Overview
EN ISO 9173-3:2014 (ISO 9173-3:2014) - published by CEN/ISO - specifies the design of dental extraction forceps. This part of ISO 9173 defines the physical features, dimensional references and classification principles used to describe extraction forceps (beak, joint and handle). The standard supports consistent design, clear designation and safe, ergonomic use of extraction forceps in clinical dentistry.
Key topics and technical requirements
- Scope and purpose: Sets out design characteristics required for extraction forceps used in dentistry; complements ISO 9173-1 (general requirements and test methods) and ISO 9173-2 (designation).
- Terms and symbols: Defines key terms (beak, joint, handle) and dimensional symbols (e.g., beak thickness b, beak width, overall forceps length l) used for consistent measurement and documentation.
- Classification:
- Joint design: circular joint, lap joint, box lock Type 1 and Type 2. Joints must allow free movement; PTFE sheet is recommended for circular joints.
- Handle shape: straight, curved and multiple-curved handles; manufacturer choice allowed but surface must be easy to clean.
- Beak shape and surface: coated or non‑coated; smooth or serrated; pointed beaks for furcation grip; universal beaks for use in any quadrant.
- Handle types and ergonomics: Examples include knurled handles for grip, palm-grasp designs, end curves for finger stability, and differences between maxillary (often upward-curved) and mandibular (typically straight) forceps. Surface profiles and cleaning considerations are emphasized.
- Intended application: Design combinations (beak + joint + handle) determine intended clinical application. Manufacturers must indicate intended use (adult/child, tooth or oral region) per ISO 9173-2.
Applications and who uses this standard
- Dental instrument manufacturers: design and document extraction forceps with standardized dimensions, joint types and handle ergonomics; ensure compatibility with testing and designation parts of ISO 9173.
- Regulatory and compliance teams: demonstrate conformity with recognized European/ISO design expectations for surgical dental instruments.
- Procurement and clinical managers: select instruments based on standardized descriptions of beak shape, handle type, and intended application.
- Testing laboratories and quality assurance: reference dimensional symbols and classification when verifying forceps design and labeling.
Related standards
- ISO 9173-1 - General requirements and test methods for extraction forceps
- ISO 9173-2 - Designation (naming and intended application)
- ISO 1942 - Dentistry vocabulary
- ISO 15087 - Dental elevators
Keywords: dentistry, extraction forceps design, ISO 9173-3:2014, beak shape, handle types, joint design, dental instrument standards.
