@article{MTMT:35528197, title = {Clinical precision of Aoralscan 3 and Emerald S on the palatal and dentition areas: evaluation for forensic applications}, url = {https://m2.mtmt.hu/api/publication/35528197}, author = {Mikolicz, Ákos and Simon, Botond and Lőrincz, Gergely and Vág, János}, doi = {10.1016/j.jdent.2024.105455}, journal-iso = {J DENTISTRY}, journal = {JOURNAL OF DENTISTRY}, volume = {153}, unique-id = {35528197}, issn = {0300-5712}, abstract = {Objectives To compare the precision (repeatability and intermediate precision) of palatal and dentition scans taken with two different intraoral scanners. Methods The maxillary arch of 23 individuals was scanned three times using the Aoralscan 3 (Shining 3D) and Emerald S (Planmeca), resulting in 6 scans per individual. The scans were segmented in Meshmixer into palatal and dentition areas. Each replicate of an individual was compared within the specific scanner (repeatability) and to the corresponding replicate of the other scanner (intermediate precision). The scans were aligned using the iterative closest-point algorithm in the Zeiss Inspect software. The mean absolute distance between the aligned surfaces was calculated. Statistical comparisons were made using Friedman's two-way analysis of variance. Data are presented in median (quartile 1; quartile 3) form. Results No significant difference in repeatability was found between Emerald S and Aoralscan 3 for the palate (26 µm [22,26] vs. 22 µm [18,26]) and for dentition (37 µm [31,44] vs. 38 µm [35,48]. Intermediate precision of the palate (32 µm [26,43]) and dentition (72 µm [63; 80]) was significantly lower than the repeatability of Emerald S (p < 0.05, p < 0.001) and of Aorlascan 3 (p < 0.001, p < 0.001). Both precision types of both scanners were significantly lower for the dentition than for the palate (p < 0.001). Conclusion The precision of the dentition scan is lower than that of the palate. The precision of the Aoralscan 3 is similar to that of the Emerald S scanner. Clinical significance Novel intraoral scanners could be used with high precision for palatal soft tissue scans, expanding their clinical utility. Aligning scans from two different IOSs still has high precision, facilitating the interchangeable use of intraoral scanners for orthodontic, prosthetic, and forensic examinations.}, keywords = {PRECISION; dentition; palate; Forensic; digital impression; intraoral scanner}, year = {2025}, eissn = {1879-176X}, orcid-numbers = {Mikolicz, Ákos/0000-0002-3024-3738; Simon, Botond/0000-0003-1851-1688; Vág, János/0000-0002-6183-7598} } @article{MTMT:35592884, title = {Development of an experimental model for assessment of palatal tissue decomposition by intraoral scanner}, url = {https://m2.mtmt.hu/api/publication/35592884}, author = {Mikó, Sándor and Shahbazi, Arvin Irani and Pellei, Dalma and Simon, Botond and Vág, János}, doi = {10.1016/j.forsciint.2024.112303}, journal-iso = {FORENSIC SCI INT}, journal = {FORENSIC SCIENCE INTERNATIONAL}, volume = {366}, unique-id = {35592884}, issn = {0379-0738}, abstract = {Intraoral scanning of the palate is considered reliable for human identification; however, its accuracy on postmortem tissue remains dubious. This study aimed to investigate the effect of tissue decomposition on the precision of the intraoral scanner and the deviation of the scan. Ten fresh lamb (Ovies aries) maxillae were either unwashed or washed, selected, and stored at 20.5 °C and 80% humidity for 20 days. Each palate was scanned three times a day with an Emerald S intraoral scanner. The anterior rugae area was cropped for analysis. The three scans of each day for each lamb were digitally aligned using the iterative closest point algorithm to ensure precision. The day one mesh was compared to each subsequent day to assess the postmortem scan deterioration, and a quadratic curve was fitted to the data. The mesh from different lambs was compared on day one to calculate the differences between the lambs. The length, location, and value of the largest curvatures of five randomly chosen rugae on each specimen were determined. A supervised machine learning procedure using linear discriminant classification assessed the specificity and sensitivity of singular ruga discrimination. Precision was significantly lower (p < 0.001) in the