Overview
ISO 19490:2025 - Dentistry - Sinus membrane elevator defines requirements and test methods for sinus membrane elevators used during dental implant procedures for sinus floor lifting. The standard covers design classification, material and surface requirements, reprocessing resistance, mechanical performance (hardness, tensile and torsional strength of the active part and its connection to the handle), and the required marking, labelling and user instructions. It is intended to ensure safety, performance and consistent reprocessing information for instruments used in implantology.
Key Topics and Requirements
- Scope and purpose: Instruments intended to elevate or displace the sinus membrane (lateral/external or vertical/crestal approach) to permit vertical bone augmentation for implant placement.
- Classification: Two types based on surgical approach:
- Type 1 - lateral/vestibular/external approach
- Type 2 - vertical/crestal/internal approach
- Material and dimensional conformity: Materials, handle, surface finish and dimensions are to conform with ISO 4865-1:2023 requirements and test procedures.
- Reprocessing resistance: Instruments must withstand the reprocessing cycles defined in the instructions for use without deformation or corrosion; post-reprocessing tests must meet the standard’s mechanical criteria.
- Hardness: The active part (tip and shank) must have a hardness of ≥ 480 HV1 (≈ 48 HRC) when tested per ISO 4865-1.
- Mechanical connection strength:
- Tensile (pull-off) force of the shank-to-handle connection: ≥ 1 000 N.
- Torsional strength of the shank-to-handle connection: ≥ 500 N·cm.
- Test methods are referenced to ISO 4865-1.
- Geometry: Shape of the active part and tip is left to the manufacturer; Figures provided in the standard are illustrative only.
- Marking, labelling, packaging and instructions: Must follow ISO 4865-1:2023 provisions; reprocessing instructions must include cleaning, disinfection, sterilization and packaging/storage information consistent with ISO 17664-1.
Applications and Users
ISO 19490:2025 is practical for:
