常見例句雙語(yǔ)例句Methods A total of 468 seamen with 2 impacted third molar were studied. The 2 teeth were extracted separately in 2 mouths.方法對(duì)4 6 8例需要拔除雙側(cè)下頜阻生智齒的航海人員在無(wú)拔牙禁忌証的情況下分次進(jìn)行拔牙手術(shù)(相隔時(shí)間2個(gè)月以上)。Objective To establish the equations between the third molar and the other teeth in order to predict the third molar coronal size.目的建立第三磨牙與其他牙冠寬的方程,以預(yù)測(cè)未萌第三磨牙冠寬。The teeth in the non-eruption group were further divided into impact group and congenital absent group according to the third molar germ presence testified by X ray.第三磨牙未萌出者經(jīng)X線片証實(shí),按有無(wú)第三磨牙牙胚,將其分別歸爲(wèi)埋伏阻生組或先天缺失組。 返回 third molar teeth