Dentistry Applications of Material Test Equipment

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Dentistry Applications of Material Test Equipment

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.