Effect of airborne-particle abrasion of presintered zirconia on surface roughness and bacterial adhesion

Zhang, Ming; Zhang, Zutai; Ding, Ning; Zheng, Dongxiang

doi:10.1016/j.prosdent.2014.12.012

Cited by 14 publications

(5 citation statements)

References 18 publications

(21 reference statements)

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“…Surface treatment procedures are generally applied after sintering process of zirconia which may promote phase transformation and microcracks leading a decrease in reliability of material . Treating the zirconia surface before sintering process has been reported to provide rougher surfaces and higher bond strength values when compared to postsintering application . Since the studies that evaluated the mechanical and optical properties of zirconia subjected to surface treatment before sintering is very limited, current study was conducted.…”

Section: Discussionmentioning

confidence: 99%

“…As poor bonding can lead to both biological and mechanical complications, the establishment of a durable bond between ceramic and luting cement by the genesis of chemical bonds and mechanical interlocking has been considered as a pivotal factor for the long‐term viability of a restoration . Different micromechanical (mechanical, chemical, and laser treatments) and chemical bonding techniques (silicon coatings, use of coupling agents) have been developed as attempts to achieve superior bond quality between zirconia and luting cement . Among these techniques, the drive to use micromechanical‐based protocols such as air‐borne particle abrasion (APA), diamond grinding (G), multiphase glass ceramic coating, low fusing porcelain coating, selective infiltration etching, application of zirconia particle suspension, gas plasma treatment, application of phosphate monomers with fusing glass beads, argon‐ion bombardment, acid‐etching with highly corrosive acid combinations, and laser irradiation (LI) has increased in intensity.…”

Section: Introductionmentioning

confidence: 99%

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Does the application of surface treatments in different sintering stages affect flexural strength and optical properties of zirconia?

Kurtulmuş-Yılmaz¹,

Önöral²,

Aktore³

et al. 2019

J Esthet Restor Dent

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Objective: To investigate the influence of surface treatments conducted in presintering and postsintering stages on flexural strength and optical properties of zirconia.Materials and methods: Specimens were milled from partially sintered zirconia blocks in different geometries and divided into three main groups as presintered, postsintered, and control groups. Test groups were further divided into three subgroups (n = 10) according to the surface treatments conducted (grinding, Er,Cr:YSGG laser irradiation, air-borne particle abrasion [APA]). Four-point flexural strength (σ) test and Weibull analysis were conducted. Color differences (ΔE 00 ) and translucency parameter (TP ab ) were calculated with a spectrophotometer. Surfaces of specimens were scrutinized under FESEM. Data were statistically analyzed.Results: Postsintered groups exhibited higher σ values (P < .05). Within all groups, highest and lowest σ values were detected at postsintered and presintered APA groups, respectively (P < .05). All ΔE 00 values were above the perceptibility threshold (ΔE 00 > 0.8). Higher TP ab values were obtained and deeper scratches were observed in presintered groups.Conclusions: Surface treatments performed at postsintering stage had a favorable effect on the flexural strength of all specimens. Surface treatments performed before sintering increased translucency and caused higher ΔE 00 values.Clinical significance: Surface treatments performed at different sintering stages can alter mechanical and optical properties of zirconia.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Does the application of surface treatments in different sintering stages affect flexural strength and optical properties of zirconia?

Kurtulmuş-Yılmaz¹,

Önöral²,

Aktore³

et al. 2019

J Esthet Restor Dent

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“…Since cells of mesenchymal origin, including fibroblasts, are rugophilic, it is valid to think that the surface of the loaded cements, being more irregular than the Control ABC, is more encouraging for the cells. Several pieces of research had demonstrated that a higher roughness of the surface of the biomaterials favors the adhesion and proliferation of the cells [61][62][63][64][65]. The presence of cells and deposits of extracellular matrix on the cements confirmed their biocompatibility because according to Richards [61], the adhesion of cells to surfaces is one of the vital aspects in biocompatibility.…”

Section: Subdermal Implantationmentioning

confidence: 97%

Osseointegration of Antimicrobial Acrylic Bone Cements Modified with Graphene Oxide and Chitosan

et al. 2020

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Acrylic bone cement (ABC) is one of the most used materials in orthopedic surgery, mainly for the fixation of orthopedic implants to the bone. However, ABCs usually present lack of biological activity and osseointegration capacity that leads to loosening of the prosthesis. This work reports the effect of introducing graphene oxide (GO) and chitosan (CS), separately or together, in the ABC formulation on setting performance, mechanical behavior, and biological properties. Introduction of both CS and GO to the ABC decreased the maximum temperature by 21% and increased the antibacterial activity against Escherichia coli by 87%, while introduction of only CS decreased bending strength by 32%. The results of cell viability and cell adhesion tests showed in vitro biocompatibility. The in vivo response was investigated using both subdermal and bone parietal implantations in Wistar rats. Modified ABCs showed absence of immune response, as confirmed by a normal inflammatory response in Wistar rat subdermal implantation. The results of the parietal bone implantation showed that the addition of CS and GO together allowed a near total healing bone–cement interface, as observed in the micrographic analysis. The overall results support the great potential of the modified ABCs for application in orthopedic surgery mainly in those cases where osseointegration is required.

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“…findings. Airborne-particle abrasion before sintering is a useful method of increasing the surface roughness of zirconia [30].…”

Section: Pre-sintering and Post Sintering Surface Treatmentsmentioning

confidence: 99%

Dealing with the Internal and External Surfaces of Zirconia Restorations; between Past and Present Trends. A Review of Literature

El-Ashkar¹,

Nabil²

2022

Act Scie Dental

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Objectives:The optimum zirconia bonding protocol have been always a mystery to be solved throughout the past years. The purpose of this review is to go through the innumerable surface treatment methods and protocols concerned with the both internal and external zirconia surface treatment.Study selection, Data and Sources: An electronic Pubmed, Medline and Google scholar search was done to attain In-vitro studies on zirconia surface treatments published in english, with time frame between 2013 and 2020.Results: Hundred thirty-two in vitro studies and systematic reviews were surveyed in this appraisal. Numerous techniques were used for zirconia surface modifications, these methodologies were categorized and grouped in this review according to the surface modified. Laboratory test studies discuss internal surface treatments including micro-mechanical bonding, chemical bonding and external surface treatment including different core surface treatment, glazing and polishing. Conclusions:With respect to the heterogeneity of the included studies; the internal surface treatment, most of the included studies verified the air particle abrasion as the generally approved micro-mechanical topographic modification protocol. Other internal surface treatment protocols as chemical etching showed promising results in laboratory studies with inadequacy of clinical application.The external surface studies verified different methods over others. However, self-glazed zirconia studies are scarce.

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Effect of airborne-particle abrasion of presintered zirconia on surface roughness and bacterial adhesion

Cited by 14 publications

References 18 publications

Does the application of surface treatments in different sintering stages affect flexural strength and optical properties of zirconia?

Does the application of surface treatments in different sintering stages affect flexural strength and optical properties of zirconia?

Osseointegration of Antimicrobial Acrylic Bone Cements Modified with Graphene Oxide and Chitosan

Dealing with the Internal and External Surfaces of Zirconia Restorations; between Past and Present Trends. A Review of Literature

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