Adhesion to lithium disilicate glass-ceramics after aging: Resin viscosity and ceramic surface treatment effects

Dapieve, Kiara Serafini; Pilecco, Rafaela Oliveira; Temp, Renatta Wrasse; Villetti, Marcos A.; Pereira, Gabriel Kalil Rocha; Valandro, Luiz Felipe

doi:10.1016/j.jmbbm.2023.105819

Cited by 7 publications

(8 citation statements)

References 26 publications

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“…They found that the MGW was signi cantly lower for the low-viscosity group [26]. The viscosity is also affected by the ller content and geometry, and it is interesting to explore this eld in future studies [21].…”

Section: Discussionmentioning

confidence: 99%

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Zirconia-Reinforced Lithium Silicate Marginal Gap Evaluation Using Various Self-Adhesive Resin Cements by SEM

Shely,

Nissan,

Lugassy

et al. 2024

Preprint

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Background: This study aimed to evaluate the impact of three different self-adhesive resin cements on the marginal gap of full monolithic zirconia-reinforced lithium silicate (ZLS) single crowns. Methods: We divided forty-five typodont teeth, fully prepared for full monolithic crowns, into three groups (fifteen each) for the use of three different self-adhesive resin cements. We created a fourth control group (Temp-bond) by taking five teeth from each group before cementation with self-adhesive resin cements. All forty-five abutments were scanned using Primescan (an intra-oral scanner (IOS)), followed by digital design and grinding of zirconia-reinforced lithium silicate (ZLS) crowns with a four-axis machine. We first cemented the crowns of the control group (Temp-bond) and evaluated the marginal gap using a scanning electronic microscope (SEM). After removing the crowns from the abutments, we cemented the crowns for each group using a different self-adhesive resin cement and observed them under the SEM to evaluate the marginal gap. We used a Kolmogorov-Smirnov test, which found no normal distribution in the study variables (p < 0.05), followed by Mann-Whitney tests (α = .05). Results: The total mean marginal gap of the control group (24.67 ± 4.43 µm) was significantly lower compared to the self-adhesive resin cements groups (p < 0.0005). The total mean marginal gap of the G-cem ONE group (50.48 ± 6.38 µm) was significantly lower compared to the TheraCem group (p < 0.026) and RelyX U200 group (P < 0.008). The total mean marginal gap of the TheraCem group (66.28 ± 7.23 µm) was significantly higher than the G-cem ONE group (p < 0.026) but showed no significant difference with the RelyX U200 group (70.07 ± 10.12 µm, p > 0.110). Conclusions: All four groups showed a clinically acceptable marginal gap (< 120 microns). Although all three groups of self-adhesive resin cements demonstrated a significant increase in the marginal gap compared to Temp-bond group, they were within the limits of clinical acceptability. Regarding the marginal gap, in everyday dentistry it is recommended to use G-cem ONE self-adhesive resin cement for ZLS single crowns.

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Section: Discussionmentioning

confidence: 99%

“…As we increase ller content in the resin cement, we also increase the viscosity of the cement and this also affect the bond strength of glass ceramic, depending on the surface treatment [21].…”

Section: Introductionmentioning

confidence: 99%

Zirconia-Reinforced Lithium Silicate Marginal Gap Evaluation Using Various Self-Adhesive Resin Cements by SEM

Shely,

Nissan,

Lugassy

et al. 2024

Preprint

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“…Similar to the current study, a previous study reported that the RNC is not sufficiently affected by HF because the zirconia crystalline phase in the RNC is acid-resistant, so the bond between the resin cement and RNC can be increased with 10-MDP-containing silane [ 7 ]. Silane application increases the wettability and hydrophilicity of the resin cement, enhancing the physicochemical reactions between it and the ceramic, and is considered the gold standard following HF for glass ceramics [ 8 , 19 , 25 , 30 ]. Silane surrounds silica with methacrylate double carbon bonds that can copolymerize with the resin matrix, enhancing the connection between inorganic filler and resin matrix [ 2 ].…”

Section: Discussionmentioning

confidence: 99%

Adhesive Performance of Resin Cement to Glass-Ceramic and Polymer-Based Ceramic CAD/CAM Materials after Applying Self-Etching Ceramic Primer or Different Surface Treatments

