Mechanical behavior of CAD/CAM occlusal ceramic reconstruction assessed by digital color holography

2018 ◽  
Vol 34 (8) ◽  
pp. 1222-1234 ◽  
Author(s):  
H. Xia ◽  
P. Picart ◽  
S. Montresor ◽  
R. Guo ◽  
J.C. Li ◽  
...  
2019 ◽  
Vol 18 ◽  
pp. e191573
Author(s):  
Silas Monteiro Borges ◽  
Stephanie Francoi Poole ◽  
Izabela Cristina Maurício Moris ◽  
Aloísio Oro Spazzin ◽  
Adriana Cláudia Lapria Faria ◽  
...  

Aim: This study evaluated the mechanical behavior of implant-supported crowns obtained by different fabrication technique after thermomechanical cycling. Methods: Thirty-two external hexagon dental implants were divided into four groups (n=10): CC – conventional casting with torch; EI – electromagnetic induction casting; PL – plasma casting; and CAD-CAM – milling through computer-aided design and computer-aided manufacturing. Vickers microhardness of the specimens were made before and after the thermomechanical cycling, and then subjected to fracture load. Fracture pattern was evaluated. Results: No significant difference was observed comparing the microhardness before and after thermomechanical cycling. CAD-CAM group presented significant lower microhardness than the other groups. No significant statistical difference was showed on fracture load between the groups. The CAD-CAM and PL presented lower number of failure by plastic deformation. Conclusion: The manufacturing techniques affected the mechanical behavior and the failure pattern of implant-supported crowns tested.


2021 ◽  
Vol 125 (1) ◽  
pp. 117-125 ◽  
Author(s):  
Nereu Roque Dartora ◽  
Izabela Cristina Maurício Moris ◽  
Stephanie Francoi Poole ◽  
Ataís Bacchi ◽  
Manoel Damião Sousa-Neto ◽  
...  
Keyword(s):  

Author(s):  
Ehsan Homaei ◽  
Khalil Farhangdoost ◽  
James Kit Hon Tsoi ◽  
Jukka Pekka Matinlinna ◽  
Edmond Ho Nang Pow
Keyword(s):  

Author(s):  
B. J. Hockey

Ceramics, such as Al2O3 and SiC have numerous current and potential uses in applications where high temperature strength, hardness, and wear resistance are required often in corrosive environments. These materials are, however, highly anisotropic and brittle, so that their mechanical behavior is often unpredictable. The further development of these materials will require a better understanding of the basic mechanisms controlling deformation, wear, and fracture.The purpose of this talk is to describe applications of TEM to the study of the deformation, wear, and fracture of Al2O3. Similar studies are currently being conducted on SiC and the techniques involved should be applicable to a wide range of hard, brittle materials.


1997 ◽  
Vol 24 (7) ◽  
pp. 540-548 ◽  
Author(s):  
N. KAWAHATA ◽  
H. ONO ◽  
Y. NISHI ◽  
T. HAMANO ◽  
E. NAGAOKA
Keyword(s):  

1984 ◽  
Vol 63 (10) ◽  
pp. 9
Author(s):  
J C Bowell
Keyword(s):  

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