Description
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.
