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Corte-Real A, Ribeiro R, Machado R, Silva AM, Nunes T. Digital intraoral and radiologic records in forensic identification: Match with disruptive technology. Forensic Sci Int 2024; 361:112104. [PMID: 38936201 DOI: 10.1016/j.forsciint.2024.112104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 06/07/2024] [Accepted: 06/11/2024] [Indexed: 06/29/2024]
Abstract
While clinical dentistry has seamlessly integrated the digital revolution, there is a gap in the technological capabilities of forensic dentistry.The study aimed to compare the superimposition accuracy of two different three-dimensional record formats, namely the intraoral scanner and cone beam computer tomography, in the context of forensic identification.The sample consisted of randomly selected adults (n=10) of both sexes aged between 20 and 50 years. Following the acquisition of data using the Medit i700 wireless scanner and the iCAT Tomograph with InVivo software, the records were analysed and compared through superimposition using Medit Scan Clinic software to assess the technical precision of anatomical identification details.The results obtained through the superimposition of dental and bone records following intra- and inter-observer analysis enabled an accurate comparison and identification of an individual. This method can differentiate between positive and negative matches, achieving exclusion results and offering a potential solution to overcoming the absence of a standardisation procedure in human identification.
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Affiliation(s)
- Ana Corte-Real
- University of Coimbra, Forensic Dentistry Laboratory, Faculty of Medicine, Coimbra, Portugal.
| | - Rita Ribeiro
- University of Coimbra, Forensic Dentistry Laboratory, Faculty of Medicine, Coimbra, Portugal.
| | - Ricardo Machado
- University of Coimbra, Forensic Dentistry Laboratory, Faculty of Medicine, Coimbra, Portugal.
| | - Ana Mafalda Silva
- University of Coimbra, Forensic Dentistry Laboratory, Faculty of Medicine, Coimbra, Portugal.
| | - Tiago Nunes
- University of Coimbra, Forensic Dentistry Laboratory, Faculty of Medicine, Coimbra, Portugal.
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Farronato M, Cenzato N, Crispino R, Tartaglia FC, Biagi R, Baldini B, Maspero C. Divergence between CBCT and Optical Scans for Soft Tissue Analysis and Cephalometry in Facial Imaging: A cross-sectional study on healthy adults. Int Orthod 2024; 22:100845. [PMID: 38350255 DOI: 10.1016/j.ortho.2024.100845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/17/2024] [Accepted: 01/20/2024] [Indexed: 02/15/2024]
Abstract
BACKGROUND Facial soft tissue analysis is becoming increasingly emphasized in orthodontic diagnosis and treatment planning. While traditional cephalometry primarily focuses on hard tissues, recent non-invasive imaging techniques offer the potential to comprehensively evaluate three-dimensional (3D) facial soft tissues. The aim of the study was to establish the geometrical 3D and cephalometric divergence between Cone Beam Computed Tomography (CBCT) derived images and scanned soft tissues. Crucial for enhancing orthodontic diagnosis, minimizing patient exposure to ionizing radiation and providing facial cephalometric parameters. MATERIAL AND METHODS A cross-sectional study was conducted from January 2020 to May 2023. CBCT and 3D facial scans were obtained simultaneously using a specialized imaging system. Reproducible landmark points were selected for both cephalometric and soft tissue analysis. Angular and linear measurements were recorded, and correlations between CT and facial scans were statistically assessed. RESULTS Comparisons between 10 CBCT-derived and 10 facial scan-based soft tissue representations resulted into 1.8mm mean root median square (RMS). Angular measurements, such as ANB, right gonial angle, and left gonial angle, exhibited a 0.9° of difference with their respective soft tissue variables. In contrast, linear measurements of total anterior facial height showed a lower correlation coefficient, equal to 0.51. The correlation between soft tissues and underlying hard tissues was more pronounced for gonial angles. CONCLUSION Facial soft tissue analysis using either 3D facial scans or CBCT-derived offers similar results for orthodontic diagnosis and treatment planning. These findings support the use of non-invasive diagnostic tools in orthodontics, although further investigations are needed to comprehensively understand the complexity of hard and soft tissue relationships.
