Mechanical properties of contemporary resin composites determined by nanoindentation

Alrobeigy, Nabawy

doi:10.4103/tdj.tdj_11_17

Cited by 11 publications

(11 citation statements)

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“…46 Mevcut literatürde, akıcı kompozit rezinlerin, düşük miktarda doldurucu içermesi sonucu geleneksel kompozit rezinlere göre daha düşük mekanik özelliklerinin olduğu bildirilmiştir. 47,48 Bayne ve ark. doldurucu yüzdesinin, aşınmayı, basınç dayanımını, basma direncini iki eksenli eğilme dayanımını 8 akıcı ve 2 hibrit kompozit rezin kullanarak değerlendirmiştir.…”

Section: Akici Kompozi̇t Rezi̇nleri̇n öZelli̇kleri̇ 1 Akıcı Kompozit Rezinlerin Fiziksel-mekanik öZellikleriunclassified

“…Ayrıca yaşlandırma işleminde yetersiz polimerize edilmiş olan rezinde su moleküllerinin reaksiyona girmemiş monomerlerle bağlanabileceği ve sertlikte bir azalmaya neden olabileceği sonucuna da varılmıştır. 48 Bonilla ve ark. 9 akıcı kompozit rezinde oluşturulan çatlak oluşumuna karşı direncini, kırılma dayanımı ölçülerek karşılaştırmış ve test edilen 9 kompozit rezinin 7'si arasında anlamlı bir fark bulunmamıştır.…”

Section: Akici Kompozi̇t Rezi̇nleri̇n öZelli̇kleri̇ 1 Akıcı Kompozit Rezinlerin Fiziksel-mekanik öZellikleriunclassified

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Akıcı Kompozitler: Bir Literatür Derlemesi

Fidan

DERELİ

2021

Selcuk Dental Journal

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Flowable Composite Resins: A Literature ReviewRecently, flowable composite resins have become increasingly popular in dental practice. The viscosity, biocompatibility, consistency and ease of manipulation of flowable composite resins make it attractive for use in the clinic and broaden their application areas. The properties of flowable composite resins are being investigated in in vitro and clinical studies. Although there is a lot of information about traditional composite resins when the literature is investigated, there is less information about flowable composite resins. In this review, it is aimed to give information about the clinical application and general properties of flowable composite resins.

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Section: Akici Kompozi̇t Rezi̇nleri̇n öZelli̇kleri̇ 1 Akıcı Kompozit Rezinlerin Fiziksel-mekanik öZellikleriunclassified

Akıcı Kompozitler: Bir Literatür Derlemesi

Fidan

DERELİ

2021

Selcuk Dental Journal

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“…is may be due to the fact that all materials have same filler concentration, and literature postulates that hardness depends on the quantity of filler [9,10,14,25]. However, other studies postulate that the hardness and other tribological properties are determined not only by the quantity of filler but also by the type and quantity of silanizing agent, as well as the method of surface modification of the filler [17,48].…”

Section: Production Of Nanoclustersmentioning

confidence: 99%

“…Wear resistance is an important property in the performance of dental composites because lack of wear resistance will produce an excessive reduction in structure, resulting in the loss of posterior tooth support, vertical dimension of occlusion, masticatory efficiency and esthetics, as well as alterations in the functional path of masticatory movement, fatigue of masticatory muscles, and faulty tooth relationship [4]. Wear (resistance) performance of dental resin composites is affected by roughness and hardness, while roughness also influences aesthetic appearance, discoloration, plaque accumulation, the appearance of secondary caries, gum inflammation, and wear of opposing and adjacent teeth [5][6][7][8], and hardness, defined as how resistant the material is to penetration, can be used to predict wear resistance and the tendency of the material to erode the opposing tooth or material [7,9,10].…”

Section: Introductionmentioning

confidence: 99%

Effects of Silica Nanoparticles and Silica-Zirconia Nanoclusters on Tribological Properties of Dental Resin Composites

