Jisho

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象牙質知覚過敏症
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Wikipedia definition
1. Dentine hypersensitivity​Dentine hypersensitivity is sensation felt when the nerves inside the dentin of the teeth are exposed to the environment. The sensation can range from irritation all the way to intense, shooting pain. This sensitivity can be caused by several factors, including wear, decaying teeth or exposed tooth roots. Dentine contains many thousands of microscopic tubular structures that radiate outwards from the pulp; these dentinal tubules are typically 0.5-2 micrometres in diameter.
Read “Dentine hypersensitivity” on English Wikipedia
Read “象牙質知覚過敏症” on Japanese Wikipedia
Read “Dentine hypersensitivity” on DBpedia

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