Abstract
Recent progress in imaging and image processing techniques has provided for improvements in odontological research in a variety of aspects. Thus, the presented method has been developed precisely in order to assess metrically 3D reconstructions of teeth. Rapidly and accurately obtained data of a wide range and appropriate density are sufficient enough for morphometric studies rather than tooth size assessments which are inherent to conventional techniques. The main contributions providing for holistic and objective morphometric analysis of teeth are the following: (1) interpretation of basic dental morphological features; (2) automated of orientational coordinate system setup based on tooth surface analysis; (3) new tooth morphometric parameters which could not be obtained through application of conventional odontometric techniques; (4) methodological novelty for automated odontomorphometric analysis pipeline. Application of tomographic imaging, which has been used for obtaining 3D models, expands the proposed method potential further through providing detailed and comprehensive reconstructions of teeth. The current study was conducted on unique material from the archaeological site of Sunghir related to the Upper Palaeolithic period. Metric assessments of external and internal morphological layers of teeth were performed in common orientation and sectioning. The proposed technique allowed more profound analysis of Sunghirian teeth which date back to the times of modern human morphology formation.
Highlights
Studies of dental morphology have a long history as well as are being conducted in different scientific or practical disciplines in our days
The proposed technique has been developed for morphometric analysis of teeth
It is based on the presented interpretation of dental morphology, which forms the direction for fully automated pipeline including stages of orientation of coordinate system for the teeth studied, subsequent sectioning according to the obtained orientation and further extraction of morphometric parameters
Summary
Studies of dental morphology have a long history as well as are being conducted in different scientific or practical disciplines in our days. Study approaches and applications of dental morphological data differ in dentistry and physical anthropology. Dentists as well as dental technicians on a daily basis keep an eye on morphology of teeth with regard to their closure and to interaction of opposing dental arches. Such a difference has played a significant part in the process of development of the presented method, which has originated from research conducted for studies in dentistry
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