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Affiliation(s)
- Marco Farronato
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan, 20100 Milan, Italy.
| | - Niccolò Cenzato
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan, 20100 Milan, Italy
| | - Roberta Crispino
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan, 20100 Milan, Italy
| | - Francesco Carlo Tartaglia
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072 Pieve Emanuele, Italy
| | - Roberto Biagi
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan, 20100 Milan, Italy; UOC Maxillo-Facial Surgery and Dentistry, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, 20100 Milan, Italy
| | - Benedetta Baldini
- Department of Electronics, Information and Bioengineering, Politecnico Di Milano, Via Ponzio 34/5, 20133 Milan, Italy
| | - Cinzia Maspero
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan, 20100 Milan, Italy; UOC Maxillo-Facial Surgery and Dentistry, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, 20100 Milan, Italy
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Huo DM, Mao XY, Mo WW, Zhao FM, Du M, Sun RR. 3D- 3D dentition superimposition for individual identification: A study of an Eastern Chinese population. Forensic Sci Int 2023; 350:111801. [PMID: 37536075 DOI: 10.1016/j.forsciint.2023.111801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 07/06/2023] [Accepted: 07/26/2023] [Indexed: 08/05/2023]
Abstract
Recently, 3D dental intraoral scanning technology has been developed rapidly and applied widely in everyday dental practice. Since 3D dental scanning could provide valuable personal information, it enabled researchers to develop novel procedures for individual identification through 3D-3D dentition superimposition. This study aimed to test the applicability of this method in an Eastern Chinese population and propose a threshold for personal identification. For this purpose, 40 volunteers were recruited, and the initial 80 (upper and lower) 3D intraoral scans (IOS) were collected. After one year, 80 IOS of these volunteers were repeatedly collected. In addition, the other 120 IOS of 60 patients were extracted from the database. The 3D models were trimmed, aligned, and superimposed via Geomagic Control X software, and then the root mean square (RMS) value of point-to-point distance between the two models was calculated. The superimposition of two IOS belonging to the same individual was considered as a match, and superimposition of two IOS belonging to different individuals was considered as a mismatch. Totally, superimpositions of 80 matches and 3120 mismatches were obtained. Intra- and inter-observer errors were assessed through the calculation of relative technical error of measurement (rTEM). Mann-Whitney U test verified possible statistically significant differences between matches and mismatches (P < 0.05). The rTEM of intra- and inter-observer repeatability analyses was lower than 4.7 %. The range of RMS value was 0.05-0.18 mm in matches and 0.72-2.28 mm in mismatches without overlapping. The percentage of accurate identification reached 100 % in blind test through an arbitrary RMS threshold of 0.45 mm. The results indicated that individual identification through the 3D-3D dentition superimposition was effective in Eastern Chinese population. Successful identification could be achieved with high probability when the RMS value of the point-to-point distance of two dentitions is <0.45 mm.
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Affiliation(s)
- De-Min Huo
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai 200063, China; Institute of Criminal Science and Technology, Jiading Branch of Shanghai Public Security Bureau, Shanghai 201822, China
| | - Xiao-Yan Mao
- Department of Orthodontics, Shanghai Jiading District Dental Research Institute, Shanghai 201800, China
| | - Wei-Wei Mo
- School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 201424, China
| | - Fei-Ming Zhao
- School of Maritime Economics and Management of Dalian Maritime University, Dalian 116026, China
| | - Meng Du
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai 200063, China; Institute of Criminal Science and Technology, Jiading Branch of Shanghai Public Security Bureau, Shanghai 201822, China
| | - Rong-Rong Sun
- Department of Orthodontics, School & Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China.
