Shear bond strength and microleakage of novel glass-ionomer cements: An In vitro Study

Meral, Ece; Baseren, NM

doi:10.4103/njcp.njcp_543_18

Cited by 18 publications

(31 citation statements)

References 1 publication

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“…Zirconomer mostly showed mixed failures which are in accordance with the study by Meral and Baseren [ 34 ]. This may imply that the interfacial bond strength is higher than the inherent strength of the material responsible for causing cohesive and mixed failure [ 35 ].…”

Section: Discussionsupporting

confidence: 90%

A comparative evaluation of microleakage and dentin shear bond strength of three restorative materials

Kumari

Singh

2022

Biomaterial Investigations in Dentistry

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Aim To evaluate the microleakage and dentin shear bond strength of two glass containing restorative materials, Zirconomer and Cention N, and to compare them with a conventional glass ionomer cement (GIC) (GC Fuji II). Materials and methods Zirconomer (Shofu) and GC Fuji II (GC Corp.) are self-curing GICs whereas Cention N (IvoclarVivadent) also offers a self-curing option as well as the option of light-curing using an adhesive. For evaluating microleakage, standardized class V cavities were prepared on the buccal surface of 30 premolars. The cavities were restored with one of the three restorative materials ( n = 10) according to manufacturers’ instructions, Cention N being used with an adhesive (Te-EconomBond, IvoclarVivadent) and in the light-curing mode. After restoration and thermocycling, the microleakage assessment was made under a stereomicroscope at 40x magnification following immersing of the teeth in 0.5% methylene blue dye and buccolingual sectioning. For evaluating dentin shear bond strength, the occlusal surface of the 30 premolars was ground flat, and cylinders of the three restorative materials ( n = 10) were bonded to the occlusal surface according to manufacturers’ instructions, Cention N being used with an adhesive (Te-EconomBond, IvoclarVivadent) and in the light-curing mode. Following 24-h storage at 100% humidity, the dentin shear bond strength was measured and the fracture mode was determined under a stereomicroscope at 10× magnification. Data were statistically analyzed using Mann–Whitney and Scheffé tests ( p = .05). Results Cention N displayed significantly less microleakage than did Zirconomer and GC Fuji II at occlusal as well as the gingival margins. Dentin shear bond strength varied significantly between 5.15 and 9.89 MPa with Cention N showing the highest bond strength and GC Fuji II the lowest. Conclusion In this in vitro evaluation, Cention N consistently performed better than the conventional GIC (GC Fuji II) as well as Zirconomer.

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Section: Discussionsupporting

confidence: 90%

A comparative evaluation of microleakage and dentin shear bond strength of three restorative materials

Kumari

Singh

2022

Biomaterial Investigations in Dentistry

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“…This suggests that GIC incorporated only with smear remnants in its attachment to dentin. In a study by Meral and Baseren (), the mean SBS of the EQUIA Fil to dentin was 7.12 MPa and the mode with the most failures was cohesive (93.3%). The difference between these results may be explained by the thickness of the smear layer.…”

Section: Discussionmentioning

confidence: 96%

Bond strength and adaptation of pulp capping materials to dentin

Karadaş

Atıcı

2020

Microscopy Res & Technique

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This study evaluated the shear bond strength (SBS) and internal marginal adaptation of pulp-capping materials to dentin. Flat occlusal deep dentin surfaces were produced and randomly assigned to two groups (sound or artificial caries-affected dentin). The specimens in each group were assigned to one of seven subgroups according to the materials used: Biodentine, Theracal LC, Ultra-Blend plus, Calcimol LC, ApaCal ART, EQUIA Forte, and Ionoseal. Buildups (3-mm inner diameter and 2-mm deep) were made over the dentin surfaces. The bonded specimens were tested under shear forces at a crosshead speed of 0.8 mm/min and fracture modes were determined using a stereomicroscope at 25× magnification. The materials were applied to the pulp floor of prepared Class I cavities and then the cavities were restored with composite resin. Restored molar teeth were subjected to 5,000 thermocycles and sectioned in a bucco-lingual direction. Resin replicas were made to determine the adaptation at the pulp floor with scanning electron microscopy. Significant differences were determined among both bond strengths and gap formations of the materials. EQUIA Forte applied to both dentin substrates had a significantly higher SBS than the other materials. The bond strength of each material was not influenced by the dentin condition. Biodentine (3.03%), EQUIA Forte (7.83%), and Theracal LC (13.37%) had lower gap formations compared to other materials but were not significantly different from each other. K E Y W O R D S adaptation, bond strength, pulp capping, replica, scanning electron microscopy

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“…However, because of their tendency to debonding and bulk fracture, they have limited indications as definitive materials [12] and lower dentin bond strength than resin composites [18], a limitation that cannot be improved by use of an adhesive system. Moreover, their aesthetic outcomes are worse than those of resin composites, and microleakage at restorative margins has been reported [19].…”

Section: Discussionmentioning

confidence: 99%

Flexural properties and dentin adhesion in recently developed self-adhesive bulk-fill materials

et al. 2021

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This study investigated the flexural properties, shear bond strength (SBS) and interface to dentin of three recently developed selfadhesive bulk-fill materials. Methods: Bars of Surefil One (SO), Cention N (CN), Activa BioActive Restorative (AB) and EQUIA Forte HT Fil (EQUIA) were tested for flexural strength and flexural modulus in self-curing and light-curing modes. In addition, SBS to dentin was tested in specimens without pretreatment and after application of universal adhesive (Scotchbond Universal). EQUIA was used as the control material. Results: The flexural properties were significantly better in light-curing mode for all materials except CN. CN had the highest SBS values after universal adhesive application (33.8 MPa), and SO had the highest SBS without pretreatment (20.9 MPa). Conclusion: The mechanical and adhesive properties of these new materials varied widely.

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Shear bond strength and microleakage of novel glass-ionomer cements: An In vitro Study

Cited by 18 publications

References 1 publication

A comparative evaluation of microleakage and dentin shear bond strength of three restorative materials

A comparative evaluation of microleakage and dentin shear bond strength of three restorative materials

Bond strength and adaptation of pulp capping materials to dentin

Flexural properties and dentin adhesion in recently developed self-adhesive bulk-fill materials

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