Fracture strength of zirconia monolithic crowns / 대한치과보철학회지
The Journal of Korean Academy of Prosthodontics
; : 157-164, 2006.
Artigo
em Coreano
| WPRIM (Pacífico Ocidental)
| ID: wpr-169867
Biblioteca responsável:
WPRO
ABSTRACT
PURPOSE:
The purpose of this study was to compare the fracture strength of the zirconia monolithic all-ceramic crowns according to the thickness(0.5 mm, 0.8 mm, 1.1 mm) and IPS Empress II ceramic crown of 1.5 mm thickness. MATERIAL ANDMETHOD:
Eight crowns for each of 3 zirconia crown groups were fabricated using CAD/CAM system(Kavo, Germany) and eight Empress II crowns were made from silicone mold and wax pattern. Each crown group was finished in accordance with the specific manufacturer's instruction. All crowns were luted to the metal dies using resin cement and mounted on the testing jig in a universal testing machine. The load was directed at the center of crown with perpendicular to the long axis of each specimen until catastrophic failure occurred. Analysis of variance and Tukey multiple comparison test(p<.05) were applied to the data. RESULTS ANDCONCLUSION:
1. The fracture strength of the zirconia monolithic all-ceramic crown was higher thickness increased(p<.05). 2. The fracture strength of 1.1 mm thickness zirconia monolithic all-ceramic crown was higher than the fracture strength of 1.5 mm thickness IPS Empress II crown(p<.05). 3. The fracture strength of 0.5 mm thickness zirconia monolithic all-ceramic crown exceeded maximum occlusal forces.
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Assunto principal:
Silicones
/
Vértebra Cervical Áxis
/
Força de Mordida
/
Cerâmica
/
Cimentos de Resina
/
Coroas
/
Fungos
Idioma:
Coreano
Revista:
The Journal of Korean Academy of Prosthodontics
Ano de publicação:
2006
Tipo de documento:
Artigo