Fracture Strength, Failure Types, and Weibull Characteristics of Three-Unit Zirconia Fixed Dental Prostheses After Cyclic Loading: Effects of Veneering and Air-Abrasion Protocols

2016 ◽  
Vol 36 (6) ◽  
pp. 901-908 ◽  
Author(s):  
Fernanda Campos ◽  
Rodrigo Souza ◽  
Marco Bottino ◽  
Mutlu Özcan
Keyword(s):  
Cyclic Loading ◽  
Fracture Strength ◽  
Air Abrasion ◽  
Strength Failure ◽  
Dental Prostheses ◽  
Loading Effects ◽  
Fixed Dental Prostheses ◽  
Failure Types

Fracture strength of CAD/CAM Zirconia Fixed Dental Prostheses with different connector surface areas

2021 ◽  
pp. 1
Author(s):  
Bader Alghamdi ◽  
Abdulrahman Alahmadi ◽  
Fahad Alamri ◽  
Mohamed Elmoafy ◽  
Salah Yousief ◽  
...  
Keyword(s):  
Fracture Strength ◽  
Surface Areas ◽  
Dental Prostheses ◽  
Cad Cam ◽  
Fixed Dental Prostheses

scholarly journals Does Printing Orientation Matter? In-Vitro Fracture Strength of Temporary Fixed Dental Prostheses after a 1-Year Simulation in the Artificial Mouth

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 259
Author(s):  
Julian Nold ◽  
Christian Wesemann ◽  
Laura Rieg ◽  
Lara Binder ◽  
Siegbert Witkowski ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Fracture Strength ◽  
Computer Aided Design ◽  
In Vitro Study ◽  
Bending Test ◽  
Dental Prostheses ◽  
Computer Aided ◽  
Subtractive Manufacturing ◽  
Fixed Dental Prostheses

Computer-aided design and computer-aided manufacturing (CAD–CAM) enable subtractive or additive fabrication of temporary fixed dental prostheses (FDPs). The present in-vitro study aimed to compare the fracture resistance of both milled and additive manufactured three-unit FDPs and bar-shaped, ISO-conform specimens. Polymethylmethacrylate was used for subtractive manufacturing and a light-curing resin for additive manufacturing. Three (bars) and four (FDPs) different printing orientations were evaluated. All bars (n = 32) were subjected to a three-point bending test after 24 h of water storage. Half of the 80 FDPs were dynamically loaded (250,000 cycles, 98 N) with simultaneous hydrothermal cycling. Non-aged (n = 40) and surviving FDPs (n = 11) were subjected to static loading until fracture. Regarding the bar-shaped specimens, the milled group showed the highest flexural strength (114 ± 10 MPa, p = 0.001), followed by the vertically printed group (97 ± 10 MPa, p < 0.007). Subtractive manufactured FDPs revealed the highest fracture strength (1060 ± 89 N) with all specimens surviving dynamic loading. During artificial aging, 29 of 32 printed specimens failed. The present findings indicate that both printing orientation and aging affect the strength of additive manufactured specimens. The used resin and settings cannot be recommended for additive manufacturing of long-term temporary three-unit FDPs.

Fracture strength of prefabricated all-ceramic posterior inlay-retained fixed dental prostheses

2010 ◽  
Vol 26 (1) ◽  
pp. 67-75 ◽  
Author(s):  
Christian Mehl ◽  
Klaus Ludwig ◽  
Martin Steiner ◽  
Matthias Kern
Keyword(s):  
Fracture Strength ◽  
Dental Prostheses ◽  
All Ceramic ◽  
Fixed Dental Prostheses

scholarly journals Fracture load and failure types of different veneered polyetheretherketone fixed dental prostheses

2016 ◽  
Vol 20 (9) ◽  
pp. 2493-2500 ◽  
Author(s):  
Simon Taufall ◽  
Marlis Eichberger ◽  
Patrick R. Schmidlin ◽  
Bogna Stawarczyk
Keyword(s):  
Fracture Load ◽  
Dental Prostheses ◽  
Fixed Dental Prostheses ◽  
Failure Types

scholarly journals Inlay-Retained Dental Bridges—A Finite Element Analysis

2021 ◽  
Vol 11 (9) ◽  
pp. 3770
Author(s):  
Monica Tatarciuc ◽  
George Alexandru Maftei ◽  
Anca Vitalariu ◽  
Ionut Luchian ◽  
Ioana Martu ◽  
...  
Keyword(s):  
Finite Element ◽  
Young Patients ◽  
Maximum Pressure ◽  
Class Iii ◽  
Element Analysis ◽  
Dental Prostheses ◽  
Abutment Teeth ◽  
Fixed Dental Prostheses ◽  
Implant Therapy ◽  
The Stability

Inlay-retained dental bridges can be a viable minimally invasive alternative when patients reject the idea of implant therapy or conventional retained full-coverage fixed dental prostheses, which require more tooth preparation. Inlay-retained dental bridges are indicated in patients with good oral hygiene, low susceptibility to caries, and a minimum coronal tooth height of 5 mm. The present study aims to evaluate, through the finite element method (FEM), the stability of these types of dental bridges and the stresses on the supporting teeth, under the action of masticatory forces. The analysis revealed the distribution of the load on the bridge elements and on the retainers, highlighting the areas of maximum pressure. The results of our study demonstrate that the stress determined by the loading force cannot cause damage to the prosthetic device or to abutment teeth. Thus, it can be considered an optimal economical solution for treating class III Kennedy edentation in young patients or as a provisional pre-implant rehabilitation option. However, special attention must be paid to its design, especially in the connection area between the bridge elements, because the connectors and the retainers represent the weakest parts.

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