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The condition was originally proposed in 1878, [50] and became well known in Sweden during the 1970s and 80s, because of a campaign to educate about and replace oral amalgam fillings with mercury with other compounds such as ceramic or polymer restorations. [45]
Versatility: Composite fillings can be used to repair chipped, broken or worn teeth [18] which would not be repairable using amalgam fillings. Repairability: In many cases of minor damage to a composite filling, the damage can be easily repaired by adding additional composite. An amalgam filling might require complete replacement.
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.
Inlays are a type of indirect restoration (filling) that is used to restore extensively damaged or decayed teeth. When compared to conventional (direct) fillings, inlays have several advantages: Inlays are extremely strong and durable: well-made gold inlays, in particular, have exceptional longevity with proper care [ 8 ]
To fabricate an amalgam filling, the dentist uses a mixing device to blend roughly equal parts (by mass) of shavings of a silver-base alloy with mercury until the shavings are thoroughly wetted. The silver alloy is typically 40–70% Ag, 25-29% Sn, 2–40% Cu and 0–2% Zn (when the alloy is formulated Zn is a scavenger and is mostly consumed ...
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 ...
Hal Alan Huggins (1937 – November 29, 2014) was an American alternative dentistry advocate and campaigner against the use of dental amalgam fillings and other dental therapies that he believed to be unsafe. [1] [2] Huggins began to promote his ideas in the 1970s and played a major role in generating controversy over the use of amalgam. [3]
Dental fillings are often used to fill cavities or holes after root canal treatment. [6] They can also be used to restore worn teeth or fill gaps between teeth. [7] Fillings can be made of amalgam (a metal alloy) or materials such as composite resin and glass ionomer. [8] [9]
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