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Safescraper Twist (META) Sterile single-use bone scraper for harvesting autologous cortical bone – straight or curved. The shape determines accessibility & ergonomics, not the biological quality of the harvested bone. 160° Cutting Area Defined semi-circular blade for efficient scraping Transparent Collection Chamber Chips are collected directly & kept aseptically Safety Mechanism Clip/Lock to prevent unintentional opening Sterile & Single-Use Individually packaged, sterile shelf life typically 3 years Straight vs. Curved – what's the real difference? Both variants operate manually and minimally invasively: You scrape over the cortical bone, the chips are automatically transported into the chamber and can remain there aseptically for a short time or be applied directly. Feature Straight Curved Ergonomics & Access Ideal for easily accessible, flatter areas Optimized for posterior/palatal/retromolar & concave surfaces Chamber Volume approx. 3.0 cc approx. 2.5 cc Primary Indication Linear surfaces, serial harvests, fewer emptying cycles Complex defects & limited access – better visibility/grip Biological Quality Difference lies primarily in handling – not in biological quality Difference lies primarily in handling – not in biological quality What you get clinically (brief, but reliable) Chip morphology: elongated/curled cortical chips (average length approx. 1.3 mm; thickness approx. 150–250 µm) Cell viability: high proportion of viable bone cells, published for osteocytes among others (Ø approx. 45–72%) Workflow: Harvest + Transport + temporary aseptic storage in one system Indications (typical, intraoral) Peri-implant dehiscences/bone defects Local augmentations in horizontal alveolar ridge atrophy (e.g., 1–3 implant positions) Local vertical deficiencies (depending on case/planning) Fenestrations, small defect fillings, ridge contouring Autograft mixed with bone substitute material (e.g., 1:1) + membrane coverage Contraindications / when to be cautious Acute infection in the harvest area, osteomyelitis, suspected tumorous lesions (no harvest until clarified) Very low remaining bone thickness / risk of perforation or proximity to critical structures (e.g., alveolar nerve, sinus wall, roots) Systemic factors with significantly reduced bone healing (benefit-risk assessment, possibly contraindicated) If safe manual access is not possible (e.g., severe trismus) Note: Single-use product – do not reuse or reprocess. Please observe the respective instructions for use/IFU.

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