Influence of niobium pentoxide addition on the properties of glass ionomer cements

García, Isadora Martini; Leitune, Vicente Castelo Branco; Balbinot, Gabriela de Souza; Samuel, Susana Maria Werner; Collares, Fabrício Mezzomo

doi:10.1080/23337931.2016.1239182

Cited by 26 publications

(14 citation statements)

References 39 publications

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“…The authors concluded that these results are positive and further investigations are required to analyze the biomimetic remineralization potential of this material. 47…”

Section: Glass Ionomer Cement Powder Modifications and Filler Incorpomentioning

confidence: 99%

Modifications of Glass Ionomer Cement Powder by Addition of Recently Fabricated Nano-Fillers and Their Effect on the Properties: A Review

et al. 2019

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The aim of this article is to provide a brief insight regarding the recent studies and their recommendations related to the modifications to glass ionomer cement (GIC) powder in order to improve their properties. An electronic search of publications was made from the year 2000 to 2018. The databases included in the current study were EBSCOhost, PubMed, and ScienceDirect. The inclusion criteria for the current study include publication with abstract or full-text articles, original research, reviews or systematic reviews, in vitro, and in vivo studies that were written in English language. Among these only articles published in peer-reviewed journals were included. Articles published in other languages, with no available abstract and related to other nondentistry fields, were excluded. A detailed review of the recent materials used as a filler phase in GIC powder has revealed that not all modifications produce beneficial results. Recent work has demonstrated that modification of GIC powder with nano-particles has many beneficial effects on the properties of the material. This is due to the increase in surface area and surface energy, along with better particle distribution of the nano-particle. Therefore, more focus should be given on nano-particle having greater chemical affinity for GIC matrix as well as the tooth structure that will enhance the physicochemical properties of GIC.

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“…The authors concluded that these results are positive and further investigations are required to analyze the biomimetic remineralization potential of this material. 47…”

Section: Glass Ionomer Cement Powder Modifications and Filler Incorpomentioning

confidence: 99%

Modifications of Glass Ionomer Cement Powder by Addition of Recently Fabricated Nano-Fillers and Their Effect on the Properties: A Review

et al. 2019

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“…Incorporation of niobium pentaoxide to luting GICs was reported to decrease their compressive strength significantly [ 15 ]. However, in recent years, it has been demonstrated that 5% niobium pentoxide can be added to improve the radiopacity of GIC without affecting its strength [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Effect on Physical and Mechanical Properties of Conventional Glass Ionomer Luting Cements by Incorporation of All-Ceramic Additives: An In Vitro Study

Saran

Upadhya

Ginjupalli

et al. 2020

International Journal of Dentistry

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Introduction. Glass ionomer cements (GICs) are commonly used for cementation of indirect restorations. However, one of their main drawbacks is their inferior mechanical properties. Aim. Compositional modification of conventional glass ionomer luting cements by incorporating two types of all-ceramic powders in varying concentrations and evaluation of their film thickness, setting time, and strength. Material & Methods. Experimental GICs were prepared by adding different concentrations of two all-ceramic powders (5%, 10, and 15% by weight) to the powder of the glass ionomer luting cements, and their setting time, film thickness, and compressive strength were determined. The Differential Scanning Calorimetry analysis was done to evaluate the kinetics of the setting reaction of the samples. The average particle size of the all-ceramic and glass ionomer powders was determined with the help of a particle size analyzer. Results. A significant increase in strength was observed in experimental GICs containing 10% all-ceramic powders. The experimental GICs with 5% all-ceramic powders showed no improvement in strength, whereas those containing 15% all-ceramic powders exhibited a marked decrease in strength. Setting time of all experimental GICs progressively increased with increasing concentration of all-ceramic powders. Film thickness of all experimental GICs was much higher than the recommended value for clinical application. Conclusion. 10% concentration of the two all-ceramic powders can be regarded as the optimal concentration for enhancing the glass ionomer luting cements’ strength. There was a significant increase in the setting time at this concentration, but it was within the limit specified by ISO 9917–1:2007 specifications for powder/liquid acid-base dental cements. Reducing the particle size of the all-ceramic powders may help in decreasing the film thickness, which is an essential parameter for the clinical performance of any luting cement.

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“…This is an important observation, as the collagen membrane in the procedures was left exposed after the ap repositioning. The exposure of membrane after guided bone regeneration membranes is known to increase the prevalence of postoperative bacterial infection in surgical sites [38]. Furthermore, the cyanoacrylate-based adhesive (Periacryl® 90 HV) exhibited a hemostatic effect on the wound after 12 days, when the sockets already had brin formation, indicating a beginning of wound healing [39].…”

Section: Discussionmentioning

confidence: 99%

Cyanoacrylate Tissue Adhesive as a Membrane in Socket Preservation: In Vitro Cytotoxicity and Clinical Evaluation

Azpur

ortiz

Valdivia

et al. 2020

Preprint

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Background: Cyanoacrylate-based adhesives provide immediate hemostasis when applied; this is attributed to their ability to form a mechanical barrier in the surgical site, favoring the coagulation process and allowing control of bleeding. The purpose of the present study was to demonstrate the in vitro effect of cyanoacrylate-based tissue adhesive and the clinical evaluation of wound healing of freshly extracted sockets with adhesives applied on an exposed collagen membrane, for preservation of the alveolar ridge. Methods: Cytotoxicity was evaluated with sulphoradamine B assay with primary fibroblasts from gingival tissue. The in vivo analysis was carried out in 10 patients needing extraction of single-rooted teeth, who met the inclusion and exclusion criteria and signed the term of free and informed consent. Alveolar preservation was carried out with a mineralized cortical allograft bone substitute and a resorbable collagen membrane that was intentionally left exposed. On the exposed membrane, the Periacryl® 90 HV was applied as a barrier. The biocompatibility of the adhesive was assessed by the Early-Wound Healing Index (EHI) and Early Wound Healing Score (EHS), of perialveolar tissues at time intervals of 12, 30- and 60-days post-surgery. Results: Reduced cell viability was observed for Periacryl® 90 HV when compared with cells without adhesive treatments. No postoperative complications were observed after the application of Periacryl® 90 HV on perialveolar tissues. Conclusion: The use of the Periacryl® 90 HV cyanoacrylate-based tissue adhesive resulted in reduced fibroblast viability in vitro, and adequate results of wound closure in the clinical evaluation of EHI and EHS scores.

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Influence of niobium pentoxide addition on the properties of glass ionomer cements

Cited by 26 publications

References 39 publications

Modifications of Glass Ionomer Cement Powder by Addition of Recently Fabricated Nano-Fillers and Their Effect on the Properties: A Review

Modifications of Glass Ionomer Cement Powder by Addition of Recently Fabricated Nano-Fillers and Their Effect on the Properties: A Review

Effect on Physical and Mechanical Properties of Conventional Glass Ionomer Luting Cements by Incorporation of All-Ceramic Additives: An In Vitro Study

Cyanoacrylate Tissue Adhesive as a Membrane in Socket Preservation: In Vitro Cytotoxicity and Clinical Evaluation

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