An in vitro study evaluating ferrule effects on fracture resistance of pulpless teeth with flared canals restored with different post-and-core systems是什么意思_An in vitro study evaluating ferrule effects on fracture resistance of pulpless teeth with flared canals restored with different post-and-core systems在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句