الفهرس | Only 14 pages are availabe for public view |
Abstract Forensic anthropology is the application of the science of physical or biological anthropology to the legal process. In the adult skeleton, sex determination is usually the first step of the identification process. Subsequent methods for age and stature estimation are sex dependent. The mandible is the strongest bone in the human body and persists in a well-preserved state longer than any other bone. Therefore, the use of morphological features of the mandible is a common approach used by anthropologists and forensic dentists in the determination of gender. CBCT has made a revolution in the field of radiology. It permits 3D vision of anatomical structure. It is characterized by less radiation dose and cost than that of MDCT. Therefore our study used CBCT to evaluate sexual dimorphism by certain measurements of IAC and its foramina. One hundred male CBCT and one hundred female CBCT were collected. Sixteen measurements (eight for the right side and eight for the left one) were performed on each CBCT. Two measurements for the mandibular foramen were taken on the axial cut; the distance from the anterior border of the foramen to the anterior border of ramus (AMaF) and the distance between the posterior border of the foramen to the posterior border of ramus. Four measurements of IAC were taken on the frontal cut; the distance from the canal to the alveolar crest (SIAC), the distance from the canal to the buccal plate of bone (BIAC), the distance from the canal to the lingual plate of bone (LIAC) and the distance from the canal to the lower border of the mandible (IIAC). 63 Two measurements for the mental foramen were taken; the distance from superior end of the foramen to the lower border of the mandible (SMeF) and the distance from inferior end of the foramen to the lower border of the mandible (IMeF). The results revealed that all the measurements exhibited significant difference between both genders except AMaF of both sides, PMaF of left side and SIAC of both sides.from our study we can conclude that CBCT radiography is efficient for making the proposed measurements and can be considered as a method to determine gender from the skeletal remains. |