Abstract
This paper aims to present a new method for surface treatment of open pore materials and specimens to aid and fasten the segmentation process. The study is divided into two parts. In the first part of the investigation, three materials were tested on a plastic surface under laboratory conditions: X-ray contrast dental adhesive, wax, and zinc spray. After careful observation of the results, the zinc spray was selected for the purposes of the study. In the second part, the experiment was repeated with zinc contrast layers on a single-rooted tooth in two and three layers, zinc spray on sintered glass and a multirooted tooth in three layers. Region growing method was selected for the segmentation. The selected specimens were covered with a contrast layer, scanned, and images were reconstructed and analysed. After both the scanning and reconstruction stages, success was achieved in the samples with three layers. As a next step, the volumes of the root canal and the sintered glass were calculated successfully. In conclusion, using zinc spray as an X-ray contrast coating may be a successful approach in micro-computed tomography.
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