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Back teeth showing fissure system. Dental caries is an upset of the balance between loss and gain of minerals from a tooth surface. [3] The loss of minerals from the teeth occurs from the bacteria within the mouth, fermenting foods and producing acids, whereas the tooth gains minerals from our saliva and fluoride that is present within the mouth. [3]
Pure silicone grease is widely used by the plumbing industry in faucets and seals, as well as in dental equipment. This is because it is not an ingestion hazard [ 3 ] [ better source needed ] . Electrical utilities use silicone grease to lubricate separable elbows on lines that must endure high temperatures.
Two typical examples: Left - Krytox, a fluoroether-based grease; Right - a silicone-based high vacuum grease by Dow Corning. Apiezon, silicone-based, and fluoroether-based greases are all used commonly in laboratories for lubricating stopcocks and ground glass joints. The grease helps to prevent joints from "freezing", as well as ensuring high ...
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The material is also more technique-forgiving compared to composite restorations used for that purpose. Dental amalgam is also radiopaque which is beneficial for differentiating the material between tooth tissues on radiographs for diagnosing secondary caries. The cost of the restoration is typically cheaper than composite restorations.
Crowns are used to improve the strength or appearance of teeth and to halt deterioration. While beneficial to dental health, the procedure and materials can be costly. The most common method of crowning a tooth involves taking a dental impression of a tooth prepared by a dentist, then fabricating the crown outside of the mouth. The crown can ...
A woman in Germany was sentenced to life in prison for murdering her "doppelgänger" in 2022. The victim's family in Algeria found out about the verdict three weeks later.
The ABC sitcom originally starred Michael J. Fox, who left the show after four seasons following his Parkinson's diagnosis and was replaced by Charlie Sheen