Palla Gallo
Fakultäten » Zentrum für Zahnmedizin » Kaufunktionsstörungen, abnehmbare Rekonstruktionen, Alters- und Behindertenzahnmedizin, Klinik für » Prof. Dr. Sandro Palla (emeritiert) » Palla Gallo
Completed research project
| Title / Titel | Dynamic 3D biphasic finite element analysis of the temporomandibular joint disc | ||||||
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| Abstract (PDF, 14 KB) | |||||||
| Summary / Zusammenfassung | This project is motivated by the hypothesis that magnitude and frequency of stresses applied to the collagen-glycosaminoglycan matrix of articular cartilage may play a role in the development of degenerative joint disease. We are investigating dynamically the stress, strain and pressure conditions within the temporomandibular joint disc, modeled as a biphasic tissue. Since the TMJ disc material properties are anisotropic, we first analyzed the mediolateral velocity component of stress-fields responsible for plowing forces. As a first approximation, we located the stress-field of the TMJ disc in the area of minimum condyle-fossa distance. Preliminary results show that in asymptomatic joints the mediolateral velocity components vary between 35+17 and 40+19 mm/sec during unloaded jaw opening/closing movements of 0.5 and 1 Hz rate, with a corresponding energy dissipation estimated between 6 and 709 mJ. | ||||||
| Publications / Publikationen | Fushima K, Krebs M, Palla S: Three-dimensional reconstruction and animation of the temporomandibular joint, J Japan Orthodontic Soc (1996) 6:528-538Gallo LM, Nickel JC, Iwasaki LR, Palla S: Stress-field Translation in the Healthy Human Temporomandibular Joint, J Dent Res (2000) 79:1740-1746Fushima K, Gallo LM, Krebs M, Palla S: Analysis of the TMJ intraarticular space variation: a non-invasive insight during mastication, planned | ||||||
| Keywords / Suchbegriffe | Biomechanics, Temporomandibular joint, Loading | ||||||
| Project leadership and contacts / Projektleitung und Kontakte |
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| Duration of Project / Projektdauer | Jan 1997 to Dec 2005 |