Overview
ISO 6360-2:2004 - "Dentistry - Number coding system for rotary instruments - Part 2: Shapes" defines the three-digit shape codes used in the ISO 6360 15-digit numbering system for dental rotary instruments and related accessories. Part 2 specifies the generic geometric forms (spheres, cones, wheels, discs, torpedoes, etc.), the allocation of shape code positions (digits 7–9 of the 15-digit code), and classification rules for wheels, discs and diamond instruments. The standard clarifies terminology (English, French, Russian; German equivalents are published by DIN) and explains that these codes are generic identifiers, not precise product specifications.
Key topics and technical requirements
- Shape coding structure
- The third group of three digits in the 15-digit ISO 6360 code identifies the instrument shape.
- Codes are predominantly geometric and span the range 001–316 for general shapes and designs.
- Definitions
- Key terms defined include wheel, disc, torpedo, conical with ogival end, and related shape descriptors.
- Generic vs. specific information
- Codes are generic; exact dimensions or detailed product characteristics belong in specific product standards (see Parts 3–7).
- Special classifications
- All wheel and disc shapes are classified in Part 2.
- For diamond instruments, basic code numbers are used; exact working-part lengths are specified in ISO 6360-4 (example: code 137 for a diamond instrument with a 4.0 mm working length).
- Design variations
- Similar basic types use adjacent or related three-digit codes to indicate variations (e.g., tip angle, head length).
- Terminology context
- Directional terms (proximal/distal; shank vs working part) and multi-language descriptors are provided; only official ISO languages determine ISO terms.
- Allocation process
- Requests for new codes are handled by ISO/TC 106/SC 4 (secretariat maintained by DIN NADENT).
Practical applications
- Manufacturers and product cataloguers use ISO 6360-2 to:
- Standardize product listings and identify instrument shapes consistently across markets.
- Facilitate international trade, procurement and inventory management for dental burs, cutters, diamond instruments, wheels and discs.
- Dental clinicians and procurement specialists use the system to:
- Match instrument shape requirements to clinical procedures.
- Communicate unambiguously with suppliers and regulatory authorities.
- Regulatory and standards professionals use the code system to harmonize classification and reporting.
Who should use this standard
- Dental instrument manufacturers and R&D teams
- Dental product cataloguers and distributors
- Clinical dentists and dental specialists
- Regulatory bodies, procurement officers, and standards committees
Related standards
- ISO 6360-1 - General characteristics (normative reference)
- ISO 6360-3, -4, -6, -7 - Specific characteristics for burs, diamond instruments, abrasive instruments, mandrels/special instruments
- ISO 6360-5 - (Part under preparation for root-canal instruments)
Keywords: ISO 6360-2, dental rotary instruments, number coding system, instrument shapes, dental burs, wheels and discs, diamond instruments.
