Abstract: Radiographic imaging is an important aid in the diagnosis of periodontal and peri-implant diseases. With the development of digital technology，digital radiography makes the diagnosis of periodontal disease and peri-implant disease more and more rapid and accurate，and plays an increasingly important role in the treatment planning，execution and evaluation. This review summarized the application and progress of digital radiography in the periodontal clinical diagnosis and treatment.

Key words: digital radiography；cone-beam computed tomography, CBCT；periodontal disease；peri-implant disease

摘要： 影像技术是牙周病和种植体周围病的重要辅助检查手段，随着数字化技术的发展，数字化影像技术不仅使牙周病和种植体周围病的检查和诊断越来越快捷、准确，而且在治疗计划的设计和疗效评价中扮演着越来越重要的角色。文章将对数字化影像技术在牙周临床诊治中的应用及进展进行简要介绍。

关键词: 数字化影像, 锥形束CT, 牙周病, 种植体周围病