In dentistry, Karat is use to specify the pure gold content of an alloy based on the parts of pure gold in 24 parts of alloy. For example, 24-karat gold is 100% pure and 18-karat gold is 75% pure gold. In 18-karat gold, there are 18 parts of gold and 6 parts of other alloy particles. Karat is generally used in dentistry where alloys are used in dental solders. Gold filings cost more than most other materials – roughly six to ten times more expensive than amalgam (silver) filings.

Note: The definitions on our web site are for reference purposes only and in no way represent any official dental advice. If you are experiencing any symptom defined by a term, you should seek the advice of your dental practitioner.

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