Rodríguez

Casanova

2018

Journal of Nanotechnology

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Roughness and hardness are among the most important variables in the wear (resistance) performance of dental resin composites. In this study, silica nanoparticles and nanoclusters of silica and silica-zirconia nanoparticles were evaluated for use as reinforcement agents in dental resin composites. Nanoclusters with spherical morphology were obtained from aqueous dispersions of nanoparticles by spray drying. Roughness was measured through atomic force microscopy (AFM) while nanohardness was evaluated by nanoindentation. The roughness values obtained with silica nanoparticles were lower (22.6 ± 6.6 nm) than those obtained with silica and silica-zirconia nanoclusters (138.1 ± 36.6 nm, 116.2 ± 32.2 nm, resp.), while the hardness values of all composites were similar (nanoparticles = 0.24 ± 0.01 GPa, silica nanoclusters = 0.25 ± 0.04 GPa, and silica-zirconia nanoclusters = 0.22 ± 0.02 GPa). Based on this study, it can be established that particle size is a determining factor in the roughness of the final material, while the key variable for nanohardness was the concentration of the reinforcement materials.

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“…Composite materials are generally used as toothcolored materials in dentistry because of their good aesthetic properties, advanced mechanical properties, biocompatibility, and adhesion to the tooth structure (1). The content of composite materials is generally classified according to the filler shape and size, the resin matrix, and the area of use (2).…”

Section: Introductionmentioning

confidence: 99%

Investigation of the effect of different application techniques on microhardness in bulk-fill composite resins

Fidan

Gönder

2021

Int Dent Res

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Aim: The aim of this study was to investigate the effect of different application techniques on microhardness in one universal resin material and three different bulk-fill composite resin materials. Materials and Methods: In this study, one universal composite resin (Universal Restorative 200 [U], 3M-ESPE, USA) and three different bulk-fill composite resins (Filtek-One Bulk-Fill Restorative [F]; 3M-ESPE, USA: Tetric Evo-Ceram Bulk-Fill [E]; and Ivoclar-Vivadent, Liechtenstein; Tetric N-Ceram Bulk-Fill [N], Ivoclar-Vivadent, Liechtenstein) materials were used. A total of 60 disk-shaped samples, including 20 samples from each bulk-fill composite resin group, were prepared. The polymerization of the bulk-fill composite resins in one group was completed using a 2 mm (40 sec) + 2 mm (40 sec) incremental technique, and in the other group, it was completed using a 4 mm bulk technique (40 sec). The U composite resin (control group) polymerization was completed using a 2 mm + 2 mm (40 sec) incremental technique (n = 10). The Vickers microhardness (VHN) values of the samples were calculated. The data were analyzed with Kruskal–Wallis and Mann–Whitney U tests (p < 0.05). Results: Higher VHN values were found in the U composite resin compared to those in the bulk-fill composite resins (p < 0.05). In the bulk technique, a lower VHN value was observed in the N bulk-fill composite resin than in the control group (p < 0.05), while there was no difference between the N and E composite resin groups (p > 0.05). A lower N bulk-fill composite resin was observed in the groups in which the incremental technique was applied than in the control group (p < 0.05). When the techniques applied to the bulk-fill composite resins were evaluated within themselves, higher VHN values were observed in the E composite resin in the group in which the incremental technique was applied but not in the group in which the bulk was applied. Conclusion: It was observed that the content differences of composite resins were effective at different VHN values. The U composite resin (control) group showed higher VHN values than all the bulk-fill composite groups. How to cite this article: Fidan M, Gönder HY. Investigation of the effect of different application techniques on microhardness in bulk-fill composite resins. Int Dent Res 2021;11(Suppl.1):32-7. https://doi.org/10.5577/intdentres.2021.vol11.suppl1.6 Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

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Mechanical properties of contemporary resin composites determined by nanoindentation

Cited by 11 publications

References 0 publications

Akıcı Kompozitler: Bir Literatür Derlemesi

Akıcı Kompozitler: Bir Literatür Derlemesi

Effects of Silica Nanoparticles and Silica-Zirconia Nanoclusters on Tribological Properties of Dental Resin Composites

Investigation of the effect of different application techniques on microhardness in bulk-fill composite resins

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