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Fracture resistance of three different all-ceramic crowns: In vitro study

Purpose: To evaluate the fracture resistance and failure mode of three different all-ceramic crowns; CEREC Bloc, IPS e.Max Press and Cercon in a simulated clinical situation. Methods: 30 extracted maxillary premolars were prepared and randomly assigned to three groups equally according to the type o...

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Main Authors: Alarwali, Ammar M., Kutty, Muralithran Govindan, Al-Haddad, Afaf Y., Gonzalez, Maria Angela G.
Format: Article
Published: Mosher and Linder 2018
Subjects:
RK Dentistry
Online Access:http://eprints.um.edu.my/22590/
http://amjdent.com/Archive/Abstracts/2018/February%202018%20Abstracts.html#Alarwali
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spelling my.um.eprints.225902019-09-26T07:39:28Z http://eprints.um.edu.my/22590/ Fracture resistance of three different all-ceramic crowns: In vitro study Alarwali, Ammar M. Kutty, Muralithran Govindan Al-Haddad, Afaf Y. Gonzalez, Maria Angela G. RK Dentistry Purpose: To evaluate the fracture resistance and failure mode of three different all-ceramic crowns; CEREC Bloc, IPS e.Max Press and Cercon in a simulated clinical situation. Methods: 30 extracted maxillary premolars were prepared and randomly assigned to three groups equally according to the type of crown used. The first was the CEREC group: monolithic feldspathic crowns (CEREC Blocs). The second was the E.Max group: monolithic lithium disilicate crowns (IPS e.Max Press). The third group was the Cercon group: bilayered partially stabilized zirconia crowns (Cercon). All crowns were cemented using dual-cured resin cement (ParaCore). The specimens were then subjected to thermocycling (5-55°C/500 cycles) and loaded to failure at an angle of 45° to the occlusal surface of the crown. Failure data was statistically analyzed using one-way ANOVA and Tukey's HSD post hoc test at a= 0.05. Fractographic analysis was performed to determine the fracture modes of the failed specimens. Results: The mean fracture values for CEREC, E.Max and Cercon groups were 387 ± 60 N, 452 ± 86 N, and 540 ± 171 N, respectively. Significant differences were found between CEREC and Cercon groups (P< 0.05). Catastrophic fracture within the ceramic crown was the major failure mode of the CEREC group. For E.Max and Cercon groups, the major failure mode was exhibiting severe tooth fracture while the ceramic crown remained intact. Mosher and Linder 2018 Article PeerReviewed Alarwali, Ammar M. and Kutty, Muralithran Govindan and Al-Haddad, Afaf Y. and Gonzalez, Maria Angela G. (2018) Fracture resistance of three different all-ceramic crowns: In vitro study. American Journal of Dentistry, 31 (1). pp. 39-44. ISSN 0894-8275 http://amjdent.com/Archive/Abstracts/2018/February%202018%20Abstracts.html#Alarwali
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic RK Dentistry
spellingShingle RK Dentistry
Alarwali, Ammar M.
Kutty, Muralithran Govindan
Al-Haddad, Afaf Y.
Gonzalez, Maria Angela G.
Fracture resistance of three different all-ceramic crowns: In vitro study
description Purpose: To evaluate the fracture resistance and failure mode of three different all-ceramic crowns; CEREC Bloc, IPS e.Max Press and Cercon in a simulated clinical situation. Methods: 30 extracted maxillary premolars were prepared and randomly assigned to three groups equally according to the type of crown used. The first was the CEREC group: monolithic feldspathic crowns (CEREC Blocs). The second was the E.Max group: monolithic lithium disilicate crowns (IPS e.Max Press). The third group was the Cercon group: bilayered partially stabilized zirconia crowns (Cercon). All crowns were cemented using dual-cured resin cement (ParaCore). The specimens were then subjected to thermocycling (5-55°C/500 cycles) and loaded to failure at an angle of 45° to the occlusal surface of the crown. Failure data was statistically analyzed using one-way ANOVA and Tukey's HSD post hoc test at a= 0.05. Fractographic analysis was performed to determine the fracture modes of the failed specimens. Results: The mean fracture values for CEREC, E.Max and Cercon groups were 387 ± 60 N, 452 ± 86 N, and 540 ± 171 N, respectively. Significant differences were found between CEREC and Cercon groups (P< 0.05). Catastrophic fracture within the ceramic crown was the major failure mode of the CEREC group. For E.Max and Cercon groups, the major failure mode was exhibiting severe tooth fracture while the ceramic crown remained intact.
format Article
author Alarwali, Ammar M.
Kutty, Muralithran Govindan
Al-Haddad, Afaf Y.
Gonzalez, Maria Angela G.
author_facet Alarwali, Ammar M.
Kutty, Muralithran Govindan
Al-Haddad, Afaf Y.
Gonzalez, Maria Angela G.
author_sort Alarwali, Ammar M.
title Fracture resistance of three different all-ceramic crowns: In vitro study
title_short Fracture resistance of three different all-ceramic crowns: In vitro study
title_full Fracture resistance of three different all-ceramic crowns: In vitro study
title_fullStr Fracture resistance of three different all-ceramic crowns: In vitro study
title_full_unstemmed Fracture resistance of three different all-ceramic crowns: In vitro study
title_sort fracture resistance of three different all-ceramic crowns: in vitro study
publisher Mosher and Linder
publishDate 2018
url http://eprints.um.edu.my/22590/
http://amjdent.com/Archive/Abstracts/2018/February%202018%20Abstracts.html#Alarwali
_version_ 1646210284909494272
score 13.211869

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