Tooth decay - caries

Japanese: 虫歯 - むしば

Also called dental caries. A tooth with hard tissue destroyed by the action of oral bacteria, or a disease (dental caries). The enamel is first affected, followed by the dentin, causing pain. In modern civilized countries, 80-90% of people have caries. Recently, it is particularly common among young children and school children, and in Japan, 80% of children aged 3 already have cavities. Early treatment is necessary, and the affected tooth tissue is removed and filled with cement or amalgam, and sometimes prosthetics or tooth extraction (dentures). Prevention is primarily about building strong teeth by paying attention to the nutrition of pregnant women and infants (calcium supplements, etc.), limiting sugar, stopping eating and drinking outside mealtimes, including snacks, encouraging brushing, and applying fluoride (applying 2% sodium fluoride, etc. to the surface of the teeth).
→ Related topics Implants | Periodontitis | Pulpitis | Sinusitis | Tooth extraction

Source : Heibonsha Encyclopedia About MyPedia Information

Japanese:

齲歯(うし)とも。口腔細菌の作用により硬組織の破壊された歯，またはその疾患（齲蝕(うしょく)症）。初めエナメル質，次いで象牙(ぞうげ)質も冒され，痛みを訴える。現代の文明国では80〜90％の人にみられる。最近では特に幼児・学童に多く，日本では３歳児ですでに80％が虫歯をもつ。早期治療が必要で，罹患(りかん)歯質を除去しセメント，アマルガム等を充填(じゅうてん)，ときには補綴(ほてつ)または抜歯する（義歯）。予防は妊婦や乳幼児の栄養（カルシウムの補給など）に注意して強い歯をつくることが第一で，砂糖の制限，間食も含む食事時間外の飲食をやめる，歯磨きの励行のほかフッ素塗布（２％フッ化ナトリウムなどを歯の表面に塗布）も効果がある。
→関連項目インプラント｜歯根膜炎｜歯髄炎｜蓄膿症｜抜歯

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