These products include crowns, bridges, dentures and other dental products. Dental lab technicians follow a prescription from a licensed dentist when manufacturing these items, which include prosthetic devices (such as denture teeth and implants) and therapeutic devices (such as orthodontic devices).ental Lab Certification in the UK [edit]. All Dental Technicians and Clinical Dental Technicians in the UK are required by law to be registered with the General Dental Council (GDC). The GDC is an organisation which regulates all dentists and dental care professionals, they set and maintain standards in UK dentistry.
A concrete slab is a common structural element of modern buildings. Horizontal slabs of steel reinforced concrete, typically between 100 and 500 millimeters thick, are most often used to construct floors and ceilings, while thinner slabs are also used for exterior paving.
Concrete is a composite material composed of aggregate bonded together with a fluid cement which hardens over time. Most use of the term concrete refers to Portland cement concrete or to concretes made with other hydraulic cements, such as ciment fondu. However, road surfaces are also a type of concrete, asphaltic concrete, where the cement material is bitumen.