Finite element analysis of strength characteristics of various resin based restorative materials in Class V cavities

Yaman, SD
Şahin, Melin
Aydin, C
This study investigated the strength characteristics of various composites (Tetric Ceram, Tetric Flow, Prisma AP.H, Synergy Duo Shade, Synergy Compact, and Z 100) and compomers (Compoglass, Compoglass F, Dyract AP, F 2000) that were applied in a Class V cavity of a maxillary central incisor. The study was conducted by using a 3-dimensional finite element approach and in the study ansys package program was used. The tooth model had 294 elements and 420 nodes. The teeth considered were assumed to be subjected to an incisal load of 200 N acting at an angle of 26degrees with the longitudinal axis of the tooth but the effects of different loading angles and different loads were also analysed. Hence, the loads of 100 and 400 N and the loading angles of 0degrees representing bruxism and 90degrees representing a traumatic load were also taken into consideration. The effects of the cavity preparation size were also studied. It was determined that any increase in the loading angle and/or the amount of the load resulted in a proportional increase in the stresses developed in the tooth. Furthermore it was also verified that, as a cavity weakens the tooth structure by creating a discontinuity in an intact tooth, the larger sized cavity preparations inevitably cause larger stresses to be developed in the tooth. Strictly from the mechanical point of view, the stresses developed in the restored teeth were determined to be inversely proportional with the modulus of elasticity of the restorative materials. Therefore within the scope of the study Z 100 was found to be superior to the other materials concerned.


The effect of acquired salivary pellicle on the surface free energy and wettability of different denture base materials
Sipahi, C; Anil, N; Bayramlı, Erdal (Elsevier BV, 2001-03-01)
Objective: The objective of the present study was to evaluate the effect of salivary coating on the wettability and surface free energy of different denture base materials.
DARENDELILER, S; Darendeliler, Haluk; KINOGLU, T (Wiley, 1992-07-01)
An attempt is made for determining the stress distribution in a maxillary central incisor by using a three-dimensional finite element model. The tooth is assumed isotropic, homogeneous, elastic and unsymmetrical. A load of 450 N, 26-degrees to the longitudinal axis is applied on the incisal margin of the tooth. The distribution of compressive, tensile and shear stresses were plotted for the whole tooth structure. It is found that cracks or fractures occur under thc given load.
In vitro Comparison of Autoclave Polymerization on the Transverse Strength of Denture Base Resins
Durkan, Rukiye; ÖZEL, MEHMET BİROL; Bagis, Bora; Usanmaz, Ali (Japanese Society for Dental Materials and Devices, 2008-07-01)
The aim of this study was to determine the effect of autoclave polymerization on the transverse strength of denture base polymers. To this end, 30 rectangular test specimens were fabricated of two heat-polymerized denture base polymers. The test groups were: (I) control. i.e.. conventional water bath to polymerize result by heat at 100 degrees C for 30 minutes; (II) autoclave polymerization at 60 degrees C for 30 minutes followed by 130 degrees C for 10 minutes; and (III) autoclave polymerization at 60 degr...
Cytotoxic effects of four different endodontic materials in human periodontal ligament fibroblasts
GÖRDUYSUS, MELAHAT; AVCU, NİHAL; Gorduysus, Omer; Pekel, Aysel; Baran, Yusuf; Avcu, Ferit; Ural, Ali Ugur (Elsevier BV, 2007-12-01)
The purpose of this study was to compare the cytotoxicity, induced apoptosis and/or necrosis, and apoptotic mechanisms in human periodontal ligament (PDL) fibroblasts treated with four different endodontic materials: White ProRoot mineral trioxide aggregate (MTA) (MTA/Dentsply; Tulsa Dental, Memphis, TN), Diaket (ESPE, Seefeld, Germany), Endion (VOCO, Cuxhaven, Germany), and CYMED 8410 (NANO, Kaohsiung, Taiwan). The effects of these four materials on the viability of PDL fibroblasts were determined by MTT (...
Characterization of primary and permanent teeth using terahertz spectroscopy
KAMBUROĞLU, KIVANÇ; Yetimoglu, N. O.; Altan, Hakan (British Institute of Radiology, 2014-07-01)
Objectives: To analyse teeth samples by using terahertz time-domain spectroscopy (THz-TDS) system that was developed in the laboratory to measure the properties of sliced teeth sections in transmission mode.
Citation Formats
S. Yaman, M. Şahin, and C. Aydin, “Finite element analysis of strength characteristics of various resin based restorative materials in Class V cavities,” JOURNAL OF ORAL REHABILITATION, pp. 630–641, 2003, Accessed: 00, 2020. [Online]. Available: