Reinforcement of flowable dental composites with titanium dioxide nanotubes

Dafar, Manal O.; Grol, Matthew W.; Canham, Peter B.; Dixon, S. Jeffrey; Rizkalla, Amin S.

doi:10.1016/j.dental.2016.03.022

Cited by 50 publications

(48 citation statements)

References 110 publications

(152 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This could explain the better mechanical properties for Filtek Supreme XT (A3) than Accolade SRO (A2); ELS (extra low shrinkage; A3 op); StarFlow (A2); and Wave (A3). An increased hybrid inorganic filler load improved the stress transfer at the interface of the particles in the FRCs [29,30]. In this study, Filtek Supreme XT (A3) showed very good mechanical properties, which could be explained by the use of hybrid inorganic fillers.…”

Section: Discussionmentioning

confidence: 61%

Influence of Filler Loading on the Mechanical Properties of Flowable Resin Composites

et al. 2020

View full text Add to dashboard Cite

The aim of this study was to evaluate the correlation between the percent of inorganic filler by weight (wt. %) and by volume (vol. %) of 11 flowable resin composites (FRCs) and their mechanical properties. To establish the correlation, the quantity of inorganic filler was determined by combustion and shape/size analyzed by SEM images. The compressive strength (CS), flexural strength (FS), and flexural modulus (FM) were determined. The CS values were between 182.87-310.38 MPa, the FS values ranged between 59.59 and 96.95 MPa, and the FM values were between 2.34 and 6.23 GPa. The percentage of inorganic filler registered values situated between 52.25 and 69.64 wt. % and 35.35 and 53.50 vol. %. There was a very good correlation between CS, FS, and FM vs. the inorganic filler by wt. % and vol. %. (R2 = 0.8899–0.9483). The highest regression was obtained for the FM values vs. vol. %. SEM images of the tested FRCs showed hybrid inorganic filler for Filtek Supreme XT (A3) and StarFlow (A2) and a homogeneous type of inorganic filler for the other investigated materials. All of the FS values were above 50 MPa, the ISO 4049/2019 limit for FRCs.

show abstract

Section: Discussionmentioning

confidence: 61%

Influence of Filler Loading on the Mechanical Properties of Flowable Resin Composites

et al. 2020

View full text Add to dashboard Cite

show abstract

“…This result is consistent with previous studies, which indicated that dental composites reinforced with 3% n-TiO 2 exhibited superior mechanical properties compared to the control, with minimal effects on flowability and radiopacity. Thus, these reinforced composites are promising materials for applications in dental restorations [87,93,94].…”

Section: Titanium-based Fillers In Dentistrymentioning

confidence: 99%

“…Radiopacity of composite materials should exceed that of dentin. However, no definitive maximum limit has been identified [93]. Research into radiopaque polymers focuses on developing methods to increase the average electron density and specific gravity of polymers by incorporating heavy elements into these systems.…”

Section: Titanate-treated Titanium-based Fillersmentioning

confidence: 99%

Perspectives for Titanium-Derived Fillers Usage on Denture Base Composite Construction: A Review Article

Elshereksi

Ghazali

Muchtar

et al. 2014

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

Poly(methyl methacrylate) (PMMA) is an extensively used material in dentistry because of its aesthetics, processability, and reparability. However, PMMA is still far from being ideal in fulfilling the mechanical requirements of prosthesis. PMMA-based denture base polymers exhibit low fracture resistance and radiopacity behavior. Efforts to improve the mechanical and radiopacity properties of denture base materials through inclusion of silica-based fillers are ongoing. Although silane-treated siliceous fillers are commonly used, they are not sufficiently strong. They also exhibit cracks, which either cut through the glass fillers or propagate around the filler particles. This defect occurs when the dental composites are placed in aqueous oral environment because of the hydrolytic degradation of silica-based fillers and silane-coupling agents. The clinical problem of using silanes in adhesion promotion is bond degradation over time in oral environment. In addition, silanes do not bond effectively to nonsilica-based dental restorative materials. This review presents titanium-derived fillers as alternatives to siliceous fillers. Titanate-coupling agents are found to be effective couplers in treating Ti-based fillers because of their chemical compatibility and relatively high stability in aqueous environment.

show abstract

“…De forma geral os resultados positivos de resistência flexural, módulo de elasticidade e dureza dos cimentos aditivados mostram que várias propriedades podem ser beneficiadas pela atividade catalítica dos nt-TiO2, que fazem grande diferença em termos do número de ligações cruzadas e mobilidade da cadeia do polímero (SUN et al, 2011). Além disso, a grande área superficial dos nanotubos, de estrutura oca, permite um intertravamento com a matriz resinosa nas superfícies internas e externas dos tubos, atuando como reforço na estrutura e resultando em um material propriedades mecânicas melhoradas (DAFAR et al, 2016).…”

Section: Viabilidade Celular Indiretaunclassified

“…Porém a inserção de 0,3 e 0,9% em peso foram responsáveis pela maioria dos resultados favoráveis nesse estudo. A falta de isonomia dos resultados poderia ser amenizada pela funcionalização dos nanotubos uma vez que estruturas em escala nanométrica tendem a se aglomerar diminuindo sua dispersão no material (DAFAR et al, 2016).…”

Section: Viabilidade Celular Indiretaunclassified

Caracterização físico-química, mecânica e biológica de cimento autoadesivo aditivado com nanotubos de dióxido de titânio

Tonello¹

View full text Add to dashboard Cite

show abstract

Reinforcement of flowable dental composites with titanium dioxide nanotubes

Cited by 50 publications

References 110 publications

Influence of Filler Loading on the Mechanical Properties of Flowable Resin Composites

Influence of Filler Loading on the Mechanical Properties of Flowable Resin Composites

Perspectives for Titanium-Derived Fillers Usage on Denture Base Composite Construction: A Review Article

Caracterização físico-química, mecânica e biológica de cimento autoadesivo aditivado com nanotubos de dióxido de titânio

Contact Info

Product

Resources

About