Overview
ISO 22794:2007 - Dentistry - Implantable materials for bone filling and augmentation in oral and maxillofacial surgery - Contents of a technical file - specifies the information a manufacturer must include to demonstrate the safety and performance of implantable dental materials used for bone filling and augmentation. The standard applies to resorbable and non‑resorbable implantable materials (excluding products that are >90% hydroxyapatite, autografts/allografts, membranes, or primarily medicinal-delivery systems). Evaluation covers physico‑chemical, mechanical, biological and clinical behaviour.
Key topics and requirements
- Technical file content: minimum documentation on chemical composition, physical properties, intended performance, preclinical and clinical evaluation, manufacture, sterilization, packaging and user information.
- Chemical characterization: full composition (100% mass), crystalline/non‑crystalline phases (XRD/FTIR/DSC where appropriate), elemental ratios (e.g., Ca/P), and relevant trace impurities.
- Physical properties: form (granules, blocks, putty), dimensions, mass/volume, porosity (including SEM images), particle size/shape for particulates.
- Clinical and preclinical evaluation:
- Risk analysis per ISO 14971.
- Biocompatibility assessment consistent with ISO 10993‑1 (literature review and/or testing).
- Bench tests on final sterilized materials (strength, modulus, pH, dissolution/solubility, viscosity). For in‑vivo setting materials: working/setting time, dimensional stability, temperature profiles.
- Animal testing recommended for novel materials or when critical specifications differ from established products.
- Manufacture, sterilization and packaging: description of processes and validation data (referenced sterilization standards and packaging validation).
- User information: intended applications, precautions, warnings (e.g., not for infected sites, single‑use), and detailed instructions for site preparation, placement, containment and follow‑up.
Applications - who uses ISO 22794:2007
- Manufacturers of dental bone grafts and augmentation biomaterials preparing a regulatory technical file.
- Regulatory affairs and quality managers assembling evidence for market access and conformity assessment.
- R&D and materials scientists designing and validating implantable materials.
- Notified bodies and competent authorities reviewing safety/performance documentation.
- Clinicians and purchasers seeking assurance about product testing, intended use and handling instructions.
Related standards (examples)
Keywords: ISO 22794:2007, implantable materials, bone filling, augmentation, oral and maxillofacial surgery, technical file, biocompatibility, sterilization, preclinical evaluation.
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