凸底桩冠

【医】 Brown crown

凸的英语翻译：

protruding
【医】 convexity; cyrto-; prominence; prominentia

底的英语翻译：

a copy kept as a record; base; bottom; end; fundus; the truth of a matter
【医】 base; basement; bases; basi-; basio-; basis; batho-; bathy-; fimdi
floor; fundus; pavimentum; solum

桩冠的英语翻译：

【医】 Logan crown; post crown