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Gibelli D, Palamenghi A, Poppa P, Sforza C, Cattaneo C, De Angelis D. 3D‐3D
facial registration method applied to personal identification: Does it work with limited portions of faces? An experiment in ideal conditions. J Forensic Sci 2022; 67:1708-1714. [PMID: 35225363 PMCID: PMC9314689 DOI: 10.1111/1556-4029.15021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 02/05/2022] [Accepted: 02/15/2022] [Indexed: 11/28/2022]
Abstract
Personal identification of faces represents a challenging issue, especially for what concerns the quantification of the comparison. The 3D‐3D superimposition approach proved to distinguish between matches and mismatches. However, the potential of this procedure applied to cases where only parts of faces are visible still has to be verified. This study aimed at verifying the applicability of a 3D‐3D procedure to faces divided into three thirds. 3D models of fifty male subjects acquired through stereophotogrammetry were used. The 3D facial models were divided into upper, middle, and lower thirds and registered onto other models belonging to the same and different individuals according to the least point‐to‐point distance. In total, 50 matches and 50 mismatches were analyzed. RMS value (root mean square) of point‐to‐point distance between the two facial surfaces was calculated through VAM® software. Statistically significant differences between matches and mismatches in each facial third were assessed through Mann–Whitney test (p < 0.05). On average, RMS value in matches was 0.32 ± 0.12 mm in upper third, 0.36 ± 0.15 mm in middle third, and 0.40 ± 0.20 mm in lower third, respectively; in mismatches, RMS value was 1.40 ± 0.32 mm in upper third, 1.96 ± 0.58 mm in middle third, and 2.39 ± 0.90 mm in lower third, respectively. Differences in RMS values between matches and mismatches were significantly different for all facial thirds, without superimpositions (p < 0.01). This study shows that the existing 3D‐3D superimposition methods may be useful also when only a limited portion of face is visible in ideal conditions. Their application to forensic cases of identification still needs to be verified.
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Affiliation(s)
- Daniele Gibelli
- LAFAS, Laboratorio di Anatomia Funzionale dell’Apparato Stomatognatico, Dipartimento di Scienze Biomediche per la Salute Università degli Studi di Milano Milan Italy
| | - Andrea Palamenghi
- LAFAS, Laboratorio di Anatomia Funzionale dell’Apparato Stomatognatico, Dipartimento di Scienze Biomediche per la Salute Università degli Studi di Milano Milan Italy
- LABANOF, Laboratorio di Antropologia e Odontologia Forense, Dipartimento di Scienze Biomediche per la Salute Università degli Studi di Milano Milan Italy
| | - Pasquale Poppa
- LABANOF, Laboratorio di Antropologia e Odontologia Forense, Dipartimento di Scienze Biomediche per la Salute Università degli Studi di Milano Milan Italy
| | - Chiarella Sforza
- LAFAS, Laboratorio di Anatomia Funzionale dell’Apparato Stomatognatico, Dipartimento di Scienze Biomediche per la Salute Università degli Studi di Milano Milan Italy
| | - Cristina Cattaneo
- LABANOF, Laboratorio di Antropologia e Odontologia Forense, Dipartimento di Scienze Biomediche per la Salute Università degli Studi di Milano Milan Italy
| | - Danilo De Angelis
- LABANOF, Laboratorio di Antropologia e Odontologia Forense, Dipartimento di Scienze Biomediche per la Salute Università degli Studi di Milano Milan Italy
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A Longitudinal 3D Investigation on Facial Similarity among Two Monozygotic Twins in Their First Childhood: An Application of the 3D-3D Facial Superimposition Technique. CHILDREN (BASEL, SWITZERLAND) 2022; 9:children9020187. [PMID: 35204908 PMCID: PMC8869879 DOI: 10.3390/children9020187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 01/30/2022] [Indexed: 12/17/2022]
Abstract
Children affected by orofacial disorders mix functional alterations with morphological problems, and suitable techniques should be devised for their analysis. Stereophotogrammetry and 3D-3D facial superimposition have already proven to reliably assess morphological differences even between twin siblings, separating the effect of genetic and environmental factors. However, little information is available about twin babies. We longitudinally analyzed a couple of healthy monozygotic twin sisters aged 6 months to 5 years (height time points). The entire 3D facial models of the two sisters were registered according to the least point-to-point distance, and the relevant RMS (root mean square) distance between the facial models was calculated at each time and compared with reference data recorded from adult twins (Mann-Whitney test, p < 0.05). RMS values in the twin sisters were on average 1.18 ± 0.21 mm, and 1.86 ± 0.53 mm in adults, with a significant difference (p < 0.01). Results showed that twins are more similar in early childhood when environmental factors are supposed to have not influenced facial morphology sufficiently. Additionally, the technique seems adequate to detect even small differences: the faces of the twin sisters were not fully identical. 3D-3D facial superimposition techniques can objectively quantify facial dissimilarity even in monozygotic twins. The method may be applied to the faces of twins discordant for some orofacial and maxillofacial pathology and potentially separate genetic and environmental factors.
