Two-body wear and fracture behaviour of an experimental paediatric composite crown in comparison to zirconia and stainless steel crowns dependent on the cementation mode

Keßler, Andreas; Kapor, Svetlana; Erdelt, Kurt; Hickel, Reinhard; Edelhoff, Daniel; Syrek, Andreas; Güth, Jan‐Frederik; Kühnisch, Jan

doi:10.1016/j.dental.2020.11.010

Cited by 17 publications

(4 citation statements)

References 31 publications

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“…Dental materials' surface roughness defines clinical success and aesthetic appearance of the materials. The materials' high surface roughness increases plaque accumulation on restorations which leads to caries and gingival irritation [26,27].…”

Section: Discussionmentioning

confidence: 99%

In vitro evaluation of wear resistance, microhardness and superficial roughness of different fissure sealants after aging

2024

JOCPD

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The aim of this study was to compare the aging effects on wear, surface roughness and microhardness of fissure sealants having varying contents. Four fissure sealant types were used in the study: Aegis (Bosworth, USA) (Group A), Beautisealant (Shofu, Japan) (Group B), Clinpro (3M, USA) (Group C), and Ultraseal XT/Hydro (Ultradent, USA) (Group U). Hundred disc-shaped specimens (5 mm diameter/3 mm width) were designed according to the manufacturer's instructions and assigned for microhardness/Vickers Hardness (VHN), surface roughness, and wear tests. Thermocycling (10,000 times/5-55 • C ± 2 • C/20 s) and chewing simulator (75,000 times/49 N) were applied as the aging procedures. Measurements were made before and after the aging procedures. The specimens were examined by Scanning Electrone Microscopy (SEM). Data was statistically analyzed through Kruskal Wallis, Wilcoxon and Welch tests. The highest and the lowest changes in mean microhardness values were obtained for Group U (9.88 ± 1.46) and Group A (4.40 ± 0.46), respectively; and a significant difference (p < 0.001) was found between the mean changes in microhardness numbers (U > B > C > A). The median roughness values had no significant difference; the surface roughness had the highest mean differences in Groups U and C (U = C > A > B). Significant difference was found between the mean changes in wear/weight values (p < 0.001); the highest and the lowest mean weight losses were recorded in Group U (0.0097 ± 0.0003 gr), and Group C (0.0041 ± 0.0006 gr), respectively (U > B > A > C). The highest physical changes were determined in Group U after the aging procedures. It is concluded that the aging procedures affect physical structures of all test materials with varying degrees, however Ultraseal XT/Hydro is the most affected. The individual treatment needs and material properties must be considered to select a fissure sealant material.

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Section: Discussionmentioning

confidence: 99%

In vitro evaluation of wear resistance, microhardness and superficial roughness of different fissure sealants after aging

2024

JOCPD

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“…The wear behavior of crown restoration materials is essential when considering the material's durability and wear on the opposing teeth. Wear tests include the pin-on-disk method and the reciprocating sliding test, which evaluate the wear of crown restorations caused by occluding and grinding [30][31][32][33]. This study conducted a two-body wear test using a reciprocating sliding test to investigate the wear behavior of glass-ceramic CAD/CAM blocks against bovine teeth.…”

Section: Discussionmentioning

confidence: 99%

The Wear Behavior of Glass-Ceramic CAD/CAM Blocks against Bovine Enamel

Someya,

Kasahara,

Takemoto

et al. 2023

Materials

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The wear of enamel and crown restorative materials often occur by occlusion. The purpose of this study was to evaluate the wear volume between glass-ceramics used for CAD/CAM blocks (lithium disilicate: Initial LiSi block (LIS), IPS e.max CAD (IPS), zirconia-reinforced lithium silicate glass-ceramics: Celtra DUO (DUO), VITA Suprinity (VITS) and feldspar-based glass-ceramics: Vitablocs Mark II (MAK)) and bovine tooth enamel using a two-body wear test, the hardness, three-point bending strength, micro-structure and the element components of glass-ceramics. The data were analyzed using a one-way analysis of variance and Tukey’s multiple comparison test (α = 0.05). IPS and DUO with relatively large size crystal gain had significantly larger abrader wear volumes. Zirconia-reinforced lithium silicate glass-ceramics (DUO, VITS) caused significantly greater wear volume in antagonist enamel. MAK with scale-shape crystals grains produced distinct scratches after wear tests, both in the material itself and in the enamel. A strong correlation between the mechanical properties (hardness, three-point bending strength) and wear volume could not be confirmed. The type of glass-ceramic, size, and shape of the crystal grains affected the wear behavior of the glass-ceramics for CAD/CAM blocks. Therefore, dentists should consider that wear behavior varies with crystal structure, size, and shape in glass-ceramics for CAD/CAM blocks.

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“…Resin-modifed glass ionomer cements ofer the advantages of higher bond strength, lower solubility, and fuoride release [1][2][3][4]. Terefore, resin-modifed glass ionomer cement (RMGIC) is clearly a superior choice and is recommended for clinical use over conventional GIC, particularly for applications such as cementation of metal or ceramic prosthesis and orthodontic brackets [5,6].…”

Section: Introductionmentioning

confidence: 99%

Effects of Curing Mode on the Bond Strength of Resin-Modified Glass Ionomer Cements

Lin

2022

Advances in Materials Science and Engineering

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The purpose of this study was to evaluate the bond strength of resin-modified glass ionomer cements (RMGICs) with different curing mode. RelyX Luting 2(RL) and Nexus RMGI (NR) were bonded to enamel, dentin, cobalt-chromium alloy, and ceramic using light-curing and chemical-curing modes, separately. The bond strength of light curing was higher than that of chemical curing for all groups. The bond strength of RL and NR in the light-cured group was significantly higher than those in chemical curing for both enamel and cobalt-chromium alloy (P < 0.05). The most common mode of adhesive fracture was cohesive fracture. The difference of adhesive strength resulted from the difference of micromechanical interlocking of adhesive which came from the cohesive strength of RMGICs with light curing. FT-IR showed that light curing was followed by chemical curing, but the chemically cured samples could not be cured without an external light source. Thus, light curing is an essential procedure in improving bond strength when using dual-cured RMGICs in clinics.

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Two-body wear and fracture behaviour of an experimental paediatric composite crown in comparison to zirconia and stainless steel crowns dependent on the cementation mode

Cited by 17 publications

References 31 publications

In vitro evaluation of wear resistance, microhardness and superficial roughness of different fissure sealants after aging

In vitro evaluation of wear resistance, microhardness and superficial roughness of different fissure sealants after aging

The Wear Behavior of Glass-Ceramic CAD/CAM Blocks against Bovine Enamel

Effects of Curing Mode on the Bond Strength of Resin-Modified Glass Ionomer Cements

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