unwashed group (0.025mm) compared to the washed group (0.013mm), but the postmortem days had no effect. The deviation curve for the unwashed samples had a significantly higher quadratic term (p < 0.05) compared to the washed sample, indicating a slightly greater deterioration after day 11. The least difference between lambs was 0.484mm. The deterioration curves crossed the minimum value on day 6 in both groups. The sensitivity of rugae detection was 0.89 on day one and decreased to 0.69 on day 20; the specificity ranged from 0.59 to 0.66. Intraoral scanning is an accurate approach for postmortem palatal imaging. Superimposition of the anterior palatal scan can accurately distinguish between lambs for up to six days. Nevertheless, deteriorated rugae can still be distinguished with moderate accuracy for up to 20 days.}, keywords = {IDENTIFICATION; palate; Postmortem; Forensic dentistry; intraoral scanner; tissue decomposition}, year = {2025}, eissn = {1872-6283}, orcid-numbers = {Mikó, Sándor/0000-0001-8520-9855; Shahbazi, Arvin Irani/0000-0003-3027-4582; Simon, Botond/0000-0003-1851-1688; Vág, János/0000-0002-6183-7598} } @inbook{MTMT:35748374, title = {Kiaknázatlan lehetőségek a digitalizált világunkban, avagy mikor fogjuk megkönnyíteni a saját életünket?}, url = {https://m2.mtmt.hu/api/publication/35748374}, author = {Simon, Botond}, booktitle = {Angyal 60.}, unique-id = {35748374}, year = {2025}, pages = {112-114}, orcid-numbers = {Simon, Botond/0000-0003-1851-1688} } @article{MTMT:36051646, title = {A mathematical model for scientifically defining the class characteristics of the human anterior maxilla—Part 1: The dental arch}, url = {https://m2.mtmt.hu/api/publication/36051646}, author = {Aschheim, Kenneth and Vág, János and Simon, Botond}, doi = {10.1111/1556-4029.70006}, journal-iso = {J FORENSIC SCI}, journal = {JOURNAL OF FORENSIC SCIENCES}, volume = {70}, unique-id = {36051646}, issn = {0022-1198}, abstract = {Abstract Bitemark recognition reliability in forensics has been criticized for lacking objectivity and empirical support. Despite doubts about classifying these injuries as bitemarks, pattern injuries must still be legally documented and analyzed. Forensic odontology can benefit from aesthetic dentistry by adopting metric analysis methods to define human dentition and objectively assess whether a pattern resembles a dental arch. In addition, past research on the challenges of individualizing bitemarks has inadvertently also defined these class characteristics. Although objectively quantifying these metrics is critical, prospective research must prove their uniqueness to the human species as well as their dependable transference to substrates such as skin. To explore and qualitatively define the mathematical characteristics of variations in the maxillary dental arch, an under-researched aspect of forensic odontology, two scanners collected digital maxilla scans from 100 participants (50% male, 50% female). The arch shape's intercuspal distance and parabolic curvature (y?=?ax2?+?bx?+?c) were defined, recorded, and analyzed. The mean intercuspal distance of maxillary canines was 33.8?mm (SD: 2.25?mm, 29.0?39.6?mm). The mean fitted curve created by Linear Mixed Model (LMM) for Quadratic Regression Analysis was a mean of y-meanTotal?=?0.040x2???0.0008x???1.581, an upper limit of y-higherTotal?=?0.047x2???0.00039x?+?2.593, and a lower limit of y-lowerTotal?=?0.032x2???0.0012x???5.754. In addition, sexual dimorphism using quadratic analysis was not established. Quadratic regression analysis establishes an objective framework for characterizing the maxillary dental arch. Results indicate that the arches of human dentitions share class characteristics within a narrow range, and can also offer a framework for the assessment of dentitions across species.