Journal of Orofacial Sciences

ORIGINAL ARTICLE
Year
: 2020  |  Volume : 12  |  Issue : 1  |  Page : 41--46

A Finite Element Analysis of Biomechanics in Distraction Osteogenesis of Ascending Ramus Lengthening between Males and Females—A Comparative Study


Ali R Al-Khatib1, Lamiaa A Hasan1, Mohammed Najeeb Abdullah Alrawi2, Emad Hazim Kasim Alhajar2 
1 Department of Pedodontics, Orthodontics and Preventive Dentistry, College of Dentistry, University of Mosul, Mosul, Iraq
2 Department of Mechanical Engineering, College of Engineering, University of Mosul, Mosul, Iraq

Correspondence Address:
Ali R Al-Khatib
Department of Pedodontics Orthodontics and Preventive Dentistry, College of Dentistry, University of Mosul, Mosul
Iraq

Introduction: The asymmetry of mandibular ascending ramus leads to serious orthodontic problems in the dentofacial complex. This study was aimed to assess the effects of gender bone properties difference on biomechanics of distraction osteogenesis that used for ascending ramus lengthening with different forces. Materials and Methods: A 3D mandibular model was constructed and an oblique osteotomy line was made. The force was applied perpendicular to the osteotomy line in a bidirectional manner with three different distraction rates (5 mm, 10 mm and 15 mm). Results: Male and female models showed the same maximum Von Mises stress value and the same distribution with the same force, the maximum stress value for 5mm, 10mm and 15mm rates were greater than the ultimate tensile stress for the human bone. The displacement within the three rates in X, Y and Z directions was higher for male than female. The displacements in all three directions were more prominent in the mandibular chin area. Conclusion: No gender difference in stress values and distribution with more anterior displacement in male than female. This site of distraction results in forward and anti-clockwise rotation of the mandible resulting in reducing anterior facial height.


How to cite this article:
Al-Khatib AR, Hasan LA, Alrawi MN, Alhajar EH. A Finite Element Analysis of Biomechanics in Distraction Osteogenesis of Ascending Ramus Lengthening between Males and Females—A Comparative Study.J Orofac Sci 2020;12:41-46


How to cite this URL:
Al-Khatib AR, Hasan LA, Alrawi MN, Alhajar EH. A Finite Element Analysis of Biomechanics in Distraction Osteogenesis of Ascending Ramus Lengthening between Males and Females—A Comparative Study. J Orofac Sci [serial online] 2020 [cited 2020 Oct 24 ];12:41-46
Available from: https://www.jofs.in/article.asp?issn=0975-8844;year=2020;volume=12;issue=1;spage=41;epage=46;aulast=Al-Khatib;type=0