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Serin Canpolat S, Bayrak S. Evaluation of radiographic visibility of root pulp in mandibular second molars using cone beam computed tomography images for age estimation. Forensic Sci Med Pathol 2024; 20:8-13. [PMID: 36853501 DOI: 10.1007/s12024-023-00594-6] [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] [Accepted: 02/13/2023] [Indexed: 03/01/2023]
Abstract
The purpose of this study is to estimate chronological age and determine whether individuals were aged under or over 18 years using root pulp visibility (RPV) in cone-beam computed tomography (CBCT) images. The study included CBCT images of 699 individuals aged between 15 and 75 years. One thousand twenty-three mandibular second molar (2M) teeth were evaluated using Olze's RPV method in four stages. Descriptive statistics of the stages and the relationship between the stages and the chronological age were assessed. The distribution of the stages was analyzed according to the 18-year age threshold. There was a positive correlation between RPV stages and chronological ages in both sexes. For females and males, the mean ages of stage 0, stage 1, and stage 2, for females and males, were found as 27.21, 28.93, and 33.68 years, and 37.69, 40.9, and 44.88 years, respectively. Stage 0 and stage 1 were found both in individuals aged under and over 18 years, and stage 2 and stage 3 were not observed in individuals aged under 18 years. The presence of stage 2 and stage 3 may be an indication that an individual is aged over 18 years according to Olze's RPV age estimation method. For more reliable results, 2M teeth should be examined bilaterally in forensic science.
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Affiliation(s)
- S Serin Canpolat
- Faculty of Dentistry, Department of Dentomaxillofacial Radiology, Bolu Abant Izzet Baysal University, Golkoy, Bolu, Turkey.
| | - S Bayrak
- Faculty of Dentistry, Department of Dentomaxillofacial Radiology, Bolu Abant Izzet Baysal University, Golkoy, Bolu, Turkey
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Vila-Blanco N, Varas-Quintana P, Tomás I, Carreira MJ. A systematic overview of dental methods for age assessment in living individuals: from traditional to artificial intelligence-based approaches. Int J Legal Med 2023; 137:1117-1146. [PMID: 37055627 PMCID: PMC10247592 DOI: 10.1007/s00414-023-02960-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 01/31/2023] [Indexed: 04/15/2023]
Abstract
Dental radiographies have been used for many decades for estimating the chronological age, with a view to forensic identification, migration flow control, or assessment of dental development, among others. This study aims to analyse the current application of chronological age estimation methods from dental X-ray images in the last 6 years, involving a search for works in the Scopus and PubMed databases. Exclusion criteria were applied to discard off-topic studies and experiments which are not compliant with a minimum quality standard. The studies were grouped according to the applied methodology, the estimation target, and the age cohort used to evaluate the estimation performance. A set of performance metrics was used to ensure good comparability between the different proposed methodologies. A total of 613 unique studies were retrieved, of which 286 were selected according to the inclusion criteria. Notable tendencies to overestimation and underestimation were observed in some manual approaches for numeric age estimation, being especially notable in the case of Demirjian (overestimation) and Cameriere (underestimation). On the other hand, the automatic approaches based on deep learning techniques are scarcer, with only 17 studies published in this regard, but they showed a more balanced behaviour, with no tendency to overestimation or underestimation. From the analysis of the results, it can be concluded that traditional methods have been evaluated in a wide variety of population samples, ensuring good applicability in different ethnicities. On the other hand, fully automated methods were a turning point in terms of performance, cost, and adaptability to new populations.
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Affiliation(s)
- Nicolás Vila-Blanco
- Centro Singular de Investigación en Tecnoloxías Intelixentes (CiTIUS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
- Departamento de Electrónica e Computación, Escola Técnica Superior de Enxeñaría, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Paulina Varas-Quintana
- Oral Sciences Research Group, Special Needs Unit, Department of Surgery and Medical Surgical Specialities, School of Medicine and Dentistry, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Inmaculada Tomás
- Centro Singular de Investigación en Tecnoloxías Intelixentes (CiTIUS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain.
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Santiago de Compostela, Spain.
- Oral Sciences Research Group, Special Needs Unit, Department of Surgery and Medical Surgical Specialities, School of Medicine and Dentistry, Universidade de Santiago de Compostela, Santiago de Compostela, Spain.
| | - María J Carreira
- Centro Singular de Investigación en Tecnoloxías Intelixentes (CiTIUS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain.
- Departamento de Electrónica e Computación, Escola Técnica Superior de Enxeñaría, Universidade de Santiago de Compostela, Santiago de Compostela, Spain.
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Santiago de Compostela, Spain.
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Age estimation in the living: A scoping review of population data for skeletal and dental methods. Forensic Sci Int 2021; 320:110689. [PMID: 33561788 DOI: 10.1016/j.forsciint.2021.110689] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 01/07/2021] [Accepted: 01/11/2021] [Indexed: 11/22/2022]
Abstract
Age estimation of living individuals has become a crucial part of the forensic practice, especially due to the global increase in cross-border migration. The low rate of birth registration in many countries, hence of identification documents of migrants, especially in Africa and Asia, highlights the importance of reliable methods for age estimation of living individuals. Despite the fact that a number of skeletal and dental methods for age estimation have been developed, their main limitation is that they are based on specific reference samples and there is still no consensus among researchers on whether these methods can be applied to all populations. Though this issue remains still unsolved, population information at a glance could be useful for forensic practitioners dealing with such issues. This study aims at presenting a scoping review and mapping of the current situation concerning population data for skeletal (hand-wrist and clavicle) and dental methods (teeth eruption and third molar formation) for age estimation in the living. Two hundred studies on the rate of skeletal maturation and four hundred thirty-nine on the rate of dental maturation were found, covering the period from 1952 and 2020 for a total of ninety-eight countries. For most of the western and central African countries there are currently no data on the rate of skeletal and dental maturation. The same applies to the countries of the Middle East, as well as the eastern European countries, especially as regard the skeletal development.
