The Relation between Some Genetic Traits (Ptc Tasting, Tongue Rolling, Earlobe Attachment and Dental Occlusion in Iraqi Adults Saloom Jinan E.1, Al-Joubori Sami K.1,*, Al-Mashhdany Sara M.1 1Department of Orthodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq *Corresponding Author: Sami K. Al-Joubori, Department of Orthodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq, Email: samikadhum76@gmail.com
Online published on 23 December, 2019. Abstract This study aimed to determine the possible relation among three genetic traits named phenylthiocarbamide (PTC) tasting ability, earlobes attachment, and tongue rolling ability together with class I, class II and class III dental malocclusion. The study was undertaken amongst 81 dental students of college of dentistry of Baghdad university aged(18–25), (52 female& 29 male) with different anteroposterior dental malocclusion to determine their phenylthiocarbamide (PTC) tasting ability, earlobes attachments configurations and tongue rolling ability, for these non-parametric variables, chi-square and percentage tests were used to examine differences among groups. The prevalence of (PTC) tasting ability was higher in all dental classes and being higher in male group of Cl I, Cl II and female group of Cl III sample, the prevalence of free un-attached earlobes is higher in all dental classes being highest in Cl III sample, the prevalence of tongue rolling ability is higher in all dental classes except for female group of Cl III sample who are mostly non curler. These variables showed statistically significant gender differences (P≤0.05), CI III dental malocclusion showed specific distribution pattern of the studied genetic traits suggesting for a possible genetic link among them. Top Keywords Malocclusion, (PTC) tasting, Earlobes attachments, Tongue rolling. Top |