%0 Generic %A Fernandes, Larissa Chaves Cardoso %A Oliveira, Julyana de Araújo %A Santiago, Bianca Marques %A Rabello, Patrícia Moreira %A Carvalho, Marcus Vitor Diniz de %A Campello, Reginaldo Inojosa Carneiro %A Soriano, Evelyne Pessoa %D 2017 %T Cheiloscopic Study among Monozygotic Twins, Non-Twin Brothers and Non-Relative Individuals %U https://scielo.figshare.com/articles/dataset/Cheiloscopic_Study_among_Monozygotic_Twins_Non-Twin_Brothers_and_Non-Relative_Individuals/5666665 %R 10.6084/m9.figshare.5666665.v1 %2 https://ndownloader.figshare.com/files/9891460 %2 https://ndownloader.figshare.com/files/9891469 %2 https://ndownloader.figshare.com/files/9891472 %2 https://ndownloader.figshare.com/files/9891475 %2 https://ndownloader.figshare.com/files/9891484 %K forensic sciences %K forensic anthropology %K forensic dentistry %K lip %K twins %K monozygotic. %X

Abstract This study aimed to investigate cheiloscopic patterns among monozygotic twins (MT), non-twin siblings (NTS) and unrelated individuals (UI). The sample consisted of 20 pairs of monozygotic twins (G1), 20 pairs of non-twin siblings (G2) and 20 pairs of unrelated individuals (G3). Lip thickness, commissures and grooves were evaluated and the latter were classified as: I - clear-cut vertical grooves; I’ - incomplete vertical grooves; II - branched grooves; III - intersecting; IV - reticular grooves and V - undetermined, in 8 labial regions (sub-quadrants). The data were analyzed using descriptive and inferential statistics, with a 5% significance level. Concordance Correlation Coefficient (CCC) and Kappa coefficient, with a 95% confidence interval, were employed to check for agreement rates between G1, G2 and G3 pairs. There was a weak correlation for lip thickness (<0.90) in the total group, with higher values in G1 (CCC from 0.25 to 0.83 and from 0.34 to 0.86, upper and lower lips, respectively), followed by G2 (CCC from -0.03 to 0.70 and from -0.21 to 0.62, upper and lower lips, respectively) and G3 (CCC from -0.25 to 0.56 and from -0.38 to 0.34, upper and lower lips, respectively). With regard to labial commissures, Kappa statistic values were found to be 1.00 for G1, 0.45 for G2 and -0.24 for G3. As for the main groove pattern by sub-quadrant, Kappa values ranged from 0.48 to 0.87 for G1, from 0.17 to 0.59 for G2, and from -0.18 to 0.19 for G3. Monozygotic twins presented a relevant percentage of cheiloscopic agreements. Similarities were also found among NTS, while UI showed greater differences compared to their pairs, highlighting the influence of hereditary relationships on inherited cheiloscopic features.

%I SciELO journals