Journal
PEERJ COMPUTER SCIENCE
Volume 7, Issue -, Pages -Publisher
PEERJ INC
DOI: 10.7717/peerj-cs.620
Keywords
Dental X-ray; Machine learning; Deep learning; Convolutional neural networks; Dental image segmentation
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Dental imaging plays a crucial role in diagnosis and treatment planning, but the analysis process is challenging. Automation is essential in order to ensure accurate diagnosis and improved treatment planning.
In dentistry, practitioners interpret various dental X-ray imaging modalities to identify tooth-related problems, abnormalities, or teeth structure changes. Another aspect of dental imaging is that it can be helpful in the field of biometrics. Human dental image analysis is a challenging and time-consuming process due to the unspecified and uneven structures of various teeth, and hence the manual investigation of dental abnormalities is at par excellence. However, automation in the domain of dental image segmentation and examination is essentially the need of the hour in order to ensure error-free diagnosis and better treatment planning. In this article, we have provided a comprehensive survey of dental image segmentation and analysis by investigating more than 130 research works conducted through various dental imaging modalities, such as various modes of X-ray, CT (Computed Tomography), CBCT (Cone Beam Computed Tomography), etc. Overall state-ofthe-art research works have been classified into three major categories, i.e., image processing, machine learning, and deep learning approaches, and their respective advantages and limitations are identified and discussed. The survey presents extensive details of the state-of-the-art methods, including image modalities, preprocessing applied for image enhancement, performance measures, and datasets utilized.
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