A finite element analysis of the stress distribution to the mandible from impact forces with various orientations of third molars

Journal of Zhejiang University. Science. B
Yunfeng LiuXian-Feng Jiang

Abstract

To investigate the stress distribution to the mandible, with and without impacted third molars (IM3s) at various orientations, resulting from a 2000-Newton impact force either from the anterior midline or from the body of the mandible. A 3D mandibular virtual model from a healthy dentate patient was created and the mechanical properties of the mandible were categorized to 9 levels based on the Hounsfield unit measured from computed tomography (CT) images. Von Mises stress distributions to the mandibular angle and condylar areas from static impact forces (Load I-front blow and Load II left blow) were evaluated using finite element analysis (FEA). Six groups with IM3 were included: full horizontal bony, full vertical bony, full 450 mesioangular bony, partial horizontal bony, partial vertical, and partial 450 mesioangular bony impaction, and a baseline group with no third molars. Von Mises stresses in the condyle and angle areas were higher for partially than for fully impacted third molars under both loading conditions, with partial horizontal IM3 showing the highest fracture risk. Stresses were higher on the contralateral than on the ipsilateral side. Under Load II, the angle area had the highest stress for various orientations ...Continue Reading

References

Mar 1, 1992·Journal of Biomechanics·R T HartR C Anderson
Feb 1, 1992·International Journal of Oral and Maxillofacial Surgery·P Mercier, D Precious
Aug 1, 1991·Oral Surgery, Oral Medicine, and Oral Pathology·I VentäP Ylipaavalniemi
Jul 1, 1968·The British Journal of Oral Surgery·J A Halazonetis
Jun 1, 1995·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·N Safdar, J G Meechan
Jul 1, 1995·Medical Engineering & Physics·J Y RhoR B Ashman
Jun 1, 1995·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·D B Tevepaugh, T B Dodson
Feb 16, 2000·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·J Ma'aita, A Alwrikat
Apr 12, 2000·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·J T Lee, T B Dodson
May 4, 2002·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·James C FuselierThomas B Dodson
Jul 10, 2002·International Journal of Oral and Maxillofacial Surgery·T MeisamiC M L Clokie
May 10, 2005·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Seiji IidaJoachim Mühling
May 10, 2005·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Richard WerkmeisterKoord Smolka
Jan 20, 2010·International Journal of Oral and Maxillofacial Surgery·A ThangaveluA Vaidhyanathan
Jan 22, 2010·Oral and Maxillofacial Surgery·Bruno Ramos Chrcanovic, Antônio Luís Neto Custódio
Feb 27, 2010·The Journal of Craniofacial Surgery·Paolo Boffano, Fabio Roccia
Nov 20, 2012·International Journal of Oral and Maxillofacial Surgery·T P BezerraE C Studart-Soares
Apr 9, 2013·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Zeyang XiaJie Chen
Sep 3, 2013·Craniomaxillofacial Trauma & Reconstruction·Bruno G DuarteEduardo Sanches Gonçales
Sep 21, 2013·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Joseph E Cillo, Edward Ellis
Nov 2, 2013·Revue de stomatologie, de chirurgie maxillo-faciale et de chirurgie orale·M DonadilleN Zwetyenga
Feb 18, 2014·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Rajasekhar GaddipatiVinay Kumar Gunda
Jul 6, 2014·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Saba NaghipurReda Fouad Elgazzar
May 6, 2015·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Svetlana AnticMarija Djuric
May 27, 2015·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Paul N AfroozJulio A Clavijo-Alvarez
Nov 26, 2015·Journal of Maxillofacial and Oral Surgery·S Revanth KumarDushyanth Paul
May 18, 2016·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Pradeep SinghZeng Lin

❮ Previous
Next ❯

Citations

Sep 26, 2019·Computer Methods in Biomechanics and Biomedical Engineering·Jianlei WuXu Xu
Oct 9, 2019·Technology and Health Care : Official Journal of the European Society for Engineering and Medicine·Meric Bilgic Kucukguven, Murat Akkocaoğlu
Oct 5, 2021·Journal of Plastic Surgery and Hand Surgery·Dan YuHuiyong Zhu

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.