitic stainless steel complying with ISO 7153-1 or equivalent materials that meet strict durability and hardness standards.
- Handles may use manufacturer-selected materials, provided they conform to hardness and performance criteria outlined in the standard.
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Performance Criteria
- Instruments must exhibit Vickers hardness within two specified classes:
- Class 1: 600 HV to 700 HV
- Class 2: 550 HV to 620 HV
- Resistance to corrosion and thermal exposure is mandatory, ensuring longevity and safety when instruments undergo sterilization processes such as autoclaving or boiling.
- The working end and handle union must withstand tensile loads of 600 N and torque forces of 400 N·cm without loosening, emphasizing secure instrument construction.
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Surface Quality
- Surfaces must be free from pores, crevices, and residual materials.
- Satin and mirror finishes are defined with requirements for smoothness and reflectivity to reduce glare and improve handling comfort.
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Dimensional Design
- Instruments must adhere to design and dimensional specifications as detailed in ISO 13397 series parts.
- Measurement methods include the use of optical projectors to ensure precise dimensions and angular alignments for optimized performance.
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Testing Procedures
- Includes autoclave, boiling water, and thermal tests based on ISO 13402 to assess corrosion resistance and material stability.
- Specific tests on the union strength between the handle and working end ensure mechanical robustness.
Applications
ISO 13397-1:1995 is vital for manufacturers, dental professionals, and regulatory bodies engaged in the production, procurement, and regulation of periodontal curettes, dental scalers, and excavators. Practical applications include:
Related Standards
- ISO 7153-1: Specifies requirements for surgical stainless steel materials, relevant for the working ends of dental instruments.
- ISO 6507-2: Defines Vickers hardness testing methods, critical for classifying instrument hardness.
- ISO 13402: Outlines procedures for testing surgical and dental hand instruments’ resistance to autoclaving, corrosion, and thermal exposure.
- ISO 1942-3: Provides dental vocabulary, ensuring consistent terminology related to dental instruments.
- Other parts of the ISO 13397 series specify particular instrument types, including:
- Part 2: Dental curettes - Gr-type
- Part 3: Dental scalers - H-type
- Part 4: Dental excavators
Keywords
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Open preview (PDF)Periodontal curettes, dental scalers and excavators — Part 1: General requirements