关键词: 牙隐裂, 数字化技术, 吲哚菁绿, 造影剂, X射线暗场断层扫描, 数字图像相关法, 卷积神经网络, 定量光诱导荧光

Abstract: Cracked teeth are the third leading cause after dental caries and periodontal disease of posterior tooth loss in adults. Because the precision of traditional testing technology and testing instruments is not good，it is easy to have missed diagnosis and misdiagnosis，which results in the miss of the best time for treatment. Early detection and early diagnosis are particularly critical for the preservation of cracked teeth. With the wide application of digital technology in dentistry，the diagnosis of cracked teeth has been guaranteed by new technologies. The article provides a review of the research progress on the application of digital techniques in the detection of cracked teeth, including indocyanine green-assisted near-infrared light imaging，contrast-enhanced subconical CT imaging，X-ray dark-field tomography imaging，digital image correlation，artificial intelligence technology-assisted imaging，and quantitative light-induced fluorescence technique. The advantages and disadvantages of the above techniques，the current status of their clinical application，and their future prospects are briefly described to provide a reference for the future direction of related research.

Key words: cracked tooth, digital technology, indocyanine green, contrast medium, X-ray dark-field tomography, digital image correlation, convolutional neural networks, quantitative light-induced fluorescence