Comparative study on the impact-sliding wear behaviour of CAD/CAM resin-ceramic materials and tooth enamel

Jin, Chunxiao; Deng, Jiuhong; Pan, Peiyue; Xiong, Yuhuan; Zhu, Liqing; Gao, Shanshan

doi:10.1016/j.dental.2022.11.010

Cited by 9 publications

(1 citation statement)

References 54 publications

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“…The range of wear amounts of the materials used in this study were considered between 0.20 (Q1:0.14; Q3:0.27 μm) and 0.75 (Q1:0.70; Q3:0.82) (Table 3). Vita Enamic was reported to have a higher level of microhardness and elastic modulus than the resin-based materials and also presented the closest surface hardness values to dental enamel tissue, previously 25,26) . Supporting these findings, according to our results, Vita Enamic and Lava Ultimate materials presented similar microhardness values to the dental enamel.…”

Section: Assessment Of the Wearmentioning

confidence: 99%

<i>In-vitro</i> evaluation of wear characteristics, microhardness and color stability of dental restorative CAD/CAM materials

BAYRAKTAR,

TÜRKMEN,

ATALI

et al. 2024

Dent. Mater. J.

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The aim of this study was to demonstrate the vertical and volumetric wear characteristics of CAD/CAM materials. The microhardness and color stability were evaluated. A polymer infiltrated ceramic network CAD/CAM block, resin nanoceramic CAD/CAM blocks, a resin composite, and enamel tissue were investigated. Samples were loaded in a chewing simulator. Other samples were aged and immersed in coffee. Color change was evaluated using the digital image analysis and a spectrophotometer. The data were analyzed using Kolmogorov-Smirnov, Kruskal Wallis, Mann Whitney U, Friedman, Spearman's rho tests (p<0.05). The lowest level of wear was obtained in enamel tissue group 0.20 (Q1:0.14; Q3:0.27μm). Resin composite group 2.48 (Q1:2.12; Q3:2.92) showed lower level of discoloration. No agreement was obtained between the digital image analysis and spectrophotometer data (Spearman's rho −0.314, p=0.014). Similar wear rate to the natural enamel tissue was obtained for Vita Enamic. Digital image analysis was considered a promising technique for monitoring the color change.

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Section: Assessment Of the Wearmentioning

confidence: 99%

<i>In-vitro</i> evaluation of wear characteristics, microhardness and color stability of dental restorative CAD/CAM materials

BAYRAKTAR,

TÜRKMEN,

ATALI

et al. 2024

Dent. Mater. J.

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Wear behavior at margins of direct composite with CAD/CAM composite and enamel

et al. 2023

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Objectives The aim was to investigate the two-body wear at the marginal area between direct filling composites and substrate of CAD/CAM composites or enamel. Materials and methods Flat specimens were prepared from CAD/CAM composites (CERASMART 270 and SFRC CAD) and bovine enamel. A box-shaped cavity cut into CAD/CAM composites and enamel surfaces was made. The prepared cavity in CAD/CAM composites was treated with a primer, while in enamel, the cavity was treated with an adhesive. Three conventional composites (Universal Injectable, G-aenial A’Chord, and Filtek Bulk Fill) and one short fiber composite (everX Flow) were placed and cured in the prepared cavities. A two-body wear test was conducted with 15,000 chewing cycles using a dual-axis chewing simulator. The specimens (n = 5/per group) were positioned to produce wear (load = 20 N) across the marginal area between filling composites and substrates. The wear depth was analyzed using a 3D optical profilometer. SEM was used to evaluate the wear behavior and margins between the filling and substrate materials. Results All composites used displayed different wear behavior (20–39 µm) (p < 0.05). The highest wear values were recorded for A’Chord and Filtek, while the lowest values were for Injectable and CERASMART 270. The data analysis showed that the wear behavior of substrate materials depends on the filling materials used at margins (p < 0.05). The marginal breakdown was seen only between bovine enamel and filling composites. Conclusions The use of the two-body wear simulation method revealed important information about the behavior of the filling composites at the marginal area with CAD/CAM composites or bovine enamel substrates. Clinical relevance The marginal breakdown related to the material combination at the bonding region.

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Fracture characteristics and translucency of multilayer monolithic zirconia crowns of various thicknesses

Kang,

Hsu,

Chen

et al. 2024

Journal of Dentistry

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Comparative study on the impact-sliding wear behaviour of CAD/CAM resin-ceramic materials and tooth enamel

Cited by 9 publications

References 54 publications

<i>In-vitro</i> evaluation of wear characteristics, microhardness and color stability of dental restorative CAD/CAM materials

<i>In-vitro</i> evaluation of wear characteristics, microhardness and color stability of dental restorative CAD/CAM materials

Wear behavior at margins of direct composite with CAD/CAM composite and enamel

Fracture characteristics and translucency of multilayer monolithic zirconia crowns of various thicknesses

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