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Dental age assessment by I 2M and I 3M

dc.contributor.authorAugusto, A.
dc.contributor.authorPereira, C. Palmela
dc.date.accessioned2022-01-14T11:39:08Z
dc.date.available2022-01-14T11:39:08Z
dc.date.issued2021
dc.description.abstractObjective: 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 (I2M), and third molar index (I3M) 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 I2M, 633 orthopantomographs (270 females / 363 males), the age range from 7 to 17 years and for I3M, 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 I3M cut-off point (1.133) for 12- year- olds obtained better results than the cut-off point stated by the I2M (0.135). Besides, I2M cut-off point (0.001) for 14- year- olds showed better results when compared with the cut-off point (0.705) established by the I3M. Both methods are reliable for the legal age thresholds of 12 and 14 years. However, using I2M and I3M 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 I3M obtained better results for the 12- year- old cut-off point (1.133) and the accuracy (90.21%) of the I2M performed better for the 14- year- old cut-off point (0.001).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAugusto A, Palmela Pereira C, Rodrigues A, Cameriere R, Salvado F, Santos R. Dental age assessment by I 2M and I 3M: Portuguese legal age thresholds of 12 and 14 years old. Acta Stomatol Croat 2021;55:45-55.pt_PT
dc.identifier.issn1846-0410
dc.identifier.urihttp://hdl.handle.net/10451/50812
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.subjectSaúde Oralpt_PT
dc.titleDental age assessment by I 2M and I 3Mpt_PT
dc.title.alternativePortuguese legal age thresholds of 12 and 14 years oldpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage55pt_PT
oaire.citation.startPage45pt_PT
oaire.citation.titleActa Stomatol Croatpt_PT
oaire.citation.volume55pt_PT
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT

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