Chronic periapical periodontitis 口根尖肉芽肿 Periapical granuloma ¤慢性根尖肷肿 Chronic periapical abscess 口腔组织病理学教研室 http://course.sdueducn/oralhistopath.html口腔组织病理学教研室 http://course.sdu.edu.cn/oralhistopath.html Chronic Periapical Periodontitis  根尖肉芽肿 Periapical granuloma  慢性根尖脓肿 Chronic periapical abscess