This involves rebuilding the tooth crown using synthetic proteins, which are similar, but not quite identical, to human enamel.
这包括使用合成蛋白质重建牙冠，这种蛋白质与人类牙釉质相似，但并不完全相同。
Tooth crown
原声例句
经济学人-科技
VOA Standard 2014年12月合集
It used to be that the common but complicated procedure to get a tooth crown required several visits to the dentist's office.
以往患者要去牙医诊所多次才能完成像安装牙冠这样普通但复杂的手术。
中文百科
牙冠 (牙齿) Crown (tooth)
（重定向自Tooth crown）
牙冠又称齿冠，是指牙齿在牙龈外面的部位。
英语百科
Crown (tooth) 牙冠 (牙齿)
（重定向自Tooth crown）
In dentistry, crown refers to the anatomical area of teeth, usually covered by enamel. The crown is usually visible in the mouth after developing below the gingiva and then erupting into place. If part of the tooth gets chipped or broken, a dentist can apply an artificial crown. There are various materials that can be used including a type of cement or stainless steel. The cement crowns look like regular teeth while the stainless steel crowns are silver or gold.
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