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Pinto PHV, Rodrigues CHP, Rozatto JR, da Silva AMBR, Bruni AT, da Silva MAMR, da Silva RHA. Can a spontaneous smile invalidate facial identification by photo-anthropometry? Imaging Sci Dent 2021; 51:279-290. [PMID: 34621655 PMCID: PMC8479441 DOI: 10.5624/isd.20210002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 04/18/2021] [Accepted: 04/21/2021] [Indexed: 11/18/2022] Open
Abstract
Purpose Using images in the facial image comparison process poses a challenge for forensic experts due to limitations such as the presence of facial expressions. The aims of this study were to analyze how morphometric changes in the face during a spontaneous smile influence the facial image comparison process and to evaluate the reproducibility of measurements obtained by digital stereophotogrammetry in these situations. Materials and Methods Three examiners used digital stereophotogrammetry to obtain 3-dimensional images of the faces of 10 female participants (aged between 23 and 45 years). Photographs of the participants' faces were captured with their faces at rest (group 1) and with a spontaneous smile (group 2), resulting in a total of 60 3-dimensional images. The digital stereophotogrammetry device obtained the images with a 3.5-ms capture time, which prevented undesirable movements of the participants. Linear measurements between facial landmarks were made, in units of millimeters, and the data were subjected to multivariate and univariate statistical analyses using Pirouette® version 4.5 (InfoMetrix Inc., Woodinville, WA, USA) and Microsoft Excel® (Microsoft Corp., Redmond, WA, USA), respectively. Results The measurements that most strongly influenced the separation of the groups were related to the labial/buccal region. In general, the data showed low standard deviations, which differed by less than 10% from the measured mean values, demonstrating that the digital stereophotogrammetry technique was reproducible. Conclusion The impact of spontaneous smiles on the facial image comparison process should be considered, and digital stereophotogrammetry provided good reproducibility.
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Affiliation(s)
- Paulo Henrique Viana Pinto
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Caio Henrique Pinke Rodrigues
- Department of Chemistry, School of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Juliana Rodrigues Rozatto
- Department of Oral Surgery and Periodontics, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | | | - Aline Thais Bruni
- Department of Chemistry, School of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | | | - Ricardo Henrique Alves da Silva
- Department of Stomatology, Public Health and Forensic Odontology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
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7
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Gibelli D, Palamenghi A, Poppa P, Sforza C, Cattaneo C, De Angelis D. Improving 3D-3D facial registration methods: potential role of three-dimensional models in personal identification of the living. Int J Legal Med 2021; 135:2501-2507. [PMID: 34241673 PMCID: PMC8523506 DOI: 10.1007/s00414-021-02655-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 06/27/2021] [Indexed: 11/29/2022]
Abstract
Personal identification of the living from video surveillance systems usually involves 2D images. However, the potentiality of three-dimensional facial models in gaining personal identification through 3D-3D comparison still needs to be verified. This study aims at testing the reliability of a protocol for 3D-3D registration of facial models, potentially useful for personal identification. Fifty male subjects aged between 18 and 45 years were randomly chosen from a database of 3D facial models acquired through stereophotogrammetry. For each subject, two acquisitions were available; the 3D models of faces were then registered onto other models belonging to the same and different individuals according to the least point-to-point distance on the entire facial surface, for a total of 50 matches and 50 mismatches. RMS value (root mean square) of point-to-point distance between the two models was then calculated through the VAM® software. Intra- and inter-observer errors were assessed through calculation of relative technical error of measurement (rTEM). Possible statistically significant differences between matches and mismatches were assessed through Mann–Whitney test (p < 0.05). Both for intra- and inter-observer repeatability rTEM was between 2.2 and 5.2%. Average RMS point-to-point distance was 0.50 ± 0.28 mm in matches, 2.62 ± 0.56 mm in mismatches (p < 0.01). An RMS threshold of 1.50 mm could distinguish matches and mismatches in 100% of cases. This study provides an improvement to existing 3D-3D superimposition methods and confirms the great advantages which may derive to personal identification of the living from 3D facial analysis.