Turunç Oğuzman,

Şişmanoğlu

2023

Materials

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Ensuring optimum bond strength during cementation is vital for restoration success, with the practicality of the process being crucial in clinical practice. This study analyzed the effect of a single-step self-etching ceramic primer (MEP) and various surface treatments on the microshear bond strength (µSBS) between resin cement and glass-ceramic or polymer-based ceramic CAD/CAM materials. Specimens were fabricated from leucite-based glass-ceramic (LEU), lithium disilicate glass-ceramic (LDC), resin nanoceramic (RNC), and polymer infiltrated ceramic network (PICN) (n = 160). They were then classified based on the surface treatments (n = 10): control (no treatment); sandblasting with Al2O3 (AL); etching with hydrofluoric acid (HF); and MEP application. Scanning electron microscopy was used to evaluate the surface topography. µSBS was measured after cementation and thermocycling procedures. Failure modes were examined with a stereomicroscope. Statistical analysis involved two-way analysis of variance and Tukey HSD tests with a significance level of 0.05. µSBS was significantly influenced by both surface treatment and CAD/CAM material type. The most enhanced µSBS values for each material, regarding the surface treatment, were: LEU and LDC, HF; RNC, AL; PICN, AL or HF. MEP significantly increased the µSBS values of CAD/CAM materials except RNC, yet it did not yield the highest µSBS values for any of them.

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“…1 With the improvement of resin cements and adhesive systems, some ceramics can be successfully bonded to tooth structure to improve fracture resistance and provide good alternatives for reestablishing esthetics. 2 The reliable bond to enamel achieved with the adhesive technique has greatly impacted preparation design, resulting in significant preservation of tooth structure. Increased preservation of enamel promotes a superior bond over dentin and improved support of the ceramic restoration.…”

Section: Introductionmentioning

confidence: 99%

“…However, the metal base compromises the esthetics 1 . With the improvement of resin cements and adhesive systems, some ceramics can be successfully bonded to tooth structure to improve fracture resistance and provide good alternatives for reestablishing esthetics 2 …”

Section: Introductionmentioning

confidence: 99%

Veneer crowns in anterior endodontically‐treated teeth: A case report with 1‐year follow‐up

Karimi,

Hashemikamangar,

Farahani

2023

Clinical Case Reports

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Key Clinical MessageVeneer crowns can be used in anterior endodontically‐treated teeth with light occlusal force and enamel substrate consideration as a more conservative approach instead of conventional all ceramic crowns.AbstractAll‐ceramic anterior crowns and veneers have been used widely in dentistry with high clinical success rate. The development of new reinforced ceramics in recent years has led to more use of extended defect‐oriented preparation designs, that is, extended veneers, instead of full crown preparations which are less invasive. A veneer crown is simply a veneer that covers the entire tooth. The preparation preserves remaining enamel and uses a conservative preparation design. Its indication should be carefully raised taking into consideration various factors. The preparation design is crucial to ensure longevity of such restoration. The balance is between sufficient preparation for the material thickness and adequate strength against occlusal load and the enamel preservation. A 24‐year‐old man referred to the restorative department of the Dentistry School of Tehran University of Medical Sciences complaining from his poor esthetics in the maxillary incisors. In clinical and radiographic evaluation, he had open bite, composite discoloration due to corrosion of the pre‐fabricated posts in all four incisors, a periapical lesion in tooth 21 and under‐filled root canal therapy in tooth 22. All four posts and composite restorations were removed and teeth 21 and 22 were retreated. Although the amount of remaining tooth tissue was low, it had enough enamel thickness, especially in the buccal area. Taking into consideration this mixed enamel and dentin substrate, endodontics access, esthetics needs and canine guidance occlusion with no parafunction history, bonded lithium disilicate veneer crowns were selected to restore the maxillary incisors. A 12‐month follow‐up showed promising clinical (healthy gingival tissue and successful restorations) and radiographic (reduced periapical lesion) outcomes.

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Adhesion to lithium disilicate glass-ceramics after aging: Resin viscosity and ceramic surface treatment effects

Cited by 7 publications

References 26 publications

Zirconia-Reinforced Lithium Silicate Marginal Gap Evaluation Using Various Self-Adhesive Resin Cements by SEM

Zirconia-Reinforced Lithium Silicate Marginal Gap Evaluation Using Various Self-Adhesive Resin Cements by SEM

Adhesive Performance of Resin Cement to Glass-Ceramic and Polymer-Based Ceramic CAD/CAM Materials after Applying Self-Etching Ceramic Primer or Different Surface Treatments

Veneer crowns in anterior endodontically‐treated teeth: A case report with 1‐year follow‐up

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