Dental products are tested mechanically to prove their performance in various applications. For instance, compression tests on resin-modified glass ionomers and resin composites are used to compare mechanical strength to conventional cements in dental applications (ISO 4049). Tensile bond strength is important to hydrocolloid impression materials (ISO 13716). ISO 6872 covers test methods for dental ceramic materials for fixed all-ceramic and metal-ceramic restorations and prostheses. The flexural strength specifications include ceramic dental fillings, crowns, veneers, implants, and brackets. A three or four-point bending test is used in that test. Evaluating mechanical and wear characteristics of restorative materials and analyzing the durability of adhesives is critical to improving dental devices and implants. Customers perform flexural, tensile and shear bond strength tests on products and adhesives. Restorative materials provide wear resistance and durability. A standardized mastication cycle helps evaluate comparative wear on different materials and identifies wear mechanisms. Considerable research is done into the efficacy of new dental adhesives in orthodontics. Shear bond strength of orthodontic brackets to the enamel surface, resistance to dislodgment, shear-peel band retention and other mechanical strength tests are used. Orthodontic wires are tested in tensile tests for strength as well.
Applicable Testing Standards
- ISO/TS 13498 Torsion Test of Implant Body/Connecting Part Joints of Endosseous Dental Implant Systems
- ISO 4049 Dental Flexural Bend Test Equipment
- ISO 6872 Flexural Strength Dentistry Ceramics
- ISO 9917 Water-Based Dental Cement
- ISO 11405 Dental Material Adhesion Test Equipment
- ISO 11499 Dental Cartridge Syringe Test Machine
- ISO 13716 Tensile Bond Strength Hydrocolloid Dental Test Equipment
- ISO 14801 Fatigue Dental Implants Test Equipment
- ISO 20795 Denture and Orthodontic Base Polymers
- ISO 22674 Metallic Materials for Fixed and Removable Restorations and Appliances
Recommended Test Machine
Forces up to 10 kN (2,250 lbf)
Low force tabletop systems
Modular series of five frame options with adjustable test space
Affordable testing option for tension, compression, bend, peel and much more
Torques up to 500 Nm (4,500 lbf∙in)
Speeds from 2 RPM to 120 RPM
Adjustable test space
Convenient tabletop design
Forces up to 5 kN (1,125 lbf)
Low force tabletop systems
Tests at speeds up to 2,500 mm/min (100 in/min)
Best for high travel or high elongation test requirements
Force range of 5 kN to 600 kN (1,125 lbf to 135,000 lbf)
Adjustable test space
The most popular choice for static tension and compression tests
These dual column testers are available in both tabletop and floor standing models
Static and fatigue forces up to 50 kN (11,250 lbf)
Frequency ratings up to 75 Hz
Oil-free, all electric actuator for clean test conditions
Lower purchase, operating, and maintenance costs than hydraulic equivalents
Recommended Testing Accessories
Standard load ratings up to 300 kN (67,500 lbf); higher ratings available upon request
Platen diameters from 56 mm to 346 mm (2.2 in to 13.6 in)
Available in steel, stainless steel, aluminum, or delrin construction
Machined surface for flat interface with test specimen
Load ratings up to 10 kN (2,250 lbf)
Interchangeable roller diameters from 1 mm to 12.7 mm (0.04 in to 0.5 in)
Easily adjustable span
Base lengths of 150 mm (6 in) and 300 mm (12 in)
Rated to 1 kN (225 lbf)
Maximum specimen thicknesses from 10 mm to 50 mm (0.39 in. to 2.0 in.)
Simple design can be used for a multitude of tensile applications
Inexpensive and reliable
Designed in accordance to ISO 6872
Allows for testing in temperature-controlled water or saline solution
PID controlled temperature up to 45°C (113°F)
Size is optimized per application
Accompanied by a broad set of accessories that are designed for biomedical baths
