Application of finite element method for the analysis of a prefabricated post-and-core – tooth system

• Autorzy: Loska S. , Paszenda Z. , Basiaga M. , Kiel-Jamrozik M.
• Języki publikacji: EN

Abstrakty

EN

In recent years in the area of prosthetic treatment, great emphasise was put on leaving a residual dentition inside mouth. In a teeth after endodontic treatment or with broken crown a healthy root is a natural implant that can be used for further reconstruction. Use of posts-and-cores is one of possible methods of widely damaged tooth crowns treatment. There is a lot of different types of prefabricated posts-and-cores. Numerical analysis of the prefabricated post-and-core – tooth system was conducted by the authors. The prefabricated Flexi-Flange post-and-core from the Essential Dental System was selected for the analysis. The scope of the analysis has covered calculation of displacements, strains and stresses in each elements of the analysed system – depending on the applied post material and load applied on the prosthetic crown. The analysis reviled that there is a significant influence of the type of the post material and load on results. It was found that the most unfavourable variant of load is the one with force applied on the labial surface at the angle of 45° to the axis of the tooth. The results of the analysed system provided a valuable guidelines for proper design of its form, geometrical properties, selection of the mechanical properties and the optimal strengthening degree of metallic biomaterial.

Słowa kluczowe

EN

prefabricated posts; prosthetic reconstructions; finite element analysis

PL

korona protetyczna; rekonstrukcja protetyczna; analiza metodą elementów skończonych; protetyka stomatologiczna

• Wydawca: Foundation for Young Scientists
• Czasopismo: Challenges of Modern Technology
• Rocznik: 2015
• Tom: Vol. 6, no. 1
• Strony: 11--22
• Opis fizyczny: Bibliogr. 13 poz., rys., tab.

Twórcy

autor

Loska S.

• Silesian University of Technology, Faculty of Biomedical Engineering, Department of Biomaterials and Medical Devices Engineering, ul. Gen. de Gaulle`a 66, 41-800 Zabrze, Poland

autor

Paszenda Z.

• Silesian University of Technology, Faculty of Biomedical Engineering, Department of Biomaterials and Medical Devices Engineering, ul. Gen. de Gaulle`a 66, 41-800 Zabrze, Poland

autor

Basiaga M.

• Silesian University of Technology, Faculty of Biomedical Engineering, Department of Biomaterials and Medical Devices Engineering, ul. Gen. de Gaulle`a 66, 41-800 Zabrze, Poland

autor

Kiel-Jamrozik M.

• Silesian University of Technology, Faculty of Biomedical Engineering, Department of Biomaterials and Medical Devices Engineering, ul. Gen. de Gaulle`a 66, 41-800 Zabrze, Poland

Bibliografia

• [1] Zielińska R., Dejak B., Suchorzewski A.: Porównanie własności zębów odbudowanych wkładami koronowo-korzeniowymi lanymi i standardowymi kompozytowymi wzmacnianymi włóknami szklanymi na podstawie piśmiennictwa, Protetyka Stomatologiczna, LX (1), pp. 37-43, 2010
• [2] Spiechowicz E.: Protetyka stomatologiczna. Podręcznik dla studentów, Wydawnictwo Lekarskie PZWL, Warszawa, 2010
• [3] Tańska M., Wyciślok P., Mierzwińska-Nastalska E.: Comparison of stress levels related to cement elasticity in selected standard posts cemented in teeth models: Computer simulations, Protetyka Stomatologiczna, LX (4), pp. 260-266, 2010
• [4] Dejak B.: Comparison of the strength of teeth restored by individual cast dowels and prefabricated fiberglass-reinforced composite posts, Protetyka Stomatologiczna, LX (2), pp. 112- 123, 2010
• [5] Maceri F., Martignoni M., Vairo G.: Mechanical behaviour of endodontic restorations with multiple prefabricated posts: A finite-element approach, Journal of Biomechanics, 40, pp. 2386–2398, 2007
• [6] Lewgoy H. R., Youssef M. N., Matson M. R., Bocangel J. A. J. S., Netto C. A., Amore R.: Finite elements study of the Flexi Post and Flexi Flange post systems in a maxillary central incisor, Pesquisa Odontológica Brasileira, 17(2), pp. 132-136, 2003
• [7] Instruction for Flexi-Flange [web page] http://www.edsdental. com/instructions.htm (Accessed on 29 Sept. 2014)
• [8] Loska S., Paszenda Z., Basiaga M., Kajzer W.: Analiza numeryczna wkładu koronowo-korzenio wego z wykorzystaniem metody elementów skoń czonych w: L. Leniowska, Z. Nawrat: Postępy Inżynierii Biomedycznej, Rzeszów, 2013.
• [9] Garbin C. A., Spazzin A. O., Meira-Júnior A. D., Loretto S. C., Lyra A. M. V. C., Braz R.: Biomechanical behavior of a fractured maxillary incisor restored with direct composite resin only or with different post systems, International Endodontic Journal, 43 (12), pp. 1098-1107, 2010
• [10] Eraslan O., Aykent F., Yücel M. T., Akman S.: The finite element analysis of the effect of ferrule height on stress distribution at post-and-core-restored all-ceramic anterior crowns, Clinical Oral Investigations, 13, pp. 223-227, 2009
• [11] de Castro Albuquerque R., Polleto L. T., Fontana R. H., Cimini C. A., Stress analysis of an upper central incisor restored with different posts, Journal of Oral Rehabilitation, 30 (9), pp. 936–943, 2003
• [12] Coelho C. S., Biffi J. C., Silva G. R., Abrahao A., Campos R. E., Soares C. J.: Finite element analysis of weakened roots restored with composite resin and post. Dental Materials Journal, 28 (6), pp. 671-678, 2009
• [13] Mattos C. M. A., Las Casas E. B., Dutra I. G. R., Sousa H. A., Guerra S. M. G.: Numerical analysis of the biomechanical behaviour of a weakened root after adhesive reconstruction and post-core rehabilitation, Journal of Dentistry, 40, pp. 423-432, 2012