Overview
EN ISO 13295:2007 - Dentistry - Mandrels for rotary instruments (ISO 13295:2007) specifies requirements, packaging and marking for mandrels used with discs and polishers in dentistry. The standard defines mandrel types, material and mechanical properties, dimensional requirements and minimum labelling information. It uses the ISO 6360 coding system (a 15‑digit identification number) to identify rotary dental instruments and supports interchangeability and traceability of mandrels and rotary accessories.
Key topics and technical requirements
- Scope: Mandrels suitable for discs and polishers used in dentistry; intended to standardize support shafts for rotary instruments.
- Classification: Five mandrel types by application/mechanical properties:
- Type 1 - standard mandrel
- Type 2 - reinforced mandrel
- Type 3 - mandrel with cylindrical thread (for unmounted polishers)
- Type 4 - mandrel with conical thread (for unmounted polishers)
- Type 5 - mandrel for snap‑on polishers
- Material / Mechanical requirements:
- Types 1–4 and associated screws: proof strength (Rp0.2) ≥ 600 MPa (tested per ISO 6892).
- Type 5: minimum Vickers hardness 250 N/mm².
- Dimensions:
- Detailed dimensional specifications and tolerances are given (figures in the standard) - plate/screw head diameter typically 5 mm (other diameters allowed at manufacturer’s discretion).
- Shanks conform to ISO 1797‑1 where applicable.
- Run‑out and dimensional testing referenced to ISO 8325:2004.
- Testing:
- Mechanical testing per ISO 6892 (tensile/proof strength) and dimensional/run‑out testing per ISO 8325.
- Labelling / Packaging:
- Package labelling must include: manufacturer/trademark, lot number, shank type (ISO 1797‑1), ISO 6360 encoded characteristics (general and shape/specific), and plate diameter (if applicable).
- Packaging method left to manufacturer discretion.
Applications and users
- Who uses it:
- Dental instrument manufacturers and suppliers (design, production, quality control)
- Dental laboratories and clinics (procurement/specification)
- Regulatory and compliance teams ensuring CE/national conformity
- Test laboratories performing mechanical and dimensional checks
- Practical value:
- Ensures interchangeability and safe use of mandrels with discs and polishers.
- Provides clear material and testing criteria to reduce failure risk during clinical use.
- Supports traceability via ISO 6360 coding for inventory, procurement and regulatory documentation.
Related standards
- ISO 6360 - Number coding system for rotary dental instruments (identification)
- ISO 1797‑1 - Shanks for dental rotary instruments (metal shanks)
- ISO 6892 - Metallic materials - tensile testing (ambient)
- ISO 8325:2004 - Test methods for rotary instruments
- ISO 1942 - Dentistry - Vocabulary
EN ISO 13295:2007 is a harmonized international/European standard prepared by ISO/TC 106 and CEN/TC 55, intended to improve safety, compatibility and quality of mandrels used in dental rotary work.