Chronic Gingivitis [CLINICAL FEATURES] 炎症水肿型 Acient House utbhmthz Ltt Department of Oral Pathology, Shandong University http://course.sduedu.cn/oralhistopath.htmlDepartment of Oral Pathology, Shandong University http://course.sdu.edu.cn/oralhistopath.html 10 [CLINICAL FEATURES] 炎症水肿型 Chronic Gingivitis