目的观察Ⅱ°根分叉病变患者引导组织再生治疗术(guided tissue regeneration, GTR)前后龈沟液(gingival crevicular fluid, GCF)......

目的观察Ⅱ°根分叉病变患者引导组织再生治疗术(guided tissue regeneration, GTR)前后龈沟液(gingival crevicular fluid, GCF)......