Multi-Unit Stability Protocol.
Pre-Milled Titanium Blanks (Grade 23 ELI) for fabricating implant-supported bars. Engineered for All-on-4/All-on-6 prosthetic frameworks with maximum flexural rigidity.
01 Clinical Applications
All-on-4/All-on-6 Bars
Multi-unit implant-supported frameworks connecting 4-6 dental implants. Provides rigid support for fixed full-arch prosthetics.
Overdenture Bars
Milled bars for implant-retained overdentures. Compatible with Locator attachments and clip retention systems.
Custom Suprastructures
Screw-retained frameworks with integrated abutment connections. CAD/CAM milled for precise passive fit.
02 Technical Specifications (ASTM F136)
| Property | ASTM F136 Requirement | ValidTi Typical | |
|---|---|---|---|
| Oxygen (O) Content | < 0.10% | ~ 0.13% | High Toughness; Prevents Fatigue Failure |
| Iron (Fe) Content | < 0.12% | ~ 0.25% | Superior Biocompatibility & Uniformity |
| Raw Material Source | Grade 0A Virgin Sponge | Standard Sponge (Scrap mix) | Aerospace Grade Input; Zero Inclusions |
| Tensile Strength (Rm) | ≥ 860 MPa | 950-1050 MPa | |
| Yield Strength (Rp0.2) | ≥ 795 MPa | 880-920 MPa | |
| Elongation (%) | ≥ 10% | 12-15% | |
| Reduction of Area (%) | ≥ 25% | 30-35% | |
| Oxygen Content | ≤ 0.13% | 0.10-0.12% | |
| Iron Content | ≤ 0.25% | 0.15-0.20% | |
| Dimensional Tolerance | Per Drawing | h7 (0/-0.015mm) |
* ELI = Extra Low Interstitial. Reduced oxygen and iron content for enhanced biocompatibility and ductility.
03 Available Formats & Dimensions
Cylindrical Rod Blanks
Precision-ground titanium rods for milling multi-unit bars on 5-axis CNC machines. h7 tolerance ensures consistent tool life.
| Diameter | Applications |
| Ø 10mm | Single-unit bars, short-span |
| Ø 12mm | Medium-span bars (4-unit) |
| Ø 14mm | Full-arch bars (6-unit) |
| Ø 16mm | Overdenture bars, heavy load |
| Length | 55mm, 75mm, 100mm (custom avail.) |
Rectangular Block Blanks
Solid titanium blocks for milling anatomically curved bars. Ideal for full-arch prosthetics requiring vertical dimension.
| Dimensions | Applications |
| 15 × 20 × 50mm | Partial-arch bars |
| 18 × 25 × 70mm | Full-arch bars (standard) |
| 20 × 30 × 90mm | Hybrid prosthetics (bar + gingiva) |
| Tolerance | ±0.1mm (all dimensions) |
04 Why Grade 23 ELI for Implant Bars?
Superior Mechanical Properties
-
High Strength-to-Weight Ratio950 MPa tensile strength at only 4.43 g/cm³ density. Allows thinner cross-sections without compromising rigidity.
-
Fatigue ResistanceExcellent performance under cyclic masticatory loads (1,000,000+ cycles). Critical for long-term bar stability.
-
Passive Fit CompatibilityLow modulus (110 GPa) allows micro-flexion to accommodate implant angulation without stress concentration.
Clinical & Regulatory Benefits
-
Proven BiocompatibilityISO 10993 compliant. Extra-low interstitials reduce risk of allergic reactions and inflammatory response.
-
FDA/CE Cleared MaterialASTM F136 is listed in FDA Product Code EKO (Dental Prosthetic Materials). Streamlines device approval process.
-
Osseointegration SafeTissue-contact safe. No cytotoxicity, genotoxicity, or mutagenicity in ISO 10993-5/10/11 testing.
05 Milling Guidelines for Implant Bars
Tool Selection
- • Carbide End Mills (HRC 55+)
- • 2-3 Flutes for Roughing
- • 4-6 Flutes for Finishing
- • TiAlN Coating Recommended
Cutting Parameters
- • Speed: 2500-4000 RPM
- • Feed: 300-800 mm/min
- • DOC: 0.3-0.8mm (roughing)
- • DOC: 0.05-0.15mm (finishing)
Coolant Strategy
- • Wet Milling REQUIRED
- • 5-8% Emulsion Coolant
- • Through-Tool Coolant Ideal
- • Prevent Galling & Work Hardening
Grade 23 is prone to work hardening. Use sharp tools and maintain consistent feed rates. Interrupted cuts can cause tool deflection and poor surface finish. For detailed milling strategies, see our Bur Life Extension Protocol.
06 Quality Documentation (Included with Every Order)
Material Test Reports
- ✓ EN 10204-3.1 MTC – Material Test Certificate with chemical composition and mechanical properties
- ✓ Certificate of Analysis (CoA) – Lot-specific test results from accredited lab
- ✓ Dimensional Inspection Report – Tolerance verification data
Regulatory Certificates
- ✓ ISO 13485:2016 – Medical Device Quality Management System (Notified Body: NQA)
- ✓ FDA Registration – Establishment No. 3033849259 (Active)
- ✓ Biocompatibility Declaration – ISO 10993 compliance statement
07 Ordering Information
Minimum order for initial testing. Includes full documentation package.
Stock sizes ship within 7 days. Custom dimensions require 14 days.
Each blank sealed in anti-corrosion packaging with lot traceability label.
Custom Specifications Available
Need specific dimensions, surface finishes, or pre-machined features? Contact our engineering team for custom blank production. Available for orders 50+ units.
Related Products
Pre-Milled Abutment Blanks
Titanium blanks with factory-calibrated connection geometries for custom abutments.
h7 Precision Titanium Rods
Precision-ground rods for Swiss lathe machining of implant components.
Bur Life Extension Protocol
Optimize your milling parameters to reduce tool wear and improve surface finish.