英语语法分析

Objective To observe the therapeutic effect of Flagyl compound on acute periapical abscess.

目的观察甲硝唑复合剂治疗急性根尖周脓肿的疗效。

Root canal therapy is a fundamental method of treating pulpal and periapical diseases nowadays.

根管治疗是现今牙髓病和根尖周病的基本治疗方法。

Objective: To observe effects of replantation on treatment of serious periapical periodontitis of molar.

前言：目的：观察意向再植术治疗磨牙根尖周炎的临床疗效。