dental crown的用法和樣例：
例句
- The endodontist makes an opening in the crown of the tooth.
醫生在牙冠上做一個開口。 - Teeth have two basic parts, a root to anchor the tooth to the jaw and a crown above the gum line.
牙齒有兩個基本部份，牙根把牙齒錨定在下頜上，牙冠位於齒齦線以上。 - He cracked his crown on a microphone during a performance.
他在一次表演中在麥克風上把齒冠打破了。 - Earlier this week my dentist fitted a new crown for me.
這周早些時候我的牙醫為我裝上了新齒冠。