}, keywords = {Intraoral scan; Class characteristics; bitemark; dental arch morphology; human maxillary arch; quadratic equation modeling}, year = {2025}, eissn = {1556-4029}, pages = {1074-1088}, orcid-numbers = {Vág, János/0000-0002-6183-7598; Simon, Botond/0000-0003-1851-1688} } @article{MTMT:35576393, title = {Human identification via digital palatal scans: a machine learning validation pilot study}, url = {https://m2.mtmt.hu/api/publication/35576393}, author = {Mikolicz, Ákos and Simon, Botond and Roudgari, Aida and Shahbazi, Arvin Irani and Vág, János}, doi = {10.1186/s12903-024-05162-0}, journal-iso = {BMC ORAL HEALTH}, journal = {BMC ORAL HEALTH}, volume = {24}, unique-id = {35576393}, issn = {1472-6831}, abstract = {This study aims to validate a machine learning algorithm previously developed in a training population on a different randomly chosen population (i.e., test set). The discrimination potential of the palatal intraoral scan-based geometric and superimposition methods was evaluated.}, year = {2024}, eissn = {1472-6831}, orcid-numbers = {Mikolicz, Ákos/0000-0002-3024-3738; Simon, Botond/0000-0003-1851-1688; Shahbazi, Arvin Irani/0000-0003-3027-4582; Vág, János/0000-0002-6183-7598} } @article{MTMT:35657459, title = {Correction to: Human identification via digital palatal scans: a machine learning validation pilot study (BMC Oral Health, (2024), 24, 1, (1381), 10.1186/s12903-024-05162-0)}, url = {https://m2.mtmt.hu/api/publication/35657459}, author = {Mikolicz, Ákos and Simon, Botond and Roudgari, A. and Shahbazi, Arvin Irani and Vág, János}, doi = {10.1186/s12903-024-05234-1}, journal-iso = {BMC ORAL HEALTH}, journal = {BMC ORAL HEALTH}, volume = {24}, unique-id = {35657459}, issn = {1472-6831}, year = {2024}, eissn = {1472-6831}, orcid-numbers = {Mikolicz, Ákos/0000-0002-3024-3738; Simon, Botond/0000-0003-1851-1688; Shahbazi, Arvin Irani/0000-0003-3027-4582; Vág, János/0000-0002-6183-7598} } @article{MTMT:33542220, title = {In vitro comparison of five desktop scanners and an industrial scanner in the evaluation of an intraoral scanner accuracy}, url = {https://m2.mtmt.hu/api/publication/33542220}, author = {Borbola, Dániel and Berkei, Gábor and Simon, Botond and Romanszky, Laszlo and Sersli, Gyorgy and DeFee, Michael and Renne, Walter and Mangano, Francesco and Vág, János}, doi = {10.1016/j.jdent.2022.104391}, journal-iso = {J DENTISTRY}, journal = {JOURNAL OF DENTISTRY}, volume = {129}, unique-id = {33542220}, issn = {0300-5712}, abstract = {Objectives The study aimed to compare the precision of ATOS industrial, 3ShapeE4, MeditT710, CeramillMap400, CSNeo, PlanScanLab desktop, and Mediti700 intraoral scanners. The second aim was to compare the trueness of Mediti700 assessed by ATOS and desktop scanners. Methods Four plastic dentate models with 7-12 abutments prepared for complete arch fixed dentures were scanned by all scanners three times. Scans were segmented to retain only the abutments. The precision and trueness were calculated by superimposing scans with the best-fit algorithm. The mean absolute distance was calculated between the scan surfaces. The precision was calculated based on the 12 repeats. Trueness was evaluated by superimposing the desktop and IOS scans to the industrial scans. IOS was also aligned with the two most accurate desktop scanners. Results The precision of 3ShapeE4 and MeditT710 (3-4μm) was only slightly lower than that of ATOS (1.7μm, p<0.001) and significantly higher than CeramillMap400, CSNeo, and PlanScanLab (6-10 μm, p<0.001). The trueness was the highest for the 3Shape E4 (12-13 μm) and Medit T710 (13-16 μm) without significant difference. They were significantly better than CeramillMap400, CSNeo, and PlanScanLab (22-31μm, p<0.001). Accordingly, the Mediti700 trueness was evaluated by ATOS, 3ShapeE4, and MeditT710. The three trueness was not significantly different; ATOS (23-26 μm), 3Shape E4 (22-25 μm), and Medit T710 (20-23 μm). Conclusions All desktop scanners had the acceptable accuracy required for a complete arch-fixed prosthesis. The 3Shape E4 and the Medit T710 might be used as reference scanners for studying IOS accuracy. Clinical Significance 3ShapeE4, MeditT710, CeramillMap400, CSNeo, PlanScanLab laboratory, and Mediti700 intraoral scanners can be used for the prosthetic workflow in a complete arch. 3ShapeE4 and the MeditT710 could be used to test the accuracy of various phases of a laboratory workflow, replacing the industrial scanners.