青少年牙周炎的确切病因尚不清楚，但通过牙周袋内培养出来的细菌证实，革兰氏阴性厌氧杆菌与本病关系密切。本文的目的是观察利用常规治疗的同时高压氧治疗的临床效果。１　材料和方法１．１　病例选择：本组病例均为本院就诊的青少年牙周炎患者，共３６例１４２颗牙齿，男１ The exact etiology of juvenile periodontitis is not clear, but bacteria that have been cultured in the periodontal pocket confirm that Gram-negative anaerobes are closely related to this disease. The purpose of this paper is to observe the clinical effects of hyperbaric oxygen therapy with conventional treatment. 1 Materials and Methods 1.1 Case Selection: This group of patients were hospitalized adolescent periodontitis patients, a total of 36 cases 142 teeth, male 1