Dental resin composites: A review on materials to product realizations

Cho, Ki Ho; Rajan, Ginu; Farrar, Paul; Prentice, Leon H.; Prusty, B. Gangadhara

doi:10.1016/j.compositesb.2021.109495

Cited by 104 publications

(78 citation statements)

References 278 publications

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“…These properties lead to a greater degree of crosslinking [ 103 , 105 ], allowing a lower co-monomer content and still achieving high conversion with lower polymerization stress compared to BisGMA-based composites [ 106 ]. However, UDMA-based dental composites exhibit higher volumetric shrinkage and shrinkage stress than Bis-GMA-based composites [ 106 , 107 ], thus leading to more brittle mechanical characteristics [ 108 ]. Therefore, the specific monomer composition of dental resins is tailored to the area of application and may even include both base monomers [ 109 , 110 ].…”

Section: Discussionmentioning

confidence: 99%

A Pilot Study on Monomer and Bisphenol A (BPA) Release from UDMA-Based and Conventional Indirect Veneering Composites

et al. 2022

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This study aimed to investigate the release of common monomers from conventional (Dialog Vario, Enamel Plus HFO) and UDMA-based indirect veneering composites (VITA VM LC, GC Gradia). Ten cylindrical samples of each material were prepared (n = 40), immersed in HPLC grade water, and incubated for 24 h in an incubation shaker at 37 °C and 112 rpm. Extraction was performed following ISO 10993-12 and monomers were detected and quantified by HPLC-MS/MS. In all the samples, urethane dimethacrylate (UDMA) and bisphenol A (BPA) were quantifiable. Compared to water blanks, BPA levels were only elevated in the eluates from conventional composites. In all other samples, concentrations were in the range of extraneous BPA and were therefore clinically irrelevant. Low concentrations of Bisphenol A-glycidyl methacrylate (BisGMA) were found in one BPA-free composite and in both conventional materials. Statistical analyses showed that BPA-free materials released significantly less BisGMA and no BPA, while UDMA elution was comparable to elution from conventional materials. All measured concentrations were below reported effective cytotoxic concentrations. Considering these results, the substitution of BPA-derivatives with UDMA might be beneficial since BPA-associated adverse effects are ruled out. Further studies should be enrolled to test the biocompatibility of UDMA on cells of the oral environment.

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Section: Discussionmentioning

confidence: 99%

A Pilot Study on Monomer and Bisphenol A (BPA) Release from UDMA-Based and Conventional Indirect Veneering Composites

et al. 2022

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“…Most researchers utilize the ASTM D638 standard to assess the tensile characteristics and the ASTM D790 standard to determine the stiffness for the material used for dental applications like toothbrushes or biomedical applications like implants [46,[83][84][85][86][87][88][89].…”

Section: Comparison Of the Mechanicalmentioning

confidence: 99%

Physical, Mechanical, and Thermal Properties and Characterization of Natural Fiber Composites Reinforced Poly(Lactic Acid): Miswak (Salvadora Persica L.) Fibers

Diyana

Abdan

Sapuan

et al. 2022

International Journal of Polymer Science

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7000 years ago, miswak fiber (MF) was used as a toothbrush for oral care. However, since the emergence of plastic materials, it monopolized the oral care industry. The increment of plastic products also promotes accumulation of plastic wastes after its disposal. Thus, many researchers have turn to biodegradable products to reduce this problem. The aim of this study is to investigate the chemical, physical, and mechanical properties of MF as reinforcement in composites that are suitable to replace the toothbrush materials. The MF was reinforced in PLA composite with different weight percentage (0%, 10%, 20%, and 30%) and undergoes several types of testing. The chemical results show that there were high presence of cellulose in the fiber which could act as medium to transfer stress load equally from fiber to matrix. However, the results show low cellulosic contents in MF that affects the poor interfacial bonding between fiber and matrix. Physical properties shows a positive indication to be used as a toothbrush handle. As the fiber content increases, the density also increased. SEM micrographic illustrated the presence of voids as the cause for reduction in mechanical properties of composites. The mechanical results show the proposed material is comparable to the materials used in commercial applications. As for the thermal result, the TGA test melting point of the proposed composite material was comparable to the pure PLA, which means the proposed material can use similar processing temperature as PLA. DSC shows that Tg of PLA/MF composite is found to be similar to Tg in loss modulus of composites. DMA finding found that PLA/MF30 have the highest storage modulus 2062 MPa and the lowest tan δ 0.6 among PLA/MF composites. This concludes that there is a possibility of using these materials as an alternative in composites and increase the fiber strength by using pretreatments and/or compatibilizer.