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Affiliation(s)
- Daniele Gibelli
- Dipartimento Di Scienze Biomediche Per La Salute, LAFAS, Laboratorio Di Anatomia Funzionale Dell'Apparato Stomatognatico, Università Degli Studi Di Milano, Via Mangiagalli 31, 20133, Milano, Italy.
| | - Andrea Palamenghi
- Dipartimento Di Scienze Biomediche Per La Salute, LAFAS, Laboratorio Di Anatomia Funzionale Dell'Apparato Stomatognatico, Università Degli Studi Di Milano, Via Mangiagalli 31, 20133, Milano, Italy.,Dipartimento Di Scienze Biomediche Per La Salute, LABANOF, Laboratorio Di Antropologia E Odontologia Forense, Università Degli Studi Di Milano, Via Mangiagalli 37, 20133, Milano, Italy
| | - Pasquale Poppa
- Dipartimento Di Scienze Biomediche Per La Salute, LABANOF, Laboratorio Di Antropologia E Odontologia Forense, Università Degli Studi Di Milano, Via Mangiagalli 37, 20133, Milano, Italy
| | - Chiarella Sforza
- Dipartimento Di Scienze Biomediche Per La Salute, LAFAS, Laboratorio Di Anatomia Funzionale Dell'Apparato Stomatognatico, Università Degli Studi Di Milano, Via Mangiagalli 31, 20133, Milano, Italy
| | - Cristina Cattaneo
- Dipartimento Di Scienze Biomediche Per La Salute, LABANOF, Laboratorio Di Antropologia E Odontologia Forense, Università Degli Studi Di Milano, Via Mangiagalli 37, 20133, Milano, Italy
| | - Danilo De Angelis
- Dipartimento Di Scienze Biomediche Per La Salute, LABANOF, Laboratorio Di Antropologia E Odontologia Forense, Università Degli Studi Di Milano, Via Mangiagalli 37, 20133, Milano, Italy
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Ugolini A, Cossellu G, Rusconi F, De Luca S. Analysis of the palatal rugae following Rapid Maxillary Expansion (RME) by using a 3D-3D superimposition procedure. AUST J FORENSIC SCI 2021. [DOI: 10.1080/00450618.2021.1930157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Alessandro Ugolini
- Department of Surgical and Diagnostic Sciences, University of Genova, Genoa, Italy
| | - Gianguido Cossellu
- Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico, Milan, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy
| | - Francesca Rusconi
- Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico, Milan, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy
| | - Stefano De Luca
- Área de Identificación Forense, Unidad de Derechos Humanos, Servicio Médico Legal, Santiago, Chile
- AgEstimation Project, University of Macerata, Macerata, Italy
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Does the choice of the reference model affect the results of 3D-3D superimposition procedure? A comparison of different protocols for personal identification. Int J Legal Med 2021; 135:1879-1886. [PMID: 33758971 PMCID: PMC8354963 DOI: 10.1007/s00414-021-02550-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 02/22/2021] [Indexed: 11/01/2022]
Abstract
In literature, 3D-3D superimposition has been widely recognized as a valid method for personal identification. However, very little information is available about possible variability due to differences in protocols of registration of 3D models and calculation of RMS (root mean square) point-to-point distance. Frontal sinuses from 50 CT scans were segmented twice through the ITK-SNAP software and grouped in two samples (1 and 2). Maximum breadth, height and volume were measured. 3D models belonging to the same subject were then superimposed one on each other in 50 matches. In addition, superimposition of 50 random mismatches was performed. For each superimposition, the procedure was repeated four times choosing different reference models both for registration and calculation of RMS. Differences in RMS value among protocols of registration and RMS calculation were assessed through paired Student's t-test (p < 0.05). Possible correlations between differences in RMS among groups and differences in frontal sinus size between the superimposed models were analysed through calculation of Pearson's correlation coefficient (p < 0.05). Results showed that RMS calculation did not yield significant differences according to which 3D model is used as reference; on the other hand, RMS values from registration procedure significantly differ according to which model is chosen as reference, but only in the mismatch group (p < 0.001). Differences in RMS value according to RMS calculation are dependent upon all the three measurements, whereas differences according to registration protocols were significantly related only with the breadth of frontal sinuses but only in mismatches (p < 0.001). In no case, superimpositions of RMS values were found between matches and mismatches. This article for the first time proves that the protocol of registration and calculation of RMS significantly influences the results of 3D-3D superimposition only in case of mismatches.
