Characterizing ceramics and the interfacial adhesion to resin: II- the relationship of surface treatment, bond strength, interfacial toughness and fractography

Bona, Álvaro Della

doi:10.1590/s1678-77572005000200002

Cited by 51 publications

(35 citation statements)

References 54 publications

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“…Nevertheless many parameters like surface treatment, polishing or air-abrading before etching, crosshead speed or storage conditions were not consistent. Besides all the differences, in one point a high consensus was found: The fracture pattern plays an important role [45,46]. Almost every specimen showed a similar pattern with a cohesive part in the glass-ceramic.…”

Section: Discussionmentioning

confidence: 99%

Flexural Strength of Preheated Resin Composites and Bonding Properties to Glass-Ceramic and Dentin

2016

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To test the impact of preheating (25, 37, 54, or 68 °C) of TetricEvoCeram (TEC), FiltekSupremeXT (FSXT), and Venus (V) on flexural strength (FS), shear bond strength (SBS) and interfacial tension (IFT). FS was tested with TEC and FSXT. For SBS, glass-ceramic and human dentin substrate were fabricated and luted with the preheated resin composite (RC). SBSs of 1500 thermal cycled specimens were measured. For IFT, glass slides covered with the non-polymerized RC were prepared and contact angles were measured. Data were analyzed using 2/1-way ANOVA with Scheffé-test, and t-test (p < 0.05). Preheated TEC (37–68 °C) showed higher FS compared to the control-group (25 °C) (p < 0.001). FSXT presented higher FS than TEC (p < 0.001). For SBS to dentin higher values for FSXT than TEC were found. The preheating temperature showed no impact on SBS to dentin. SBS to glass-ceramic revealed a positive influence of temperature for TEC 25–68 °C (p = 0.015). TEC showed higher values than V and FSXT (p < 0.001). IFT values increased with the preheating temperature. A significant difference could be observed in every RC group between 25 and 68 °C (p < 0.001).

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Section: Discussionmentioning

confidence: 99%

Flexural Strength of Preheated Resin Composites and Bonding Properties to Glass-Ceramic and Dentin

2016

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“…The luting procedure of ceramic restorations requires several sequential steps, and the use of adhesive systems associated with resin-based luting agents is very common 1,2,12 . In addition to etch-andrinse adhesives, self-etching systems are used with the purpose of eliminating the rinsing/drying steps and facilitating the bonding procedure.…”

Section: Introductionmentioning

confidence: 99%

Luting glass ceramic restorations using a self-adhesive resin cement under different dentin conditions

et al. 2010

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ObjectivesThe aim of this study was to investigate the bond strength of ceramic restorations luted using a self-adhesive resin cement (RelyX Unicem, 3M ESPE) under different dentin conditions.Material and MethodsIn the experimental groups, ceramic restorations were luted to bovine incisors with RelyX Unicem under the following conditions: [Dry dentin]: surface was dried using air stream for 15 s; [Moist dentin]: excess dentin moisture was removed with absorbent paper; [Bonding agent]: Clearfil SE Bond (Kuraray) self-etching adhesive system was previously applied to dentin. In the Control group, cementation was done using an etch-and-rinse adhesive (Excite DSC) and Variolink II resin cement (Ivoclar Vivadent). Photoactivation of the resin cements was performed with UltraLume LED 5 unit (Ultradent). The restorations (n=5 per group) were sectioned into beams and microtensile testing was carried out. Data were subjected to ANOVA and Tukey's test (p<0.05). Failure modes were classified under Scanning Electron Microscopic (SEM) (×120 magnification).ResultsThe bond strength was dependent on the moisture status of the dentin. Bond strength in the "dry dentin group" was significantly lower than that of all other groups, which showed similar results. A predominance of mixed failures was detected for the control group, while a predominance of adhesive failures was observed for the "bonding agent" and "dry dentin" groups. The "moist dentin" group presented predominantly cohesive failures within the luting material. The previous application of a self-etching adhesive showed no significant effect.ConclusionsOnly excess dentin moisture should be removed for the cementation of ceramic restorations with self-adhesive resin cements.

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“…Cements characteristics as high wear abrasion strength, film thickness, and wettability affect the ceramic restoration success [6][7][8]. The maintenance of gingival health and longevity of a dental prosthesis have a closely relation to these marginal sealing [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Impact of excess cement removal on vertical misfit and cement line quality in onlays

Soares¹,

Inoue²,

Naves³

et al. 2012

BDS

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Aim: To evaluate the vertical misfit and cement line quality of partial ceramic restorations cemented with resin luting cements using two different methods for cement remove excess. Materials & Methods: Lithium di-silicate restorations were fabricated and cemented at 24 human molars that receive onlay type preparations. The specimens were randomly divided in two groups (n=12): Group 1 (G1) where the cement excess was removed at pre-gel stage and Group 2 (G2) with the cement excess removed after the polymerization. The vertical misfits at cement line were measurements twice, before and after cementation. Epoxy resin replicas of the specimens were obtained and the cement line quality was analyzed with the scanning electron microscope before and after the finishing and polishing procedures and classified as unsatisfactory, acceptable or good conditions. The vertical misfits values were submitted to Student test (p<0.05) and the quality line data were analyzed with Mann-Whitney for independent samples (p<0.05) and Wilcoxon test for paired specimens (p<0.05).Results: The statistical analysis showed that vertical misfit and the cement line quality presented no difference values to G1 and G2. However, finishing and polishing procedures affect positively the cement line quality in the both groups. Conclusion: The excess cement removal methods had no influence on the vertical misfit and cement line quality for the restorations. The finishing and polishing procedures improved the cement line quality in both groups.

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Characterizing ceramics and the interfacial adhesion to resin: II- the relationship of surface treatment, bond strength, interfacial toughness and fractography

Cited by 51 publications

References 54 publications

Flexural Strength of Preheated Resin Composites and Bonding Properties to Glass-Ceramic and Dentin

Flexural Strength of Preheated Resin Composites and Bonding Properties to Glass-Ceramic and Dentin

Luting glass ceramic restorations using a self-adhesive resin cement under different dentin conditions

Impact of excess cement removal on vertical misfit and cement line quality in onlays

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