Development and characterisation of dental composites containing anisotropic fluorapatite bundles and rods

Altaie, Asmaa; Bubb, N. L.; Franklin, Paul; German, Matthew J.; Marie, Ali; Wood, David

doi:10.1016/j.dental.2020.05.003

Cited by 10 publications

(5 citation statements)

References 71 publications

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“…84 It is hoped ion-releasing fillers will act in a similar way, but depending on the filler composition, also stimulate the formation of either hydroxyapatite or fluorapatite, in the surrounding enamel and dentine. Of particular interest are fillers based on calcium phosphates, 85,86,87,88 calcium fluoride, 86 fluorapatite 89,90,91 and a variety of glasses based on SiO 2 -P 2 O 5 -CaO-Na 2 O (termed BioGlasses), 92 recently reviewed. 93 In vitro assessment of RBCs containing these fillers has revealed they can form apatite layers 94,95 when exposed to simulated body fluid (SBF).…”

Section: Functional Rbcsmentioning

confidence: 99%

Developments in resin-based composites

German

2022

Br Dent J

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With the phasing down of dental amalgam use in response to the Minamata Convention, it is likely that resin-based composite restoratives will be the dental material of choice for the direct restoration of compromised dentition in the UK, at least for the foreseeable future. The current materials have a finite lifespan, with failures predominately due to either secondary caries or fracture. Consequently, there is considerable in vitro research reported each year with the intention of producing improved materials. This review describes the recent research in materials designed to have low polymerisation shrinkage and increased mechanical properties. Also described is research into materials that are either antimicrobial or are designed to release ions into the surrounding oral environment, with the aim of stimulating remineralisation of the surrounding dental tissues. It is hoped that by describing this recent research, clinicians will be able to gain some understanding of the current research that will potentially lead to new products that they can use to improve patient treatment in the future.

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Section: Functional Rbcsmentioning

confidence: 99%

Developments in resin-based composites

German

2022

Br Dent J

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“…The incorporation of new materials in experimental resinmatrix composites has been studied to improve the physical and biological properties. Some inorganic fillers have been accessed, such as hydroxyapatite (Altaie et al, 2020;Chiari et al, 2015), alkaline glass (Habib et al, 2016;Ilie, 2018), and bioactive glasses (Par et al, 2017;Par et al, 2020).…”

Section: Conteúdo Inorgânico Das Resinas Compostasmentioning

confidence: 99%

“…A sílica é comumente usada na componente inorgânica uma vez que tem um índice de refração próximo da matriz resinosa, alta estabilidade química, e adequadas propriedades mecânicas (Wang et al, 2020;Yang et al, 2020). A incorporação de novos materiais em resinas compostas experimentais com o objetivo de melhorar as caraterísticas das resinas compostas tem também permitido a adição de hidroxiapatite (Altaie et al, 2020;Chiari et al, 2015), vidros alcalinos (Habib et al, 2016;Ilie, 2018) e vidros bioativos (Par et al, 2020;Par et al, 2017).…”

Section: Relationship Between Polymerization Inorganic Load and Organ...unclassified

Relationship between the inorganic content and the polymerization of the organic matrix of resin composites for dentistry: a narrative review

Fidalgo-Pereira¹,

Carpio²,

Carvalho³

et al. 2022

RevSALUS

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Introduction: In recent years, resin-matrix composite materials have revealed a fast technological improvement for dental applications. However, there are still some drawbacks related to the chemical composition, polymerization, and mechanical properties of resin-matrix composites with consequences in long-term clinical success. Objective: This study aimed to perform a narrative review regarding the effects of inorganic fillers on the organic matrix polymerization of resin-matrix composites. Materials and Methods: A search was performed in PubMed using relevant related key terms related to the chemical composition, properties and polymerization of resin matrix composites. Relevant studies published between 2001 and 2021 were selected. Results: The studies included in the present research provided relevant information on the chemical composition and properties of resin composites and polymerization factors, including the time, wavelength mode, and equipment. Studies have reported that silica and silicate nano-scale particles improve light transmission through resin-matrix composites and the degree of conversion of monomers in the organic matrix. Micrometric particles with a high refractive index can decrease the degree of conversion of monomers in the organic matrix. Conclusion: The polymerization of resin matrix composites is affected by light scattering due to the type of inorganic particles and the differences in refractive indexes of inorganic and organic contents.

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“…TEM image reveal that FA powders are composed of nano crystalline particles with the average particle size of less than 50 nm (Fig 8). The average diameter and length of FA crystals were found to be rod-like, and their lengths and width diameters were 49.34 and 10.92 nm respectively [33]. Hence the particles become highly crystallized.…”

Section: Morphology and Particle Size Distribution Of The Fa And Hamentioning

confidence: 95%

Green synthesis of Sodium alginate mediated Fluorapatite Nanoparticle via Sol-Gel method

Kia

Ahmad

Shameli

2021

JRNN

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Fluorapatite (FA) can be used as a bioactive substance in the body, especially the teeth implants. The FA nanoparticle was synthesized by adding the fluorine to the structure of HA using sol–gel method and the heat treatment of 700 °C. Being low costs, eco-friendly and safer features are obvious advantages of the green synthesis of FA nanoparticles by using bio stabilizer of sodium alginate. Calcium nitrate tetrahydrate, diammonium phosphate, ammonium fluoride were used as precursors of Ca, P and F respectively with the ratio of 1:67 Ca/P. The presence of crystal structure of HA and FA investigated by the results of XRD which confirmed the substitution of hydroxyl groups with the fluorine in the crystal structure of apatite. FTIR obtained that fluorine was substituted by hydroxyl groups in the structure of fluoridated hydroxyapatite by disappearing the hydroxyl groups at 3600 cm-1 in the FA. TGA investigated the thermal stability of the nanoparticles that showed the discrepancy of weight loss for HA and FA between 600?C to 800?C. By using TEM, average sizes of 35 and 49 nm were determined for HA and FA respectively. FESEM results confirmed the shapes and distribution of particles of HA and FA in that, round like for the former and rode like for the later. The overall performance of utilizing sodium alginate (SA) as a bio-stabilizer is to obtain better precipitate which leads to having better crystallinity and smaller particle size and thermal stability remarkably improved.

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Development and characterisation of dental composites containing anisotropic fluorapatite bundles and rods

Abstract: This is a repository copy of Development and characterisation of dental composites containing anisotropic fluorapatite bundles and rods.

Cited by 10 publications

References 71 publications

Developments in resin-based composites

Developments in resin-based composites

Relationship between the inorganic content and the polymerization of the organic matrix of resin composites for dentistry: a narrative review

Green synthesis of Sodium alginate mediated Fluorapatite Nanoparticle via Sol-Gel method

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