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Silva R, Pinto P, Jacometti V, Pereira J, Silva M. Comparative Analysis between Linear Measures from Bidimensional and Three-dimensional Images of the Face for Human Identification Purpose: A Pilot Study. JOURNAL OF OROFACIAL SCIENCES 2021. [DOI: 10.4103/jofs.jofs_289_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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11
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Lee HJ, Lee KW, Tansatit T, Kim HJ. Three-Dimensional Territory and Depth of the Corrugator Supercilii: Application to Botulinum Neurotoxin Injection. Clin Anat 2019; 33:795-803. [PMID: 31637771 DOI: 10.1002/ca.23507] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 10/15/2019] [Accepted: 10/15/2019] [Indexed: 11/10/2022]
Abstract
This study aimed to determine the three-dimensional (3D) territory and depth of the corrugator supercilii muscle (CSM) using a 3D structured-light scanner. Thirty-two hemifaces from Korean and Thai embalmed cadavers were used in this study, and 35 healthy young Korean subjects also participated. A 3D analysis of the CSM territory and depth was performed using a structured-light 3D scanner. The most frequently observed locations of the CSM identified in the cadaver were confirmed in healthy young subjects using a real-time two-dimensional B-mode ultrasonography system. The CSM was present in all of the cadavers and healthy young subjects at the intersection point between the vertical line passing through the medial canthus and the horizontal line passing through the glabella (Point #6). The CSM was located on the medial side of the lateral limbus in most cases. The most-medial and most-lateral origin points were at depths of 5.7 ± 1.4 mm (mean ± SD) and 6.6 ± 1.4 mm, respectively; the corresponding depths of the insertion points were 5.4 ± 1.4 mm and 5.6 ± 2.1 mm, respectively. The origin and insertion points of the CSM were at similar depths. The injection depth should be around 4 mm for botulinum neurotoxin (BoNT) injections into the CSM. Point #6 could be regarded as an effective target point for managing the glabellar frown line and preventing palpebral ptosis when injecting BoNT into the CSM. Clin. Anat., 33:795-803, 2020. © 2019 Wiley Periodicals, Inc.
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Affiliation(s)
- Hyung-Jin Lee
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Kang-Woo Lee
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Tanvaa Tansatit
- Faculty of Medicine, Department of Anatomy, The Chula Soft Cadaver Surgical Training Center, King Chulalongkorn Memorial Hospital, Chulalongkorn University, Bangkok, Thailand
| | - Hee-Jin Kim
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, South Korea.,Department of Materials Science and Engineering, College of Engineering, Yonsei University, Seoul, South Korea
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Three-dimensional analysis of sphenoid sinus uniqueness for assessing personal identification: a novel method based on 3D-3D superimposition. Int J Legal Med 2019; 133:1895-1901. [PMID: 31396701 DOI: 10.1007/s00414-019-02139-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 08/01/2019] [Indexed: 10/26/2022]
Abstract
Sphenoid sinuses are considered the most variable structures of human body: therefore, they may be used for personal identification, through the application of 3D segmentation procedures. This study aims at proposing a new protocol for personal identification based on 3D-3D superimposition of sphenoid sinuses segmented from head CT scans. Adult subjects (equally divided among males and females) who underwent two head CT scans were extracted from a hospital database. Sphenoid sinuses were segmented through ITK-SNAP software and the corresponding 3D models were automatically superimposed to obtain 40 matches (when they belonged to the same person) and 260 mismatches (when they were extracted from different individuals). The RMS (root mean square) point-to-point distance was then calculated for all the superimpositions: differences according to sex and group (matches and mismatches) were assessed through the Mann-Whitney test (p < 0.05). On average, the RMS value was almost ten times smaller in matches (0.22 ± 0.11 mm) than in mismatches (2.16 ± 0.57 mm) with a statistically significant difference according to group (p < 0.05), but not to sex (p > 0.05). The study proposed a new method for assessing personal identification from segmented 3D models of sphenoid sinuses, useful in the forensic contexts where other methods might not be implementable or successful.
