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. 2021 Sep 13;7:e620. doi: 10.7717/peerj-cs.620

Table 1. Number of articles categorized based on imaging modalities.

Image modalities Number of articles published
Periapical X-ray images 30
Bitewing X-ray images 11
Panoramic X-ray images 39
CBCT or CT images 13
Photographic color images 06
Hybrid dataset 19
Image dataset not defined 07