Evaluation of the effect of different polishing systems on the surface roughness of dental ceramics

Incesu, Esra; Yanıkoğlu, Nuran

doi:10.1016/j.prosdent.2019.07.003

Cited by 31 publications

(33 citation statements)

References 42 publications

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“…Surface roughness was measured using a 3D non-contact optical profilometer interference microscope, which has been shown to be preferable and more reliable in quantitative surface topographic analysis. It is also connected to a camera that captures a 3D surface texture image of the whole sample, resulting in a precise qualitative representation of the samples [30,31] .…”

Section: Discussionmentioning

confidence: 99%

Evaluation of colour stability and surface roughness of three CAD/CAM materials (IPS e.max, Vita Enamic, and PEEK) after immersion in two beverage solutions: An in vitro study

Alsilani¹,

Sherif²,

Elkhodary³

2022

Int. J. Appl. Dent. Sci.

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To evaluate the colour stability and surface roughness of 3 different CAD/CAM materials (IPS e.max, Vita Enamic, and PEEK) after immersion in two beverage solutions (Coffee, Coca-Cola). Methodology: Samples from a lithium disilicate glass-ceramic (IPS e.max CAD), a hybrid ceramic (Vita Enamic), and PEEK (BioHPP) were evaluated for colour change and surface roughness under immersion in two beverage solutions (Coffee, Coca-Cola). A total of 30 samples were prepared n=10 each. Spectrophotometer analysis was used to measure colour parameters (a*, b*, c*) before and after the immersion cycles and the average colour difference (Delta E*) was calculated after immersion in different beverages. Surface roughness was measured with a non-contact profilometer. Statistical analysis was performed using the Kruskal Wallis test with the Mann Whitney test as posthoc. The significance level was set at P ≤ 0.05. Results: There was a significant colour change between the materials. Vita Enamic and PEEK samples showed the highest colour change value with coffee immersion (ΔE) (7.96± 3.86), (6.07± 3.12) respectively. While IPS e.max. CAD revealed the lowest colour change value (2.62 ±1.54) following coffee immersion with a statistically significant difference in between (P< 0.011). After immersion in different media, there was a significant difference in surface roughness between the materials (p< 0.05). Conclusion: Vita Enamic and PEEK showed colour change beyond the clinically acceptable level, while IPS e.max CAD was the most stable material in colour and surface roughness.

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Section: Discussionmentioning

confidence: 99%

Evaluation of colour stability and surface roughness of three CAD/CAM materials (IPS e.max, Vita Enamic, and PEEK) after immersion in two beverage solutions: An in vitro study

Alsilani¹,

Sherif²,

Elkhodary³

2022

Int. J. Appl. Dent. Sci.

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“…Studies found that glazed groups and some polished groups exhibited similar surface roughness. Therefore, the polishing system did not have the same effect on all the ceramic systems [49][50][51]. It was noted the importance of considering the material structure when selecting a polishing method and that leucite content influences polish ability [52,53].…”

Section: Discussionmentioning

confidence: 99%

Surface Characterization and Optical Properties of Reinforced Dental Glass-Ceramics Related to Artificial Aging

et al. 2020

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The development of various dental glass-ceramic materials and the evolution of novel processing technologies lead to an essential change in the clinical and technical workflow. The long-term success of a dental restoration treatment is defined by its durability, which is directly influenced by the oral environment. This study’s purpose was to evaluate the artificial aging behavior of nanostructured, respective microstructured ceramics related to surface topography, roughness, and optical properties. Six monolithic restoration materials were selected: milled lithium disilicate glass-ceramic (LDS-M) MT (medium translucency), hot-pressed lithium disilicate glass-ceramic (LDS-P) MT and HT (high translucency), milled zirconia-reinforced lithium silicate ceramic (ZLS-M) MT and hot-pressed zirconia-reinforced lithium silicate ceramic (ZLS-P) MT and HT, resulting n = 96 surfaces. All the samples were artificially aged by thermal cycling, and all investigations were made before and after thermal cycling. In terms of optical properties, differences recorded between ZLS and LDS ceramics are not significant. Thermal cycling increases the translucency of ZLS and LDS glass-ceramic materials significantly, with the most harmful effect on the pressed and polished samples. Micro- and nano roughness are significantly influenced by in vitro aging and a negative correlation was recorded. Glazed samples are characterized by significant rougher surfaces for all types of materials. On nanolevel, ZLS materials are significantly smoothed by thermal cycling.

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“…An increase in surface roughness above R a = 0.2 μm can substantially increase plaque accumulation with increase caries and periodontal inflammation 10 . Generally, it has been shown that hand polishing creates a smoother surface compared to oven glazing and is a better approach than reglazing a glazed surface requiring adjustment 16‐20 . One recent study concluded that surfaces of manually polished CAD/CAM ceramics are smoother compared to glazed feldspathic ceramics 21 .…”

Section: Introductionmentioning

confidence: 99%

Surface Evaluation of Resilient CAD/CAM ceramics after Contouring and Polishing

Siddanna

Valcanaia

Fierro

et al. 2021

J Esthet Restor Dent

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Objective This in‐vitro study measured the differences in surface roughness for computer assisted design/computer assisted manufacturing (CAD/CAM) resilient ceramic and CAD/CAM composite materials. Materials and Methods The materials included Lava Ultimate (3 M), Cerasmart (GC America), Vita Enamic (Vita Zahnfabrik), and Brilliant Crios (Coltene). One calibrated operator polished each material with three polishing sytems: spiral polishers (Diacomp FeatherLite/Brasseler), rubbercup polishers (Enhance/DentsplyCaulk), and brush‐paste (Diashine/VH Technologies). Surface roughness was assessed using a confocal laser microscope (Lext OLS4000/Olympus). Results A two‐way ANOVA revealed statistically significant differences in mean surface roughness values (Sa) among materials and polishers. Tukey multiple comparisons showed that mean Sa values for Lava Ultimate, Enamic, Cerasmart and Brilliant Crios polished with brush‐paste as well as Lava Ultimate and Cerasmart values polished with spiral polishers were not significantly different from each other. Conclusions The finished surfaces were significantly smoother than milled surfaces for all materials. The brush‐paste polishing technique created the lowest surface roughness values for all CAD/CAM materials and values were comparable to what was achieved by spiral polishers for Lava Ultimate and Cerasmart. Rubber polishers did not provide a clinically smooth surface for CAD/CAM resilient ceramic/composite materials. Clinical significance The results of the study indicate that polishing creates smooth surfaces for CAD/CAM resilient ceramic and CAD/CAM composite restorations.

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Evaluation of the effect of different polishing systems on the surface roughness of dental ceramics

Cited by 31 publications

References 42 publications

Evaluation of colour stability and surface roughness of three CAD/CAM materials (IPS e.max, Vita Enamic, and PEEK) after immersion in two beverage solutions: An in vitro study

Evaluation of colour stability and surface roughness of three CAD/CAM materials (IPS e.max, Vita Enamic, and PEEK) after immersion in two beverage solutions: An in vitro study

Surface Characterization and Optical Properties of Reinforced Dental Glass-Ceramics Related to Artificial Aging

Surface Evaluation of Resilient CAD/CAM ceramics after Contouring and Polishing

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