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Gunasekaran S, Mahabob N, Elangovan C, Jaishankar S, Kumar BS, Rajendran D. Comparison of two methods in estimating the relation between dental age and chronological age. JOURNAL OF INDIAN ACADEMY OF ORAL MEDICINE AND RADIOLOGY 2021. [DOI: 10.4103/jiaomr.jiaomr_93_21] [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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Gomes DC, Azevedo IG, de Figueiredo Araújo AG, da Costa Lopes LD, Nagem DAP, Magalhães FA, Pereira SA. Thoracoabdominal motion in newborns: Reliability between two interactive computing environments. Pediatr Pulmonol 2020; 55:1184-1189. [PMID: 32168420 DOI: 10.1002/ppul.24709] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 02/19/2020] [Indexed: 01/16/2023]
Abstract
BACKGROUND Quantifying the chest wall is useful in documenting thoracoabdominal synchrony during the neonatal period. Subjective measures are often used rather than gold-standard methods due to their practicality in clinical practice. The aim of the present study is to compare the reliability between a newly proposed method (video analysis in MATLAB) and image analysis using AutoCad tools, both applied to assess thoracoabdominal motion in newborns (NBs). MATERIALS AND METHODS This is an observational cross-sectional study of full-term NBs. A digital camera was used to film thoracoabdominal motion for 2 minutes in the supine position, with movements measured by the two aforementioned methodologies. RESULTS A total of 139 images were used, showing agreement between AutoCAD and MATLAB (BIAS = -1.68; CI = -6.59:3.22, Bland-Altman plot). CONCLUSION The programs were interchangeable and the routine developed in MATLAB was simpler and faster, allowing dynamic analysis and suggesting its clinical utility in quantifying respiratory motion in NBs.
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Affiliation(s)
- Danielle C Gomes
- Rehabilitation Sciences Graduate Program, Universidade Federal do Rio Grande do Norte, Santa Cruz, Rio Grande do Norte, Brazil
| | - Ingrid G Azevedo
- Kinesiología Course, Universidad Católica de Temuco, Temuco, Chile
| | - Ana G de Figueiredo Araújo
- Rehabilitation Sciences Graduate Program, Universidade Federal do Rio Grande do Norte, Santa Cruz, Rio Grande do Norte, Brazil
| | - Lenice D da Costa Lopes
- FACISA, Universidade Federal do Rio Grande do Norte, Santa Cruz, Rio Grande do Norte, Brazil
| | - Danilo A P Nagem
- Departamento de Engenharia Biomédica, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Fabrício A Magalhães
- Departamento de Fisioterapia, Graduate Program in Rehabilitation Sciences, Univerisdade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Silvana A Pereira
- Rehabilitation Sciences Graduate Program, Universidade Federal do Rio Grande do Norte, Santa Cruz, Rio Grande do Norte, Brazil.,Departamento de Fisioterapia, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
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Lee JH, Lee C, Battulga B, Na JY, Hwang JJ, Kim YH, Han SS. Morphological analysis of the lower second premolar for age estimation of Korean adults. Forensic Sci Int 2017; 281:186.e1-186.e6. [DOI: 10.1016/j.forsciint.2017.10.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 07/11/2017] [Accepted: 10/04/2017] [Indexed: 11/24/2022]
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Balla SB, Galic I, P. K, Vanin S, De Luca S, Cameriere R. Validation of third molar maturity index (I 3M ) for discrimination of juvenile/adult status in South Indian population. J Forensic Leg Med 2017; 49:2-7. [DOI: 10.1016/j.jflm.2017.05.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 03/14/2017] [Accepted: 05/01/2017] [Indexed: 11/26/2022]
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Fins P, Pereira ML, Afonso A, Pérez-Mongiovi D, Caldas IM. Chronology of mineralization of the permanent mandibular second molar teeth and forensic age estimation. Forensic Sci Med Pathol 2017; 13:272-277. [DOI: 10.1007/s12024-017-9876-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/01/2017] [Indexed: 10/19/2022]
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Age estimation in adults by dental imaging assessment systematic review. Forensic Sci Int 2017; 275:203-211. [PMID: 28410514 DOI: 10.1016/j.forsciint.2017.03.007] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 01/28/2017] [Accepted: 03/17/2017] [Indexed: 11/21/2022]
Abstract
IMPORTANCE The need to rely on proper, simple, and accurate methods for age estimation in adults is still a world-wide issue. It has been well documented that teeth are more resistant than bones to the taphonomic processes, and that the use of methods for age estimation based on dental imaging assessment are not only less invasive than those based on osseous analysis, but also have shown similar or superior accuracy in adults. OBJECTIVES To summarise the results of some of the recently most recently cited methods for dental age estimation in adults, based on odontometric dental imaging analysis, to establish which is more accurate, accessible, and simple. EVIDENCE REVIEW A literature search from several databases was conducted from January 1995 to July 2016 with previously defined inclusion criteria. CONCLUSION Based on the findings of this review, it could be possible to suggest pulp/tooth area ratio calculation from first, upper canines and other single rooted teeth (lower premolars, upper central incisors), and a specific statistical analysis that considers the non-linear production of secondary dentine with age, as a reliable, easy, faster, and predictable method for dental age estimation in adults. The second recommended method is the pulp/tooth width-length ratio calculation. The use of specific population formulae is recommended, but to include data of individuals from different groups of population in the same analysis is not discouraged. A minimum sample size of at least 120 participants is recommended to obtain more reliable results. Methods based on volume calculation are time consuming and still need improvement.
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