目的：研究使用牙支抗式牵张器行上颌骨牵张成骨术后牙髓和牙周的组织学改变。

AIM: to observe the changes in dental pulp and periodontal tissues under the application of distraction osteogenesis using tooth-attached intraoral distracter.

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目的研究使用牙附着式牵张器行上颌牙槽骨牵张成骨术后牙髓和牙周的组织学改变。

Objective to observe the changes in dental pulp and periodontal tissues under the application of maxillary tooth-bone distraction osteogenesis using tooth-attached intraoral distractor.

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目的：旨在研究SD大鼠牙周的类成牙骨质细胞、成骨细胞和牙周韧带成纤维细胞表达骨钙素和碱性磷酸酶的情况，探讨区分此三种细胞的方法。

Objective: To compare the capacity of three types of periodontal cells of SD rat expressing osteocalcin and ALP and investigate the feasibility of distinguishing them in vitro.

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And that allows the dentist to improve your gums, which avoids more pain down the road.

从而允许牙医治疗你的牙周炎，避免以后越来越痛。

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It's providing a means of deciding where the gum has decayed.

提供了决定牙周炎在哪恶化的手段。

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in order to try to figure out where there's gum disease.

以便找到牙周炎的所在。

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