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Cut-off for the legal ages in the Portuguese Population by Third Maturity Index: Measures of Accuracy

2021-05Artigo científico Acesso restrito
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datacite.subject.fosCiências Médicas::Outras Ciências Médicas
datacite.subject.fosCiências Naturais::Ciências Biológicas
datacite.subject.sdg03:Saúde de Qualidade
dc.contributor.authorPereira, Cristiana Palmela
dc.contributor.authorRodrigues, Ana
dc.contributor.authorSantos, Adriana
dc.contributor.authorSalvado, Francisco
dc.contributor.authorSantos, Rui
dc.contributor.authorCameriere, Roberto
dc.date.accessioned2026-03-04T18:01:06Z
dc.date.available2026-03-04T18:01:06Z
dc.date.issued2021-05
dc.description.abstractObjectives: The aim of this study is to estimate the cut-off points for the Portuguese legal ages through the I3M, and to compare them with the methods of Demirjian, Nolla and Moorrees. Design: The lower third molars were analyzed on 348 orthopantomography's aged between 12 and 23 years in a Portuguese Population. The images were analyzed by ImageJ and the cut-off points were calculated for the respective legal ages of 14, 16, 18 and 21 years old. Results: The correlation between age and the I3M was 0.862, whereas with Demirjian's stadiums, Nolla's stages, and Moorrees’ stages the correlation coefficients were 0.863, 0.842 and 0.844, respectively. For the cut-off point of 0.08 for the age of 18, a sensitivity of 78.99 %, specificity of 93.48 %, an accuracy of 88.54 %, a positive predictive value of 86.24 % and a posteriori Bayes probability of 92.82 %. The cut-off points established for the ages of 14, 16, 18 and 21 years for the Portuguese population achieved an accuracy of 83.67 %, 85.67 %, 88.54 % and 87.11 %, respectively. Conclusion: Demirjian's method and Cameriere's method attain quite similar results. In certain ages, the methods of Nolla and Moorrees show higher sensitivity or higher specificity when compared to Cameriere's method, however this last method is more stable in terms of reliability and more suitable to use in the Portuguese population.eng
dc.description.sponsorshipThis research was supported by the Centro de Estatística e Aplicações da Universidade de Lisboa, CEAUL, FCT – Fundação para a Ciência e a Tecnologia, Grant Project reference UIDB/00006/2020.
dc.identifier.citationCristiana Palmela Pereira, Ana Rodrigues, Adriana Santos, Francisco Salvado, Rui Santos, Roberto Cameriere, Cut-off for the legal ages in the Portuguese Population by Third Maturity Index: Measures of Accuracy, Archives of Oral Biology, Volume 125, 2021, 105089, ISSN 0003-9969, https://doi.org/10.1016/j.archoralbio.2021.105089.
dc.identifier.doi10.1016/j.archoralbio.2021.105089
dc.identifier.eissn1879-1506
dc.identifier.issn0003-9969
dc.identifier.urihttp://hdl.handle.net/10400.8/15782
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationCentre of Statistics and its Applications
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S0003996921000522?via%3Dihub
dc.relation.ispartofArchives of Oral Biology
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectDental age assessment
dc.subjectPortuguese Penal Code
dc.subjectPortuguese Civil Code
dc.subjectCut-off points for Portuguese legal ages
dc.subjectThird Molar Index
dc.titleCut-off for the legal ages in the Portuguese Population by Third Maturity Index: Measures of Accuracyeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUIDB/00006/2020
oaire.awardTitleCentre of Statistics and its Applications
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00006%2F2020/PT
oaire.citation.endPage6
oaire.citation.startPage1
oaire.citation.titleArchives of Oral Biology
oaire.citation.volume125
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameSantos
person.givenNameRui
person.identifier1051057
person.identifier.ciencia-id7610-8B27-8044
person.identifier.orcid0000-0002-7371-363X
person.identifier.ridC-1873-2015
person.identifier.scopus-author-id56979441000
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
relation.isAuthorOfPublicationfba82887-7d94-41f6-a4aa-06b7de054567
relation.isAuthorOfPublication.latestForDiscoveryfba82887-7d94-41f6-a4aa-06b7de054567
relation.isProjectOfPublicatione027eda8-8a0f-43b1-a9e5-689688cf58d5
relation.isProjectOfPublication.latestForDiscoverye027eda8-8a0f-43b1-a9e5-689688cf58d5

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Objectives: The aim of this study is to estimate the cut-off points for the Portuguese legal ages through the I3M, and to compare them with the methods of Demirjian, Nolla and Moorrees. Design: The lower third molars were analyzed on 348 orthopantomography's aged between 12 and 23 years in a Portuguese Population. The images were analyzed by ImageJ and the cut-off points were calculated for the respective legal ages of 14, 16, 18 and 21 years old. Results: The correlation between age and the I3M was 0.862, whereas with Demirjian's stadiums, Nolla's stages, and Moorrees’ stages the correlation coefficients were 0.863, 0.842 and 0.844, respectively. For the cut-off point of 0.08 for the age of 18, a sensitivity of 78.99 %, specificity of 93.48 %, an accuracy of 88.54 %, a positive predictive value of 86.24 % and a posteriori Bayes probability of 92.82 %. The cut-off points established for the ages of 14, 16, 18 and 21 years for the Portuguese population achieved an accuracy of 83.67 %, 85.67 %, 88.54 % and 87.11 %, respectively. Conclusion: Demirjian's method and Cameriere's method attain quite similar results. In certain ages, the methods of Nolla and Moorrees show higher sensitivity or higher specificity when compared to Cameriere's method, however this last method is more stable in terms of reliability and more suitable to use in the Portuguese population.
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