High flexural strength also affects the thickness of the restoration walls. ▸ The strength values required for specific restorations or indications are detailed in the relevant standards.ī) Minimally invasive treatment options with thin wall thicknesses
Or, if put the other way round: The more extensive the restoration is, the stronger the material should be.The more strength a material offers, the more units a restoration can include.As a result, flexural strength also determines the indications for which a material can be used: High flexural strength is essential for stress-bearing restorations, when high pressure/stress is exerted on the material or restoration. Materials with high flexural strength offer advantages with regard to two applications in particular: The actual advantages of high flexural strength For the values to be comparable, they have to be obtained using the same measuring method.ĭigital dentistry and dental technology: The dental world in transition Values measured with different measuring methods are not comparable. Comparisons between different materials should therefore always be taken with a pinch of salt. on whether a material is polished or ground, for instance. However, the flexural strength determined during a test depends heavily on the measuring method used and the surface preparation of the test samples, i.e. The higher the value, the more impacting forces the material is able to withstand. As soon as this value is exceeded, the test specimen breaks. flexural strength indicates how much force is required to break a test sample of a defined diameter. Note: Measuring methods vary!įrom a scientific point of view, flexural strength informs about the resistance of a material against deformation, i.e. With good reason: flexural strength is considered to be a key value when it comes to the stability of a material - such as zirconium oxide. Every manufacturer of dental materials provides values that refer to this feature. What exactly do we mean by ‘flexural strength’? Why is flexural strength important? Which values are considered good? Find out some of the most important things you should know about this topic.įlexural strength: one of the key values for evaluating the stability of a materialįlexural strength is a term that is frequently used in the dental world. Surely you have already come across the term ‘flexural strength’.
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