3D teeth reconstruction from X-ray is important for dental diagnosis and many clinical operations. However, no existing work has explored the reconstruction of teeth for a whole cavity from a single panoramic radiograph. Different from single object reconstruction from photos, this task has the unique challenge of constructing multiple objects at high resolutions. To conquer this task, we develop a novel ConvNet X2Teeth that decomposes the task into teeth localization and single-shape estimation. We also introduce a patch-based training strategy, such that X2Teeth can be end-to-end trained for optimal performance. Extensive experiments show that our method can successfully estimate the 3D structure of the cavity and reflect the details for each tooth. Moreover, X2Teeth achieves a reconstruction IoU of 0.681, which significantly outperforms the encoder-decoder method by 1.71Xandtheretrieval−basedmethodby1.52X. Our method can also be promising for other multi-anatomy 3D reconstruction tasks.
@article{arxiv.2108.13004,
title = {X2Teeth: 3D Teeth Reconstruction from a Single Panoramic Radiograph},
author = {Yuan Liang and Weinan Song and Jiawei Yang and Liang Qiu and Kun Wang and Lei He},
journal= {arXiv preprint arXiv:2108.13004},
year = {2021}
}