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Gibelli D, Pucciarelli V, Poppa P, Cummaudo M, Dolci C, Cattaneo C, Sforza C. Three-dimensional facial anatomy evaluation: Reliability of laser scanner consecutive scans procedure in comparison with stereophotogrammetry. J Craniomaxillofac Surg 2018; 46:1807-1813. [DOI: 10.1016/j.jcms.2018.07.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 06/26/2018] [Accepted: 07/16/2018] [Indexed: 11/25/2022] Open
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15
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Gibelli D, Pucciarelli V, Caplova Z, Cappella A, Dolci C, Cattaneo C, Sforza C. Validation of a low-cost laser scanner device for the assessment of three-dimensional facial anatomy in living subjects. J Craniomaxillofac Surg 2018; 46:1493-1499. [DOI: 10.1016/j.jcms.2018.06.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 05/28/2018] [Accepted: 06/05/2018] [Indexed: 11/25/2022] Open
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16
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Are Portable Stereophotogrammetric Devices Reliable in Facial Imaging? A Validation Study of VECTRA H1 Device. J Oral Maxillofac Surg 2018; 76:1772-1784. [DOI: 10.1016/j.joms.2018.01.021] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 01/17/2018] [Accepted: 01/17/2018] [Indexed: 11/15/2022]
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17
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An innovative 3D-3D superimposition for assessing anatomical uniqueness of frontal sinuses through segmentation on CT scans. Int J Legal Med 2018; 133:1159-1165. [PMID: 30039273 DOI: 10.1007/s00414-018-1895-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 07/17/2018] [Indexed: 10/28/2022]
Abstract
Anatomical uniqueness plays a significant role in the personal identification process of unknown deceased. Frontal sinuses have been widely used in the past decades for this purpose, mostly using 2D X-ray techniques. However, the modern 3D CT-based segmentation methods may help in developing novel and more reliable methods of identification. This study aims at assessing the anatomical uniqueness of frontal sinuses through the 3D model registration. Thirty subjects who underwent two maxillofacial CT scans (interval: 1 month to 5 years) were selected from a hospital database. Frontal sinuses were automatically segmented through ITK-SNAP open source software and the 3D models belonging to the same patient were automatically superimposed according to the least point-to-point difference between the two surfaces. Two hundred patients were randomly selected from the same database and undergo the same procedure to perform 200 superimpositions of frontal sinuses belonging to different individuals, equally divided between males and females (mismatches). Statistically significant differences of average root mean square (RMS) point-to-point distance between the group of matches and mismatches, as well as possible differences according to sex, were assessed through Mann-Whitney U test (p < 0.05). In the group of matches, RMS ranged between 0.07 and 0.96 mm (mean RMS 0.35 ± 0.23 mm), while in the group of mismatches, it ranged between 0.96 and 10.29 mm (mean RMS 2.59 ± 1.79 mm), with a statistically significant difference (p < 0.0001). Neither the matches nor the mismatches group showed statistically significant differences according to sex. This study proposes a novel 3D approach for the assessment of anatomical uniqueness of frontal sinuses, providing both morphological and quantitative analysis, and a new method of identification based on 3D assessment of frontal sinuses, applicable when ante-mortem CT scans are available.
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Gibelli D, Pucciarelli V, Poppa P, De Angelis D, Cummaudo M, Pisoni L, Codari M, Cattaneo C, Sforza C. 3D-3D facial superimposition between monozygotic twins: A novel morphological approach to the assessment of differences due to environmental factors. Leg Med (Tokyo) 2018; 31:33-37. [DOI: 10.1016/j.legalmed.2017.12.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 12/20/2017] [Accepted: 12/26/2017] [Indexed: 11/29/2022]
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3D quantitative analysis of early decomposition changes of the human face. Int J Legal Med 2017; 132:649-653. [DOI: 10.1007/s00414-017-1647-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 07/05/2017] [Indexed: 10/19/2022]
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