常見例句雙語例句AIM:To observe the changes in dental pulp and periodontal tissues under the application of distraction osteogenesis using tooth-attached intraoral distracter.目的：研究使用牙支抗式牽張器行上頜骨牽張成骨術後牙髓和牙周的組織學改變。Methods 15 Mongrel dogs were subjected to be lengthened of the unilateral or bilateral mandibles using the home made type MS 1 mandibular distracter, and the regular X ray examinations were made.方法採用自行研制的MS 1型內(nèi)置式下頜骨骨牽引延長器，對15衹犬分別進行下頜骨單側及雙側骨牽引延長實騐，X線定期檢查。Objective To introduce the new type of MS - 1 internal mandibular distracter and its applications and to investigate the advantage or disadvantage of the device through an experimental study in dogs.目的介紹自行開發(fā)的內(nèi)置式下頜骨骨牽引延長器，探討其在動物實騐中的應用方法與可行性。d.wanfangdata.com.cn 返回 distracter