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In dentistry, inlays and onlays are used to fill cavities, [1] and then cemented in place in the tooth. This is an alternative to a direct restoration , made out of composite, amalgam or glass ionomer , that is built up within the mouth.
Composites and amalgam are used mainly for direct restoration. Composites can be made of color matching the tooth, and the surface can be polished after the filling procedure has been completed. Amalgam fillings expand with age, possibly cracking the tooth and requiring repair and filling replacement, but chance of leakage of filling is less.
Polishing of an amalgam filling; The pressure from high speed turbine dental drills can be enough to force amalgam particles into soft tissue, [1] as may occur when an old amalgam filling is being removed; When a tooth with an amalgam filling is extracted, [5]: 183 e.g. broken bits of amalgam filling falling into an extraction socket unnoticed [1]
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. The amalgam is mixed by the dentist just before use.
Cracked tooth syndrome could be considered a type of dental trauma and also one of the possible causes of dental pain.One definition of cracked tooth syndrome is "a fracture plane of unknown depth and direction passing through tooth structure that, if not already involving, may progress to communicate with the pulp and/or periodontal ligament."
Crown used as part of implant restoration. Crowns are indicated to: [2] [3] [4] Replace existing crowns which have failed. Restore the form, function and appearance of badly broken down, worn or fractured teeth, where other simpler forms of restorations are unsuitable or have been found to fail clinically.
[10] [11] [12] The National Institutes of Health include a dental exam in the diagnostic protocol of celiac disease. [10] Enamel hypoplasia is believed to result from the dysfunction of ameloblasts—enamel-producing cells—either for a short period of time or throughout their lifespan. Enamel hypoplasia has a wide variety of known causes.
Amalgam is a metallic filling material composed from a mixture of mercury (from 43% to 54%) and a powdered alloy made mostly of silver, tin, zinc and copper, commonly called the amalgam alloy. [16] Amalgam does not adhere to tooth structure without the aid of cements or use of techniques which lock in the filling, using the same principles as a ...