Effect of various polishing burs on surface roughness and bacterial adhesion in pediatric zirconia crowns

Go, Hanho; Park, Howon; Lee, Juhyun; Seo, Hyun‐Woo; Lee, Siyoung

doi:10.4012/dmj.2018-106

Cited by 22 publications

(17 citation statements)

References 19 publications

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“…Analysis of surface roughness and contact angle in terms of biofilm accumulation is also important since they affect microbial adhesion to induce biofilm formation [17][18][19]. In particular, increased surface roughness [20,21] and specific surface topography [22] were reported to be major contributing factors of microbial adhesion. Biofilm on dental restorations has been known to have harmful effects since it causes secondary caries and peri-implantitis [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Influence of Additive Firing on the Surface Characteristics, Streptococcus mutans Viability and Optical Properties of Zirconia

et al. 2021

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The purpose of this study was to observe whether the repetitive firing of dental zirconia caused changes in surface characteristics, S. mutans viability, and optical properties of zirconia. Dental zirconia blocks were sintered and randomly distributed into seven experimental groups: F0-F6. Except for F0, which only went through sintering, the additive firing was performed in order for F1-F6. Surface roughness, contact angle, S. mutans viability by fluorescence, and translucency parameter were measured. They were all highest after sintering (F0) and decreased after additive firings (F1–F6). The additive firing of zirconia after sintering decreased surface roughness, contact angle, S. mutans viability, and translucency. The number of firings after the first firing was not found to be critical in surface characteristics, S. mutans viability, and optical property. Changes in surface characteristics might have led to a decrease in S. mutans viability, while the change of translucency was not clinically significant. This implies that additive firing may prevent secondary caries under zirconia restorations, not compromising esthetic appearance.

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Section: Introductionmentioning

confidence: 99%

Influence of Additive Firing on the Surface Characteristics, Streptococcus mutans Viability and Optical Properties of Zirconia

et al. 2021

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“…Eventually, this constant change in pH can decrease the fracture strength of glass-ceramics [13,14] and increase surface roughness [15,16]. This roughening of the restoration can lead to plaque accumulation and increased wear of the opposing enamel [17,18]. Dental restorations should be able to withstand these fluctuations in pH.Chemical durability of dental materials has been extensively studied because of the importance of this property on the longevity of the restoration.…”

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confidence: 99%

Novel Coating to Minimize Corrosion of Glass-Ceramics for Dental Applications

et al. 2020

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The effect of a novel silicon carbide (SiC) coating on the chemical durability of a fluorapatite glass-ceramic veneer was investigated by examining weight loss and ion release levels. The hypothesis that this novel coating will exhibit significant corrosion resistance was tested. Inductively coupled plasma atomic emission spectrometer (ICP) was used for ion concentration determination and scanning electron microscopy (SEM) for surface morphology analyses. Samples were immersed in pH 10 and pH 2 buffer solutions to represent extreme conditions in the oral cavity. Analyses were done at 15 and 30 days. The SiC coated group demonstrated significant reduction in weight loss across all solutions and time points (p < 0.0001). Ion release analyses demonstrated either a marginally lower or a significantly lower release of ions for the SiC-coated disks. SEM analysis reveals planarization of surfaces by the SiC-coated group. The surfaces of coated samples were not as corroded as the non-coated samples, which is indicative of the protective nature of these coatings. In conclusion, SiC is a novel coating that holds promise for improving the performance of ceramic materials used for dental applications.Materials 2020, 13, 1215 2 of 11 substances pH 8-14 (e.g., spinach, soybeans, and antacids) [1]. Eventually, this constant change in pH can decrease the fracture strength of glass-ceramics [13,14] and increase surface roughness [15,16]. This roughening of the restoration can lead to plaque accumulation and increased wear of the opposing enamel [17,18]. Dental restorations should be able to withstand these fluctuations in pH.Chemical durability of dental materials has been extensively studied because of the importance of this property on the longevity of the restoration. Intrinsic or extrinsic modifications can be used to improve chemical durability. Several studies have demonstrated chemical stability for glass-ceramics can be enhanced by (1) different ratio of compositions; (2) addition of oxides, such as CaO, K 2 O, and Al 2 O 3 ; and (3) fluorine and calcium phosphates as part of intrinsic modifications [19-23]. Extrinsic modification can be achieved by producing additional layers on the surface to enhance chemical durability and other physical properties [24-26]. Esquivel-Upshaw et al. showed that glazed material has better chemical resistance than non-glazed material [1]. Topateş et al. discussed the effect of different glaze compositions on chemical durability [25]. Rau et al. reported that the chemical resistance and corrosion rate of magnesium alloy were improved with the application of a glass-ceramic coating [26].Chemical durability is also important because leached ions during corrosion may not be safe. The literature demonstrated the cytotoxicity of materials in ceramic [27][28][29][30]. Elshahawy et al. reported that Zn had the highest cytotoxicity (60% cell viability) to fibroblast cells among the ions released from gold alloys and ceramic crowns in patients' saliva, followed by Cu > Ag > Pd > Al > Au > Si. The cyt...

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“…The other studies used strains of Prevotella intermedia , 41 S . mutans , 8,11,21,22,29,30,34,36–38,42,43 Streptococcus sanguinis , 8,22,30,31,34,44 Streptococcus gordonii , 31,34 Streptococcus oralis , 22,31,34,45 Streptococcus sobrinus 22,33 Streptococcus mitis , 32,45 Lactobacillus rhamnosus , 11 and Candida albicans 8,11,30 …”

Section: Resultsmentioning

confidence: 99%

Effect of surface properties of ceramic materials on bacterial adhesion: A systematic review

Kreve

Reis²

2021

J Esthet Restor Dent

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Purpose The objective of this systematic review was to describe studies that report on whether surface characteristics such as electrostatic charge, surface free energy, and surface topography promote influence on bacterial adhesion on ceramic surfaces. Material and Method Searches in the SCOPUS, PubMed/Medline, Web of Science, EMBASE, and Google Scholar databases were performed between December 2020 and January 2021 and updated in March 2021. In addition, a manual search of reference lists from relevant retrieved articles was performed. The criteria included: studies that evaluated ceramic surfaces, which described factors such as surface free energy, electrostatic charges, roughness, zeta potential, and their relationship with bacteria. Results Database search resulted in 348 papers. Of the 24 studies selected for full reading, 17 articles remained in this systematic review. Another five studies were found in references of articles included, totaling 22 studies. These had a high heterogeneity making it difficult to perform statistical analysis, so a descriptive analysis was performed. Conclusions For dental ceramics, not enough results were found to demonstrate the influence of the electrostatic condition, and its relationship with bacterial adhesion. However, studies of this review show that there is a correlation between bacterial adhesion, surface free energy, and topography. Clinical Significance The knowledge of ceramics with repulsive physical–chemical interactions would allow an environment suggestive of non‐adhesion of pathogenic biofilm.

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Effect of various polishing burs on surface roughness and bacterial adhesion in pediatric zirconia crowns

Cited by 22 publications

References 19 publications

Influence of Additive Firing on the Surface Characteristics, Streptococcus mutans Viability and Optical Properties of Zirconia

Influence of Additive Firing on the Surface Characteristics, Streptococcus mutans Viability and Optical Properties of Zirconia

Novel Coating to Minimize Corrosion of Glass-Ceramics for Dental Applications

Effect of surface properties of ceramic materials on bacterial adhesion: A systematic review

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