enamel - Hard outer layer of a tooth., toothpaste - cream used to clean and protect teeth., cavity - a hole in a tooth caused by decay., bacteria - tiny living things that cause plaque., foam - bubbles formed by a substance like toothpaste., flouride - ingredient in toothpaste that strengthens teeth., abrasive - ingredient in toothpaste that helps scrub teeth clean., sodium - A substance in toothpaste to clean teeth.,

リーダーボード

表示スタイル

オプション

テンプレートを切り替える

自動保存: を復元しますか?