MUSCULOSKELETAL BIOMECHANICS IN THE HUMAN JAW.
In: Acta Medica Medianae, Jg. 58 (2019-12-01), Heft 4, S. 137-140
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Zugriff:
Most computer simulations treat the mandible as a rigid or as a flexible beam acted upon by muscles capable of differential contraction, and predict dental and articular reaction forces at selected sites. The more advanced models employ finite element analysis to include estimations of local skeletal stress, strains and deformations. It seems certain that the jaw bends three-dimensionally in a complex manner when loaded by muscle action, and how it does so depends on the clenching task. In addition, compressive loads on the mandibular condyles vary with the bite point, and are unevenly distributed between them with asymmetric biting on the dental arches. The problem of morphological definition is difficult to overcome, since this varies so much between individuals, especially when accompanied by pathology. Variations in jaw motion are common too, making it hard to define normal patterns of behavior. [ABSTRACT FROM AUTHOR]
Većina kompjuterskih simulacija tretira mandibulu kao krutu ili kao fleksibilnu gredu na koju deluju mišići sposobni za različite oblike kontrakcija i predviđaju efekte sila na zube i temporomandibularni zglob. Napredni kompjuterski modeli koriste metode analize konačnih elemenata u objašnjenju lokalnih stresnih uticaja na skeletni i mišićni sistem. Pretpostavlja se da se donja vilica savija trodimenzionalno, na složen način pod dejstvom mišića, zavisno od mesta delovanja sile stezanja. Pored toga, kompresivna opterećenja na mandibularnim kondilima variraju sa tačkom zagriza, u kom slučaju su neravnomerno raspoređena na zubnim lukovima. Problem morfološke definicije teško je prevazići, jer se veoma razlikuje između pojedinaca, posebno kada se utvrde patološki procesi. Varijacije u kretanju vilice su uobičajene, pa je teško definisati normalne obrasce ponašanja. [ABSTRACT FROM AUTHOR]
Titel: |
MUSCULOSKELETAL BIOMECHANICS IN THE HUMAN JAW.
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Autor/in / Beteiligte Person: | Antić, Vladimir ; Antić, Milorad ; Rakić, Vladimir |
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Zeitschrift: | Acta Medica Medianae, Jg. 58 (2019-12-01), Heft 4, S. 137-140 |
Veröffentlichung: | 2019 |
Medientyp: | academicJournal |
ISSN: | 0365-4478 (print) |
DOI: | 10.5633/amm.2019.0421 |
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