noun
dental plaque
Refers specifically to the soft, sticky film of bacteria that forms on teeth. Common in dental and everyday health contexts.
歯垢を放置すると虫歯や歯周病の原因になります。
If you leave dental plaque untreated, it can cause cavities and gum disease.
歯垢は歯ブラシでしっかり落としましょう。
Remove dental plaque thoroughly with a toothbrush.