INTERFERENCE OF ARTIFACTS FROM METAL DENTAL CROWNS WITH IMAGE SEGMENTATION ON CBCT IN OCCLUSION AND NON-OCCLUSION.

Autor: dos SANTOS, Marcos Antônio Lima, SANTOS, Aline Piruna Martins, TAKESHITA, Wilton Mitsunari, SANTANA, Lucas Alves da Mota, BARROS, Francisco Barbara Abreu, SAPATA, Vítor Marques, CAVALCANTI, Marcelo Gusmão Paraíso
Zdroj: Oral Surgery, Oral Medicine, Oral Pathology & Oral Radiology; Jun2024, Vol. 137 Issue 6, pe306-e306, 1p
Abstrakt: To evaluate the interference of artifacts from metal dental restorations with superimposed DICOM and STL files with automatic segmentation using CBCT planning software and compare this interference with image acquisition in occlusion and non-occlusion. CBCT scan files in DICOM format were acquired following intraoral scans performed in 97 patients. The DICOM files were selected and superimposed on their corresponding STL file based on four fixed anatomical positions in the 3D arches to standardize the superposition. The overall results showed a mean of 0.489 mm, with a maximum standard deviation of ±1,353 mm. The analysis of variance showed a significant influence regarding the number of metal restorations on the deviations of models in the horizontal/anterior position (p=0.009). Group 1 showed a statistically significant difference from group 2. Group 0 did not statistically significantly differ from groups 1 and 2. When comparing occlusion and non-occlusion, VP and VA positions showed a statistically significant difference. Whether the patient is in occlusion or not, metal artifacts did not interfere with CBCT planning software for superimposed images in vertical analyses. However, horizontally, there was an inferred discrepancy in the adjustments to DICOM-STL segmentation. [ABSTRACT FROM AUTHOR]
Databáze: Supplemental Index
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