Journal
MOLECULES
Volume 27, Issue 13, Pages -Publisher
MDPI
DOI: 10.3390/molecules27134035
Keywords
dental pattern; forensic dentistry; forensic radiology; forensic chemistry; machine learning; identification; dissolution; sulfuric acid; dentition; teeth; acid degradation
Funding
- KEGA grant agency of the Ministry of Education, Science, Research, and Sport of the Slovak Republic [081UK-4/2021]
- EU [0829090573]
- MVTS COST action Multi-Modal Imaging of Forensic Science Evidence (MULTI-FORESEE) [CA16101]
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This paper introduces a new method for three-dimensional reconstruction of dental patterns and human remains identification. Using modern methods such as micro-computed tomography, cone-beam computer tomography, and attenuated total reflection, along with Fourier transform infrared spectroscopy and artificial intelligence convolutional neural network algorithms, the study examines the morphology of teeth, bone, and dental materials under the impact of sulfuric acid.
(1) Teeth, in humans, represent the most resilient tissues. However, exposure to concentrated acids might lead to their dissolving, thus making human identification difficult. Teeth often contain dental restorations from materials that are even more resilient to acid impact. This paper aims to introduce a novel method for the 3D reconstruction of dental patterns as a crucial step for the digital identification of dental records. (2) With a combination of modern methods, including micro-computed tomography, cone-beam computer tomography, and attenuated total reflection, in conjunction with Fourier transform infrared spectroscopy and artificial intelligence convolutional neural network algorithms, this paper presents a method for 3D-dental-pattern reconstruction, and human remains identification. Our research studies the morphology of teeth, bone, and dental materials (amalgam, composite, glass-ionomer cement) under different periods of exposure to 75% sulfuric acid. (3) Our results reveal a significant volume loss in bone, enamel, dentine, as well as glass-ionomer cement. The results also reveal a significant resistance by the composite and amalgam dental materials to the impact of sulfuric acid, thus serving as strong parts in the dental-pattern mosaic. This paper also probably introduces the first successful artificial intelligence application in automated-forensic-CBCT segmentation. (4) Interdisciplinary cooperation, utilizing the mentioned technologies, can solve the problem of human remains identification with a 3D reconstruction of dental patterns and their 2D projections over existing ante-mortem records.
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