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Influence of cementation and cement type on the fracture load testing methodology of anterior crowns made of different materials


Stawarczyk, Bogna; Beuer, Florian; Ender, Andreas; Roos, Malgorzata; Edelhoff, Daniel; Wimmer, Timea (2013). Influence of cementation and cement type on the fracture load testing methodology of anterior crowns made of different materials. Dental Materials Journal, 32(6):888-895.

Abstract

To evaluate the influence of cementation on fracture load of anterior crowns made of CAD/CAM-resin-blocks (ART), leucite-reinforced glass-ceramics (LRG), lithium disilicate ceramics (LIT), veneered zirconia (ZRO) and veneered alloy (DEG). Each crown group (n=15/subgroup) was cemented on the metal abutment as follows: i. using glass ionomer, ii. using self-adhesive resin cement, and iii. not cemented. Crowns were tested and analyzed with 2-way and 1-way ANOVA (Scheffé test), and Weibull statistics (p<0.05). Within LRG, self-adhesive cemented subgroup showed higher fracture load compared to other groups (p<0.001). Among DEG, lower results were measured for non-cemented crowns than for cemented (p<0.001). For ART, LIT and ZRO no influence of cementation was observed. For fracture load test methodology, metal ceramic crowns should be generally cemented. Glass-ceramic crowns should be cemented using adhesive cement. Cementation and cement type did not have an influence on the fracture load results for resin, zirconia or lithium disilicate crowns.

Abstract

To evaluate the influence of cementation on fracture load of anterior crowns made of CAD/CAM-resin-blocks (ART), leucite-reinforced glass-ceramics (LRG), lithium disilicate ceramics (LIT), veneered zirconia (ZRO) and veneered alloy (DEG). Each crown group (n=15/subgroup) was cemented on the metal abutment as follows: i. using glass ionomer, ii. using self-adhesive resin cement, and iii. not cemented. Crowns were tested and analyzed with 2-way and 1-way ANOVA (Scheffé test), and Weibull statistics (p<0.05). Within LRG, self-adhesive cemented subgroup showed higher fracture load compared to other groups (p<0.001). Among DEG, lower results were measured for non-cemented crowns than for cemented (p<0.001). For ART, LIT and ZRO no influence of cementation was observed. For fracture load test methodology, metal ceramic crowns should be generally cemented. Glass-ceramic crowns should be cemented using adhesive cement. Cementation and cement type did not have an influence on the fracture load results for resin, zirconia or lithium disilicate crowns.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Epidemiology, Biostatistics and Prevention Institute (EBPI)
04 Faculty of Medicine > Center for Dental Medicine > Clinic for Preventive Dentistry, Periodontology and Cariology
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:2013
Deposited On:15 Jan 2014 10:24
Last Modified:05 Apr 2016 17:23
Publisher:Japanese Society for Dental Materials and Devices
ISSN:0287-4547
Additional Information:Change of name: Timea Lamper to Timea Wimmer
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.4012/dmj.2013-147
PubMed ID:24240896

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