Third molar maturity index (<i>I</i><sub>3M</sub>) assessment according to different geographical zones: a large multi-ethnic study sample

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dc.contributor.authorAngelakopoulos, Nikolaos
dc.contributor.authorDe Luca, Stefano
dc.contributor.authorOliveira-Santos, Ines
dc.contributor.authorRibeiro, Isabella Lima Arrais
dc.contributor.authorBianchi, Ilenia
dc.contributor.authorBalla, Sudheer B.
dc.contributor.authorKis, Hatice Cansu
dc.contributor.authorJimenez, Lourdes Gomez
dc.contributor.authorZolotenkova, Galina
dc.contributor.authorYusof, Mohd Yusmiaidil Putera
dc.contributor.authorSelmanagic, Aida Hadzic
dc.contributor.authorPandey, Hemlata
dc.contributor.authorPereira, Palmela C.
dc.contributor.authorda Nobrega, Johnys Berton Medeiros
dc.contributor.authorKalani, Hettiarachchi
dc.contributor.authorMieke, Sylvia M.
dc.contributor.authorKumagai, Akiko
dc.contributor.authorGulsahi, Ayse
dc.contributor.authorZelic, Ksenija
dc.contributor.authorMarinkovic, Nemanja
dc.contributor.authorKelmendi, Jeta
dc.contributor.authorGalic, Ivan
dc.contributor.authorVazquez, Israel Soriano
dc.contributor.authorSpinas, Enrico
dc.contributor.authorVelezmoro-Montes, Ymelda Wendy
dc.contributor.authorMoukarzel, Maria
dc.contributor.authorToledo, Jorge Pinares
dc.contributor.authorEl-Bakary, Amal Abd El-Salam
dc.contributor.authorCameriere, Roberto
dc.date.accessioned2025-01-20T20:07:07Z
dc.date.available2025-01-20T20:07:07Z
dc.date.issued2023
dc.description.abstractIdentification of living undocumented individuals highlights the need for accurate, precise, and reproducible age estimation methods, especially in those cases involving minors. However, when their country of origin is unknown, or it can be only roughly estimated, it is extremely difficult to apply assessment policies, procedures, and practices that are accurate and child-sensitive. The main aim of this research is to optimize the correct classification of adults and minors by establishing new cut-off values for four different continents (Africa, America, Asia, and Europe). For this purpose, a vast sample of 10,701 orthopantomographs (OPTs) from four continents was evaluated. For determination and subsequent validation of the new third molar maturity index (I-3M) cut-off values by world regions, a cross-validation by holdout method was used and contingency tables (confusion matrices) were generated. The lower third molar maturity indexes, from both left and right side (I3ML and I3MR) and the combination of both sides (I3ML_I3MR) were calculated. The new cut-off values, that aim to differentiate between a minor and an adult, with more than 74.00% accuracy for all populations were as follows (I3ML; I3MR; I3ML_I3MR, respectively): Africa = (0.10; 0.10; 0.10), America = (0.10; 0.09; 0.09), Asia = (0.15; 0.17; 0.14), and Europe = (0.09; 0.09; 0.09). The higher sensitivity (Se) was detected for the I3ML for male African people (91%) and the higher specificity (Sp) of all the parameters (I3ML; I3MR; I3ML_I3MR) for Europeans both male and female (> 91%). The original cut-off value (0.08) is still useful, especially in discriminating individuals younger than 18 years old which is the goal of the forensic methods used for justice.
dc.description.funderFCT-Fundacao para a Ciencia e Tecnologia
dc.fuente.origenWOS
dc.identifier.doi10.1007/s00414-022-02930-x
dc.identifier.eissn1437-1596
dc.identifier.issn0937-9827
dc.identifier.urihttps://doi.org/10.1007/s00414-022-02930-x
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/91766
dc.identifier.wosidWOS:000901496200001
dc.issue.numero2
dc.language.isoen
dc.pagina.final425
dc.pagina.inicio403
dc.revistaInternational journal of legal medicine
dc.rightsacceso restringido
dc.subjectForensic sciences
dc.subjectDental age estimation
dc.subjectAge of majority
dc.subjectThird molar maturity index (I-3M)
dc.subjectGeographical zones
dc.subjectPopulation data
dc.titleThird molar maturity index (<i>I</i><sub>3M</sub>) assessment according to different geographical zones: a large multi-ethnic study sample
dc.typeartículo
dc.volumen137
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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