Pulp and periapical diseases are common and frequently occurring diseases of which diagnosis and treatment must be dealt with by the dental clinicians. The diagnostic techniques of these diseases include evaluation of pulp vitality, measurement of pulp blood circulation and analysis and judgment of root canal anatomy. With the continuous emergence of digital and imaging technologies, the correct application of these technologies in clinic will help clinicians improve their abilities in diagnosis and treatment of related diseases. The present article summarizes and reviews the progress of assistant technology for diagnosing dental pulp and periapical diseases in recent years and puts forward some suggestions for its application.牙髓及根尖周疾病是口腔临床诊疗中的常见病和多发病,这类疾病的诊断技术涵盖了牙髓活力状态检测、牙髓血运状况测定以及根管解剖形态分析和判断。数字化技术和影像技术不断涌现并快速发展,将这些技术正确应用于牙体牙髓临床诊疗中,将有助于提高口腔临床医师对相关疾病的正确诊断率。本文就近年牙髓诊断辅助技术的进展作一总结、回顾,并提出应用建议。.