NEET MDS Shorts
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Dental MaterialsA voltage regulator helps maintain consistent speed and proper mixing of amalgam regardless of fluctuations in line voltage.
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Dental MaterialsDental composite resins typically consist of a resin matrix (monomers), filler particles (such as silica or glass), initiators (like camphorquinone), and accelerators (such as amines) to control the setting process.
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Dental MaterialsThe first light-activated systems were formulated for UV light to initiate free radicals. Today the UV light-cured composites have been replaced by visible blue-light-activated systems with greatly improved depth of cure, a controllable working time, and other advantages.
Because of these advantages, visibly light-activated composites are more widely used than are chemically acti wited materials.
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Dental MaterialsPhosphoric acid concentrations between 20% and 30% are commonly used for acid etching of enamel to create a roughened surface for mechanical bonding of restorative materials.
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Dental MaterialsGiomers are a combination of fluoraluminosilicate glass and silica-filled urethane resin. This unique composition allows for the release of fluoride and improved physical properties compared to traditional composites.
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Dental MaterialsThe typical mixing ratio for zinc polycarboxylate cement is 1:2 (powder to liquid).
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Dental MaterialsCompressive and tensile strengths of spherical alloys are greatest at normal trituration time.
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Dental MaterialsThe elastic limit, also known as the yield strength, is the point at which a wire starts to undergo permanent deformation. When a wire is deflected beyond this point, it does not return to its original shape completely.