在牙周炎的形成和发展过程中,菌斑和牙石起着重要作用。去除龈上下菌斑、牙石是牙周炎广泛采用得治疗方法。传统上是先去除龈上菌斑牙石,1～2周后再去除龈下菌斑牙石。由于时间长,不利于牙周组织炎症的消除,也增加了患者的痛苦。本研究的目的是比较一次性洁刮治与两次性洁刮治,对消除牙周炎症的区别,为临床提供参考依据。 Plaque and calculus play an important role in the formation and development of periodontitis. Removal of upper and lower gingival plaque, dental calculus is widely used in periodontitis treatment. Traditionally, the supraginggoritic plaque was first removed and the subgingival plaque was removed after 1 to 2 weeks. Due to a long time, is not conducive to the elimination of periodontal tissue inflammation, but also increased the patient's pain. The purpose of this study is to compare one-time clean scrape and double clean scrape, to eliminate the difference between periodontal inflammation, provide a reference for the clinical.