Effect of cement film thickness on the fracture resistance of a machinable glass-ceramic

Ss, Scherrer; Wg, de Rijk; Uc, Belser; Jm, Meyer

doi:10.1016/0109-5641(94)90028-0

Cited by 98 publications

(81 citation statements)

References 5 publications

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“…To isolate the final surface finishing method and type of ceramic material as the only variables in this study, a simple experimental design was adopted whereby rectangular ceramic plates adhesively luted to dentin were loaded with pressure only at one point at the center. Although this experimental design was also adopted in previous studies 17,19) , further studies are required to verify if different test methods would yield consistent results.…”

Section: Discussionmentioning

confidence: 99%

“…In a bid to improve the fracture strength, studies on this issue have identified several factors that influence the fracture resistance of all-ceramic restorations, namely, type of ceramic material [2][3][4][5][6] , surface finish of all-ceramic restoration 2,[7][8][9][10][11][12][13][14][15][16] , cement thickness [17][18][19] , and type of luting agent 3,[20][21][22][23][24][25] . On the preferred surface treatment for ceramic restorations, glazing is generally advocated to improve their strength 2,12,13,26,27) and reduce their surface roughness 12,16,26,[28][29][30] .…”

Section: Introductionmentioning

confidence: 99%

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Effect of overglazed and polished surface finishes on the compressive fracture strength of machinable ceramic materials

et al. 2010

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Controversy prevails over the effect of overglazing on the fracture strength of ceramic materials. Therefore, the effects of different surface finishes on the compressive fracture strength of machinable ceramic materials were investigated in this study. Plates prepared from four commercial brands of ceramic materials were either surface-polished or overglazed (n=10 per ceramic material for each surface finish), and bonded to flat surfaces of human dentin using a resin cement. Loads at failure were determined and statistically analyzed using two-way ANOVA and Bonferroni test. Although no statistical differences in load value were detected between polished and overglazed groups (p>0.05), the fracture load of Vita Mark II was significantly lower than those of ProCAD and IPS Empress CAD, whereas that of IPS e.max CAD was significantly higher than the latter two ceramic materials (p<0.05). It was concluded that overglazed and polished surfaces produced similar compressive fracture strengths irrespective of the machinable ceramic material tested, and that fracture strength was material-dependent.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of overglazed and polished surface finishes on the compressive fracture strength of machinable ceramic materials

et al. 2010

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“…Currently, the restorations for fracture load tests are differently cemented in various studies [1][2][3][4] . Zinc oxide-phosphate, glass ionomer or adhesive cements are used [1][2][3][4][5][6][7][8] . Zirconia shows high values of flexural strength 9) ; lithium disilicate exhibits lower flexural strength than zirconia 10) .…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2013

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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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“…Unfortunately, there is a lack of studies on damage propagation in dental ceramic structures supported by dentin. All-ceramic restorations should be firmly bonded to the underlying tooth structure with a luting agent to improve fracture resistance 15) . Recent studies have further demonstrated that luting agents restricted and resisted against the propagation of cracks from the internal surface of the bonded resin 15,16) .…”

Section: Introductionmentioning

confidence: 99%

“…All-ceramic restorations should be firmly bonded to the underlying tooth structure with a luting agent to improve fracture resistance 15) . Recent studies have further demonstrated that luting agents restricted and resisted against the propagation of cracks from the internal surface of the bonded resin 15,16) . Although there is evidence-based data for the effect of luting agents on all-ceramic crowns 17,18) , the thickness effect of each layer in ceramic-cementdentin structures is not well studied.…”

Section: Introductionmentioning

confidence: 99%

Influence of Layer Thickness on Stress Distribution in Ceramic-Cement-Dentin Multilayer Systems

2008

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The effects of dentin and cement thicknesses on stress level and distribution of crack propagation in ceramic-cement-dentin multilayer complex were analyzed. Custom-designed finite element analysis program based on JL Analyzer was used to analyze the stress distribution and present the maximum principal stress locations. In Zirconia, all the maximum stress values were above 100 MPa. In Empress II, they ranged between 50 and 105 MPa, which were approximately one-third of those of Zirconia. In Feldspathic, the maximum stress values were generally lower than 50 MPa. In all groups with 30 μm cement thickness, the highest values were observed at the bottom surface. For cement thicknesses at 50, 70, and 100 μm, maximum stress was found to occur at the top surface. However, changes in dentin thickness did not bring about significant changes in maximum stress values. Results of this study revealed the roles played by the following variables in the failure of a multilayer structure: cement thickness had a minor influence, dentin thickness exerted no influence, but the thickness and type of ceramic system played a significant role.

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Effect of cement film thickness on the fracture resistance of a machinable glass-ceramic

Cited by 98 publications

References 5 publications

Effect of overglazed and polished surface finishes on the compressive fracture strength of machinable ceramic materials

Effect of overglazed and polished surface finishes on the compressive fracture strength of machinable ceramic materials

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

Influence of Layer Thickness on Stress Distribution in Ceramic-Cement-Dentin Multilayer Systems

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