Sex Determination using Comparison of the Thickness of Permanent Maxillary Premolars and First Molars by Digital Bitewing Radiography

Human identification playing an important role in forensic medicine. Sex differences from remained human skeletons have been evaluated in many societies but dental investigations were less studied. The aim of this study was to compare mesio-distal diameter of permanent maxillary first and second premolars and first molars by digital bitewing radiography among Iranian men and women.
Subjects and This analytical epidemiological study was carried out on 100 bitewing radiography of patients. Films were digitally scanned and then the magnification was calculated, the mesiodistal diameter of the crown, dentin and mesial diameter and distal diamter of enamel were measured. Data were analyzed using independent sample T test and discriminant functions.
In this study mesio-distal mean diameter of the first and second premolars dentin were significantly greater in men than in women (p In the present study we can conclude that sex determination in Iranian population can be highly possible by intact remaining maxillary first and second premolars dental samples. Also, this study approves sexual dimorphism in mesio-distal diameter of dentin with an accuracy of 52 percent.