}, keywords = {PRECISION; accuracy; Trueness; desktop scanner; complete arch}, year = {2023}, eissn = {1879-176X}, orcid-numbers = {Simon, Botond/0000-0003-1851-1688; Vág, János/0000-0002-6183-7598} } @article{MTMT:33842795, title = {Palatal asymmetry assessed by intraoral scans: effects of sex, orthodontic treatment, and twinning. A retrospective cohort study}, url = {https://m2.mtmt.hu/api/publication/33842795}, author = {Simon, Botond and Mangano, Francesco Guido and Pál, Adrienn and Simon, István and Pellei, Dalma and Shahbazi, Arvin Irani and Vág, János}, doi = {10.1186/s12903-023-02993-1}, journal-iso = {BMC ORAL HEALTH}, journal = {BMC ORAL HEALTH}, volume = {23}, unique-id = {33842795}, issn = {1472-6831}, abstract = {Symmetry is critical in perceived attractiveness, especially in female faces. The palate determines the teeth’ alignment and supports facial soft tissues. Therefore, the study aimed to assess the effects of sex, orthodontic treatment, age, and heritability on the directional, anti-, and fluctuational asymmetry in the digital palatal model.}, year = {2023}, eissn = {1472-6831}, orcid-numbers = {Simon, Botond/0000-0003-1851-1688; Shahbazi, Arvin Irani/0000-0003-3027-4582; Vág, János/0000-0002-6183-7598} } @article{MTMT:33869664, title = {Reproducibility of the digital palate in forensic investigations: a two-year retrospective cohort study of twins}, url = {https://m2.mtmt.hu/api/publication/33869664}, author = {Mikolicz, Ákos and Simon, Botond and Gáspár, Orsolya and Shahbazi, Arvin Irani and Vág, János}, doi = {10.1016/j.jdent.2023.104562}, journal-iso = {J DENTISTRY}, journal = {JOURNAL OF DENTISTRY}, volume = {135}, unique-id = {33869664}, issn = {0300-5712}, abstract = {Objectives The palatal scans of the same individuals were compared after two years to assess forensic reproducibility. The effect of orthodontic treatment, the comparison area and the digitization approach were investigated. Methods The palate was scanned in 20 pairs of monozygotic twins by an intraoral scanner (IOS) three times to assess repeatability. They were rescanned two years later by two different IOSs. An elastic impression and a plaster model were also made and scanned by a laboratory scanner (indirect digitization). Mean absolute distance between scans was compared after best-fit alignment. Scans from the two sessions were compared to evaluate the combined effect of aging, orthodontic treatment and different digitization methods (forensic reproducibility). Additionally, the scans of different digitization methods from the second session were compared (technical reproducibility). The between-siblings difference was compared in the two sessions to evaluate the effect of aging on palatal morphology. Results The anterior palatal area showed significantly better repeatability and forensic reproducibility than the whole palate (p<0.001), but orthodontic treatment had no effect. Indirect digitization produced lower forensic and technical reproducibility than IOSs. For IOSs, repeatability (22 µm) was significantly (p<0.001) better than either forensic (75-77 µm) or technical reproducibility (37 µm). No significant changes were observed from the first to the second session in the between-sibling comparison. The closest between-sibling value (239 µm) considerably exceeded the highest forensic reproducibility value (141 µm). Conclusions Reproducibility is acceptable between the different IOSs, even two years apart, but is poor between IOS and indirect digitization. The anterior palate is relatively stable in young adults. Clinical Significance Intraoral scanning of the anterior palatal area has superior reproducibility, regardless of the IOS brand. Therefore, the IOS method could be suitable for identifying humans through anterior palatal morphology. However, the digitization of elastic impressions or plaster models had low reproducibility, preventing their application for forensic purposes.}, keywords = {PRECISION; palate; FORENSICS; HUMAN IDENTIFICATION; twin; intraoral scanner}, year = {2023}, eissn = {1879-176X}, orcid-numbers = {Mikolicz, Ákos/0000-0002-3024-3738; Simon, Botond/0000-0003-1851-1688; Shahbazi, Arvin Irani/0000-0003-3027-4582; Vág, János/0000-0002-6183-7598} } @article{MTMT:34064154, title = {Digital Palate Analysis to Verify the Mirror Twin Phenomenon}, url = {https://m2.mtmt.hu/api/publication/34064154}, author = {Simon, Botond and Vág, János and Freedman, G}, journal-iso = {ORAL HEALTH}, journal = {ORAL HEALTH}, volume = {2023}, unique-id = {34064154}, issn = {0030-4204}, year = {2023}, pages = {34-37}, orcid-numbers = {Simon, Botond/0000-0003-1851-1688; Vág, János/0000-0002-6183-7598} }