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Stomatologija 2015; 17 (1): 13-20 1003 KB

A revised approach of human mastication function rehabilitation through monotypical mastication analysis

Gediminas Skirbutis, Algimantas Surna, Rimantas Barauskas, Rimas Surna, Alvydas Gleiznys

Summary

Objective. The aim of the simulation was to find the forcing laws, which provide the close-to reality mastication motions of the components of the system and to investigate the contact zones, interaction forces and their action points as they vary in time. The loss of one or few elements of the mastication system can be restored without significant violations of the overall function provided the general correlations among the mastication system elements, which were influenced during the evolutionary development, have been determined in advance.

Materials and methods. We present an approach based on the computer simulation of mastication biomechanics on the basis of finite element (FE) models. They were generated by using the data acquired with both optical and CT scanning systems, which enabled to obtain highly accurate three-dimensional geometrical models of all hard parts of the mastication system of a real dead goat. The surfaces of dental arcs of upper and lower jaws mechanically interacting one against another have been used as the main parts of the model.

Results. Using FE models we discovered that mastication forces are correlated directly between dental arches and TMJ surfaces. Factors influencing geometry of dental arches results a destroy jaw function.

Conclusion. In the course of this analysis the mastication system of a goat has been considered as a representative of the ruminant individual and enabled to demonstrate the mechanics of the mastication process with insights for evaluation of the similarities and differences against the human mastication.

Key words: mastication biomechanics, finite element models, physicaly based simulation, mastication process.

Received: 19 11 2014

Accepted for publishing: 25 03 2015

¹Department of dental and maxillary orthopedics, Faculty of Odontology, Medical Academy, Lithuanian university of health sciences

²Applied Informatics Department, Kaunas University of Technology, Kaunas, Lithuania.

Gediminas Skirbutis¹ – D.D.S., doctoral student Algimantas Surna1 – D.D.S., PhD., prof.

Rimantas Barauskas² – Dr. habil., prof. Rimas Surna2 – PhD, assoc. prof.

Alvydas Gleiznys¹ – D.D.S., PhD., assoc. prof.

Address correspondence to Gediminas Skirbutis, Sukileliu 51, LT-50106 Kaunas, Lithuania.

E-mail address: gediminasskirbutis@yahoo.com



	Baltic Dental and Maxillofacial Journal

March, 2015, Vol. 17, No. 1 CONTENTS SCIENTIFIC ARTICLES Heritability estimates of dental arch parameters in Lithuanian twins Vilma Švalkauskienė, Kastytis Šmigelskas, Loreta Šalomskienė, Irena Andriuškevičiūtė, Aurelija Šalomskienė, Arūnas Vasiliauskas, Antanas Šidlauskas 3-8 Antimicrobial activity of silver and gold in toothpastes: A comparative analysis Jonas Junevičius, Juozas Žilinskas, Kęstutis Česaitis, Gabrielė Česaitienė, Darius Gleiznys, Žaneta Maželienė 9-12 A revised approach of human mastication function rehabilitation through monotypical mastication analysis Gediminas Skirbutis, Algimantas Surna, Rimantas Barauskas, Rimas Surna, Alvydas Gleiznys 13-20 REVIEWS Oral manifestations of HIV disease: A review Daiva Aškinytė, Raimonda Matulionytė, Arūnas Rimkevičius 21-28 CASE REPORTS Odontogenic maxillary sinusitis obscured by midfacial trauma Regimantas Simuntis, Ričardas Kubilius, Silvija Ryškienė, Saulius Vaitkus 29-32 © 2015 Stomatologija		Stomatologija 2015; 17 (1): 13-20 1003 KB A revised approach of human mastication function rehabilitation through monotypical mastication analysis Gediminas Skirbutis, Algimantas Surna, Rimantas Barauskas, Rimas Surna, Alvydas Gleiznys Summary Objective. The aim of the simulation was to find the forcing laws, which provide the close-to reality mastication motions of the components of the system and to investigate the contact zones, interaction forces and their action points as they vary in time. The loss of one or few elements of the mastication system can be restored without significant violations of the overall function provided the general correlations among the mastication system elements, which were influenced during the evolutionary development, have been determined in advance. Materials and methods. We present an approach based on the computer simulation of mastication biomechanics on the basis of finite element (FE) models. They were generated by using the data acquired with both optical and CT scanning systems, which enabled to obtain highly accurate three-dimensional geometrical models of all hard parts of the mastication system of a real dead goat. The surfaces of dental arcs of upper and lower jaws mechanically interacting one against another have been used as the main parts of the model. Results. Using FE models we discovered that mastication forces are correlated directly between dental arches and TMJ surfaces. Factors influencing geometry of dental arches results a destroy jaw function. Conclusion. In the course of this analysis the mastication system of a goat has been considered as a representative of the ruminant individual and enabled to demonstrate the mechanics of the mastication process with insights for evaluation of the similarities and differences against the human mastication. Key words: mastication biomechanics, finite element models, physicaly based simulation, mastication process. Received: 19 11 2014 Accepted for publishing: 25 03 2015 ¹Department of dental and maxillary orthopedics, Faculty of Odontology, Medical Academy, Lithuanian university of health sciences ²Applied Informatics Department, Kaunas University of Technology, Kaunas, Lithuania. Gediminas Skirbutis¹ – D.D.S., doctoral student Algimantas Surna1 – D.D.S., PhD., prof. Rimantas Barauskas² – Dr. habil., prof. Rimas Surna2 – PhD, assoc. prof. Alvydas Gleiznys¹ – D.D.S., PhD., assoc. prof. Address correspondence to Gediminas Skirbutis, Sukileliu 51, LT-50106 Kaunas, Lithuania. E-mail address: gediminasskirbutis@yahoo.com