Dental Age Assessment by I 2M and I 3M : Portuguese Legal Age Thresholds of 12 and 14 Year Olds
Objective: Better understanding of dental age assessment may help in cases of age estimation in Forensic Clinics. The first aim was to provide essential information on method reliability for upcoming studies using dental age assessment by second molar index (I 2M ), and third molar index (I 3M ) for...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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University of Zagreb. School of Dental Medicine
2021-01-01
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| Series: | Acta Stomatologica Croatica |
| Subjects: | |
| Online Access: | https://hrcak.srce.hr/file/369349 |
| _version_ | 1797206976199917568 |
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| author | Diana Augusto Cristiana Palmela Pereira Ana Rodrigues Roberto Cameriere Francisco Salvado Rui Santos |
| author_facet | Diana Augusto Cristiana Palmela Pereira Ana Rodrigues Roberto Cameriere Francisco Salvado Rui Santos |
| author_sort | Diana Augusto |
| collection | DOAJ |
| description | Objective: Better understanding of dental age assessment may help in cases of age estimation in Forensic Clinics. The first aim was to provide essential information on method reliability for upcoming studies using dental age assessment by second molar index (I 2M ), and third molar index (I 3M ) for age estimation on legal ages of 12 - 14 years. The second aim was to document forensic method outcomes of the Demirjian method which has already been used in forensic clinic. Material and methods: Two samples were used for this purpose: for I 2M , 633 orthopantomographs (270 females / 363 males), the age range from 7 to 17 years and for I 3M , 471 orthopantomographs (253 females / 218 males), the age range from 10 to 23 years, from the database population of Lisbon North University Hospital Center, approved by the Ethic Committee. Results: The I 3M cut-off point (1.133) for 12- year-olds obtained better results than the cut-off point stated by the I 2M (0.135). Besides, I 2M cut-off point (0.001) for 14- year- olds showed better results when compared with the cut-off point (0.705) established by the I 3M . Both methods are reliable for the legal age thresholds of 12 and 14 years. However, using I 2M and I 3M allows us to vary the cut-off value to privilege sensitivities or specificity, depending on which is more appropriate to the intended application. Conclusions: The accuracy (88.94%) of I 3M obtained better results for the 12- year- old cut-off point (1.133) and the accuracy (90.21%) of the I 2M performed better for the 14- year- old cut-off point (0.001). |
| first_indexed | 2024-04-24T09:15:34Z |
| format | Article |
| id | doaj.art-052330b98f8c437ea40d67964addee5f |
| institution | Directory Open Access Journal |
| issn | 0001-7019 1846-0410 |
| language | English |
| last_indexed | 2024-04-24T09:15:34Z |
| publishDate | 2021-01-01 |
| publisher | University of Zagreb. School of Dental Medicine |
| record_format | Article |
| series | Acta Stomatologica Croatica |
| spelling | doaj.art-052330b98f8c437ea40d67964addee5f2024-04-15T16:51:08ZengUniversity of Zagreb. School of Dental MedicineActa Stomatologica Croatica0001-70191846-04102021-01-01551455510.15644/asc55/1/6Dental Age Assessment by I 2M and I 3M : Portuguese Legal Age Thresholds of 12 and 14 Year OldsDiana Augusto0Cristiana Palmela Pereira1Ana Rodrigues2Roberto Cameriere3Francisco Salvado4Rui Santos5Faculty of Dental Medicine, University of Lisbon, Portugal, Student of master’s in dental medicineFaculty of Dental Medicine, University of Lisbon, PortugalFaculty of Dental Medicine, University of Lisbon, Portugal, and Junior Researcher of the CEAUL Forensic Analysis Group. Student of master’s in dental medicineDepartment of Forensic Medicine, University of Sechenov, Moscow, Russia & Age Estimation Project, FOR.MED.LAB, University of Macerata, Macerata, ItalyFaculty of Medicine, University of Lisbon, collaborator researcher at the Centre of Statistics and Applications of University of Lisbon (CEAUL), Portugal; Head of Stomatology Department (Santa Maria Hospital - Lisbon)Department of Mathematics, School of Technology and Management, Polytechnic of Leiria, Portugal; integrated researcher at the Centre of Statistics and Applications, University of Lisbon (CEAUL), PortugalObjective: Better understanding of dental age assessment may help in cases of age estimation in Forensic Clinics. The first aim was to provide essential information on method reliability for upcoming studies using dental age assessment by second molar index (I 2M ), and third molar index (I 3M ) for age estimation on legal ages of 12 - 14 years. The second aim was to document forensic method outcomes of the Demirjian method which has already been used in forensic clinic. Material and methods: Two samples were used for this purpose: for I 2M , 633 orthopantomographs (270 females / 363 males), the age range from 7 to 17 years and for I 3M , 471 orthopantomographs (253 females / 218 males), the age range from 10 to 23 years, from the database population of Lisbon North University Hospital Center, approved by the Ethic Committee. Results: The I 3M cut-off point (1.133) for 12- year-olds obtained better results than the cut-off point stated by the I 2M (0.135). Besides, I 2M cut-off point (0.001) for 14- year- olds showed better results when compared with the cut-off point (0.705) established by the I 3M . Both methods are reliable for the legal age thresholds of 12 and 14 years. However, using I 2M and I 3M allows us to vary the cut-off value to privilege sensitivities or specificity, depending on which is more appropriate to the intended application. Conclusions: The accuracy (88.94%) of I 3M obtained better results for the 12- year- old cut-off point (1.133) and the accuracy (90.21%) of the I 2M performed better for the 14- year- old cut-off point (0.001).https://hrcak.srce.hr/file/369349MeSH terms: Age Determination by TeethForensic DentistryMolarAdolescent. Author keywords: Dental age assessmentCameriere’s I 3M and I 2MDemirjian’s method |
| spellingShingle | Diana Augusto Cristiana Palmela Pereira Ana Rodrigues Roberto Cameriere Francisco Salvado Rui Santos Dental Age Assessment by I 2M and I 3M : Portuguese Legal Age Thresholds of 12 and 14 Year Olds Acta Stomatologica Croatica MeSH terms: Age Determination by Teeth Forensic Dentistry Molar Adolescent. Author keywords: Dental age assessment Cameriere’s I 3M and I 2M Demirjian’s method |
| title | Dental Age Assessment by I 2M and I 3M : Portuguese Legal Age Thresholds of 12 and 14 Year Olds |
| title_full | Dental Age Assessment by I 2M and I 3M : Portuguese Legal Age Thresholds of 12 and 14 Year Olds |
| title_fullStr | Dental Age Assessment by I 2M and I 3M : Portuguese Legal Age Thresholds of 12 and 14 Year Olds |
| title_full_unstemmed | Dental Age Assessment by I 2M and I 3M : Portuguese Legal Age Thresholds of 12 and 14 Year Olds |
| title_short | Dental Age Assessment by I 2M and I 3M : Portuguese Legal Age Thresholds of 12 and 14 Year Olds |
| title_sort | dental age assessment by i 2m and i 3m portuguese legal age thresholds of 12 and 14 year olds |
| topic | MeSH terms: Age Determination by Teeth Forensic Dentistry Molar Adolescent. Author keywords: Dental age assessment Cameriere’s I 3M and I 2M Demirjian’s method |
| url | https://hrcak.srce.hr/file/369349 |
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