Mandibular Sexual Dimorphism Analysis in CBCT Scans in a Syrian Sample

• Published in: Cumhuriyet Dental Journal Vol. 23; no. 2; pp. 124 - 128
• Main Authors: ABO FAKHER, Majid, OWAYDA, Amer, AL-ASSAF, Maher, HAMADAH, Omar, ABDUL-HAK, Mahmoud, NOFAL, Houssein
• Format: Journal Article
• Language: English
• Published: Cumhuriyet University 30-06-2020
• Subjects: forensic anthropology; forensic dentistry; mandible; sex characteristics
• ISSN: 1302-5805; 2146-2852
• DOI: 10.7126/cumudj.679175

Objectives: This study
aimed to develop metrical and angular indices to predict the sex of unknown
skeletonized human remains in Syria using the mandibular bone.
Material
and Methods: The sample consisted of 99 CBCT scans of the Syrian population (43
males, 56 females) aged between 18-25 years. The collected CBCT images were
analyzed on two occasions and by two examiners to test the reliability of
measurements. Four measurements were analyzed to be used for sexual prediction
analysis as following: Coronoid-Gonion length (the distance between Gonion and
the highest lateral point on the Coronoid process (, minimum ramus breadth,
Gonial angle, and Bigonial width.
Results:
All the aforementioned measurements showed significant statistical sex-related
differences. The Bigonial width showed the highest difference with (P < 0.01
_ mean: 95.17 ± 6.45 mm for males, 86.84 ± 4.81 mm for females), followed by
the gonial angle (P<0.01_ mean: 127.11º ± 7.87º for males, 131.52º ± 6.08º
for females). Coronoid-gonion length (P < 0.01 _ mean: 58.61 ± 6.78 mm for
males, 53.97 ± 5.26 mm for females) and minimum ramus breadth (P < 0.01 _
mean: 29.63 ± 2.90 mm for males, 27.89 ± 2.73 mm for females). specificity and sensitivity for the four indices derived function
were 79 % and 80 % respectively and the diagnostic accuracy was 79.6 %.
Conclusions:
The present study suggested that the sex of mandible in Syrian population could
be assessed using metrical and angular measurements which considered as an
additional tool for sex identification.