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“…Contemporary resin composites are characterized by favorable mechanical properties and excellent esthetics, which makes them the materials of choice for multiple indications in restorative dentistry, prosthodontics, pedodontics, and orthodontics [ 1 ]. An important shortcoming that has still not been overcome despite all advances is the high risk of developing a recurrent carious lesion at the tooth/restoration margin.…”

Section: Introductionmentioning

confidence: 99%

“…In efforts to decrease the susceptibility of resin composites to secondary caries by rendering them “remineralizing” or “bioactive”, various modifications have been attempted, from formulating hybrid resin composite/glass ionomer materials [ 5 ] or including the pre-reacted glass ionomer as part of the filler [ 6 ], to modifying the conventional glass-filled dimethacrylate resin by including ion-releasing fillers [ 7 , 8 ]. Extensive research of this approach has shown that various fillers (monocalcium, dicalcium, tricalcium, and octacalcium phosphate; amorphous calcium phosphate, hydroxyapatite, and bioactive glasses) can be used to release remineralizing ions that could shift the demineralization/remineralization equilibrium towards remineralization, thus reducing the incidence of secondary caries [ 1 , 9 , 10 ]. Unlike reinforcing fillers, the ion-releasing fillers are typically unsilanized to allow water access to the particle surface, which facilitates ion release.…”

Section: Introductionmentioning

confidence: 99%

Improved Flexural Properties of Experimental Resin Composites Functionalized with a Customized Low-Sodium Bioactive Glass

et al. 2022

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This study evaluated the flexural properties of an experimental composite series functionalized with 5–40 wt% of a low-Na F-containing bioactive glass (F-series) and compared it to another experimental composite series containing the same amounts of the conventional bioactive glass 45S5 (C-series). Flexural strength and modulus were evaluated using a three-point bending test. Degree of conversion was measured using Fourier-transform infrared spectroscopy. Weibull analysis was performed to evaluate material reliability. The control material with 0 wt% of bioactive glass demonstrated flexural strength values of 105.1–126.8 MPa). In the C-series, flexural strength ranged between 17.1 and 121.5 MPa and was considerably more diminished by the increasing amounts of bioactive glass than flexural strength in the F-series (83.8–130.2 MPa). Analogously, flexural modulus in the C-series (0.56–6.66 GPa) was more reduced by the increase in bioactive glass amount than in the F-series (5.24–7.56 GPa). The ISO-recommended “minimum acceptable” flexural strength for restorative resin composites of 80 MPa was achieved for all materials in the F-series, while in the C-series, the materials with higher bioactive glass amounts (20 and 40 wt%) failed to meet the requirement of 80 MPa. The degree of conversion in the F-series was statistically similar or higher compared to that of the control composite with no bioactive glass, while the C-series showed a declining degree of conversion with increasing bioactive glass amounts. In summary, the negative effect of the addition of bioactive glass on mechanical properties was notably less pronounced for the customized bioactive glass than for the bioactive glass 45S5; additionally, mechanical properties of the composites functionalized with the customized bioactive glass were significantly less diminished by artificial aging. Hence, the customized bioactive glass investigated in the present study represents a promising candidate for functionalizing ion-releasing resin composites.

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Dental resin composites: A review on materials to product realizations

Cited by 104 publications

References 278 publications

A Pilot Study on Monomer and Bisphenol A (BPA) Release from UDMA-Based and Conventional Indirect Veneering Composites

A Pilot Study on Monomer and Bisphenol A (BPA) Release from UDMA-Based and Conventional Indirect Veneering Composites

Physical, Mechanical, and Thermal Properties and Characterization of Natural Fiber Composites Reinforced Poly(Lactic Acid): Miswak (Salvadora Persica L.) Fibers

Improved Flexural Properties of Experimental Resin Composites Functionalized with a Customized Low-Sodium Bioactive Glass

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