Durability Studies for Complete Dentures

Abstract

The complete dentures are realized by different acrylic resins and different technologies. These materials are fragile and frequently appear crack and fractures of these dentures. Also, theses materials as well as the technologies of performing these dentures are expensive. In order to avoid the ultimate failure of the complete dentures, for each case there is necessary a numerical simulation as a preliminary stage before the effective performance of the denture. In order to realize the numerical simulation of the complete denture there is necessary to know the mechanical and elastic properties of the acrylic resins. This paper presents the results of experimental investigations performed in order to determine the mechanical and elastic properties of complete denture materials. A 3D laser scanner was used for the elaboration of the geometrical model of the complete dentures. In this way, using the reverse engineering technology there was realized a very accurate geometrical model. Finite element analysis was used to estimate the durability of the same complete dentures. The calculation model was finally validated by a fatigue experimental test.

Acrylates and Their Alternatives in Dental Applications

“…But, despite the efforts made to continuously improve their physical, mechanical and aesthetic properties thereby cause side effects regarding their biocompatibility. These situations may lead to local lesions which can prove extremely unpleasant for the patient [16].…”

“…The results obtained with TNF-alpha test are eloquent for cytotoxic detection of early signs of allergy and inflammation by measuring the endotoxins from the patient serum. It is always recommended to associate multiple types of clinical tests and these should always be histologically confirmed [16].…”

Algorithm for Designing a Removable Complete Denture (RCD) Based on the FEM Analysis of Its Service Life

“…In [ 50 ], the fatigue behavior of the complete denture, which is fabricated from the ‘SUPERACRYL PLUS’ material (Spofadental a.s., Jicin, Czech Republic), was assessed with the ‘ANSYS’ FEM-based commercial software package. In this case, Weller’s curves were drawn for the flat samples.…”

“…The simulation results were presented in terms of the safety factor variation. The authors of [ 50 ] suggested implementing a FEM-based procedure for eliminating the total damage (accidents), which is a characteristic of complete dentures.…”

Thermoplastic Resins used in Dentistry

“…Continuous development and progress of polymer's industry with applications in general and dental medicine was of great importance for the health domain. Using various types of resins for restorations in the oral cavity is beneficial from childhood till geriatric period [1][2][3][4].…”