Comparative Evaluation of Mechanical Properties of Titanium Dioxide Nanoparticle Incorporated in Composite Resin as a Core Restorative Material

Sihivahanan, Dhanasekaran; Nandini, Vidyashree

doi:10.5005/jp-journals-10024-3105

Cited by 8 publications

(3 citation statements)

References 20 publications

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“…After 24 h of maintaining at 40–50°C, it was again mixed manually in the mortar for about an hour and kept back in the oven at 40–50°C [ 20 ]. This process was continued for 5–7 days or till desired consistency to obtain the dental composite [ 6 ].…”

Section: Methodsmentioning

confidence: 99%

Development of Novel Antimicrobial Dental Composite Resin with Nano Cerium Oxide Fillers

Varghese

Sihivahanan

Venkatesh

2022

International Journal of Biomaterials

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Objectives. To assess the antibacterial efficacy of experimental dental composite resin with cerium oxide nanoparticles as fillers. Methods. The cerium oxide nanoparticles were prepared by the coprecipitation procedure. Synthesized 3wt% CeO2 nanoparticles were added to the composite resin as antibacterial filler. Experimental composite resin was manually prepared by adding ingredients. The resin matrix consisted of two mixed monomers, bisphenol A-glycidyl methacrylate and triethylene glycol dimethacrylate, diketone as the photo initiator, and N, N-dimethylaminoethyl methacrylate as a coinitiator. The antibacterial efficacy against Streptococcus mutans, Streptococcus mitis, Streptococcus aureus, and Lactobacillus spp. bacterial strains was tested using the microdilution method keeping commercially available 3M Filtek Z250 restorative composite as control. Results. The experimental dental composite demonstrated 99.503% efficacy against Streptococcus mutans, 99.441% efficacy against Streptococcus mitis, 99.416% efficacy against Streptococcus aureus, and 99.233% efficacy against Lactobacillus spp. Conclusion. Integrating cerium oxide nanoparticles as fillers into dental composite resin can be promising in terms of antibacterial activity, provided furthermore study has to be conducted to examine other properties. Clinical Significance. Previous studies attempted adding CeO2 nanoparticles into acrylic resins that showed improvement in mechanical properties, but literature is nil on the dental composite resin and cerium oxide nanoparticles. This study demonstrates the development of an experimental antibacterial dental composite resin that can resolve most of the problems related to secondary caries around dental composite restorations.

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Section: Methodsmentioning

confidence: 99%

Development of Novel Antimicrobial Dental Composite Resin with Nano Cerium Oxide Fillers

Varghese

Sihivahanan

Venkatesh

2022

International Journal of Biomaterials

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“…Specimens (n = 18) from each tested composite materials were prepared in the same way in the line with ISO (ISO 4104 _ 1984) (Sihivahanan and Nandini, 2021). The specimens were obtained by filling the composite materials in a cylindrical plastic mold (4mm in diameter and 6 mm in height) and pressing them between two glass slides covered with strips of polyester.…”

Section: Diametral Tensile Strength (Dts) Testmentioning

confidence: 99%

“…They were exposed to compression loading until failure at 1 mm/min crosshead speed. The DTS were calculated in MPa according to the following formula (Sihivahanan and Nandini, 2021): DTS= 2F/𝜋ID Where: F is the maximum applied load in newton (N); D is the diameter of the specimens in mm (4mm) ,l is the length of the specimen in mm(6mm), and 𝜋 = 3.1416.…”

Section: Diametral Tensile Strength (Dts) Testmentioning

confidence: 99%

Comparison of The Mechanical Properties for Fiber Reinforced And Bulkfill Composites

Saleem

Rasheed²

2022

UOD

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purpose: To assess and compare specific mechanical characteristics including ; flexural strength (FS), fracture toughness (FT) and diametral tensile strength (DTS) of two short fiber reinforced composites formulation (SFRCs) (everXPosterior and everXFlow , GC Corporation ,Tokyo, Japan) with one of conventional bulkfill composite (CBF) (Tetric R N-Ceram, Ivoclar Vivadent AG, Schaan, Liechtenstein). Methods: The properties investigated were flexural strength (FS), fracture toughness (FT), and diametral tensile strength (DTS) following ISO standards. For each investigated test the prepared specimens were divided in to three groups, G1 were fabricated from conventional bulkfill composite (Tetric R N-Ceram, Ivoclar Vivadent AG), G2 were fabricated from SFRCs (everXPosterior, GC Corp) and G3 from SFRCs (everXFlow, GC Corp). Consequently, they were incubated in distilled water at 37˚C for 24 h before operating the mechanical tests. The specimens were assessed in a universal material testing machine at 1.0 mm/min crosshead speed until failure. The data were be statistically evaluated with SPSS (Statistical Package for Social Science Ver.25) using Analysis Of Variance (ANOVA) followed by a Tukey HSD a test to define the differences between the tested groups. Results: The SFRC everXPost. and everXFlow exhibited significantly higher flexural strength (100.2 MPa, 99.1 MPa) and fracture toughness (1.23 MPa m 1/2 , 1.16 MPa m 1/2, ) values respectively than bulk fill conventional composite (Tetric R N-Ceram)( 58.2 MPa, 0.6 MPa m 1/2 ). The DTS of everXFlow was statistically superior (54.3 MPa) than the everXPost. composite (44 MPa) and conventional bulkfill (Tetric R N-Ceram) composite (37.3MPa). Conclusion: According to the obtained results the SFRCs everXPost. and everXflow showed better mechanical properties than conventional bulkfill composite and could be applied well in posterior restorations.

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Photocatalysis and Antibacterial Activity Studies of Biopolymer Incorporated Green Synthesized Nano TiO2 Without UV Rays Irradiation

Mary¹,

Vidya²

2023

J Inorg Organomet Polym

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Comparative Evaluation of Mechanical Properties of Titanium Dioxide Nanoparticle Incorporated in Composite Resin as a Core Restorative Material

Cited by 8 publications

References 20 publications

Development of Novel Antimicrobial Dental Composite Resin with Nano Cerium Oxide Fillers

Development of Novel Antimicrobial Dental Composite Resin with Nano Cerium Oxide Fillers

Comparison of The Mechanical Properties for Fiber Reinforced And Bulkfill Composites

Photocatalysis and Antibacterial Activity Studies of Biopolymer Incorporated Green Synthesized Nano TiO2 Without UV Rays Irradiation

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