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  2. Dental cement - Wikipedia

    en.wikipedia.org/wiki/Dental_cement

    Amalgam does not bond to tooth tissue and therefore requires mechanical retention in the form of undercuts, slots and grooves. However, if insufficient tooth tissue remains after cavity preparation to provide such retentive features, a cement can be utilised to help retain the amalgam in the cavity.

  3. Diamond grinding of pavement - Wikipedia

    en.wikipedia.org/wiki/Diamond_grinding_of_pavement

    Diamond grinding is a pavement preservation technique that corrects a variety of surface imperfections on both concrete and asphalt concrete pavements. Most often utilized on concrete pavement, diamond grinding is typically performed in conjunction with other concrete pavement preservation (CPP) techniques such as road slab stabilization, full- and partial-depth repair, dowel bar retrofit ...

  4. Inlays and onlays - Wikipedia

    en.wikipedia.org/wiki/Inlays_and_onlays

    For tooth preparation, firstly start with occlusal reduction which depending on the restorative material being used can range from 0.5mm-2mm. The best instrument to use for this is a high-speed diamond fissure bur and the reduction should follow the inclination of the cusps and grooves as this will allow the preservation of more tooth tissue.

  5. Groove (engineering) - Wikipedia

    en.wikipedia.org/wiki/Groove_(engineering)

    Groove on a cylinder. In manufacturing or mechanical engineering a groove is a long and narrow indentation built into a material, generally for the purpose of allowing another material or part to move within the groove and be guided by it. Examples include:

  6. Rut (roads) - Wikipedia

    en.wikipedia.org/wiki/Rut_(roads)

    A rut is a depression or groove worn into a road or path by the travel of wheels or skis. Ruts can be formed by wear, as from studded snow tires common in cold climate areas, or they can form through the deformation of the asphalt concrete, pavement or subbase material. In modern roads the main cause is heavily loaded trucks.

  7. Tongue and groove - Wikipedia

    en.wikipedia.org/wiki/Tongue_and_groove

    Tongue and groove joints allow two flat pieces to be joined strongly together to make a single flat surface. Before plywood became common, tongue and groove boards were also used for sheathing buildings and to construct concrete formwork. A strong joint, the tongue and groove joint is widely used for re-entrant angles

  8. Amalgam (dentistry) - Wikipedia

    en.wikipedia.org/wiki/Amalgam_(dentistry)

    Amalgam filling on first molar. In dentistry, amalgam is an alloy of mercury used to fill teeth cavities. [1] It is made by mixing a combination of liquid mercury and particles of solid metals such as silver, copper or tin.

  9. Nanoconcrete - Wikipedia

    en.wikipedia.org/wiki/Nanoconcrete

    Decorative plate made of Nano concrete with High-Energy Mixing (HEM) Two-layered pavers, pigmented top layer made of HEM nanoconcrete Nanoconcrete (also spelled nano concrete or nano-concrete) is a form of concrete that contains Portland cement particles that are no greater than 100 μm [1] and particles of silica no greater than 500 μm, which fill voids that would otherwise occur in normal ...