Abstract
Dental caries occurs from the interaction between oral bacteria and sugars, generating acids that damage teeth over time. The importance of X-ray images for detecting oral problems is undeniable in dentistry. With technological advances, it is feasible to identify these lesions using techniques such as deep learning, machine learning, and image processing. Therefore, the survey and systematization of these methods are essential to determining the main computational approaches for identifying caries in X-ray images. In this systematic review, we investigated the primary computational methods used for classifying, detecting, and segmenting caries in X-ray images. Following the PRISMA methodology, we selected relevant studies and analyzed their methods, strengths, limitations, imaging modalities, evaluation metrics, datasets, and classification techniques. The review encompassed 42 studies retrieved from the Science Direct, IEEExplore, ACM Digital, and PubMed databases from the Computer Science and Health areas. The results indicate that 12% of the included articles utilized public datasets, with deep learning being the predominant approach, accounting for 69% of the studies. The majority of these studies (76%) focused on classifying dental caries, either in binary or multiclass classification. Panoramic imaging was the most commonly used radiographic modality, representing 29% of the cases studied. Overall, our systematic review provides a comprehensive overview of the computational methods employed in identifying caries in radiographic images and highlights trends, patterns, and challenges in this research field.
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Data Availability
The data in this systematic review, like the search protocol, are available upon reasonable request to the corresponding author.
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Funding
This work is supported in part by the Brazilian National Council for Scientific and Technological Development (CNPq grant number 307710/2022-0), in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) - Finance Code 001, Brazil, and Itaú Unibanco S.A. through the PBI program of the Centro de Ciência de Dados (C2D) of Escola Politécnica at Universidade de São Paulo, and São Paulo Research Foundation (FAPESP) – National Institute of Science and Technology – Medicine Assisted by Scientific Computing (INCT-MACC) – grant 2014/50889-7.
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Zanini, L.G.K., Rubira-Bullen, I.R.F. & Nunes, F.d.L.d.S. A Systematic Review on Caries Detection, Classification, and Segmentation from X-Ray Images: Methods, Datasets, Evaluation, and Open Opportunities. J Digit Imaging. Inform. med. (2024). https://doi.org/10.1007/s10278-024-01054-5
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DOI: https://doi.org/10.1007/s10278-024-01054-5