Resin-Based Dental Composite Materials

Marghalani, Hanadi Y.

doi:10.1007/978-3-319-09230-0_22-1

Cited by 14 publications

(7 citation statements)

References 41 publications

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“…These filling alloys were also prone to corrosion, and toxicological reactions of gallium became a challenge. After this era, resin-based composites progressed as endodontic filling around 1960s [8]. Modernized dental composites consist of paste with the mixture of dimethacrylate monomers along with cross-linking including silanecoatings and ceramic particulates, and this composite paste was used to seal cavities.…”

Section: Introductionmentioning

confidence: 99%

Strategies of Bioceramics, Bioactive Glasses in Endodontics: Future Perspectives of Restorative Dentistry

Chitra

Mathew

Jayalakshmi

et al. 2022

BioMed Research International

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Prevalently, there is a primary strategy to cure caries using restorative materials notably bioceramics. Existing synthetic materials stimulate natural tooth structure with acceptable interfacial bonding and esthetic and biomechanical qualities with better durability. Several bioceramics have been introduced and investigated for their potentialities as restorative materials. Biomineralization of tooth initiates repair and regeneration of natural dental tissue and reinstating the integrity of periodontium. In the evolution of bioceramics in the aspects of different essential composition for dental application, recent technology and modern strategies revolutionize the restorative dentistry. Bioglass is one among the important bioceramics as a restorative material, and by regulating the properties of the material, it is possible to construct improved formulation towards restoration. This article reviews the current revolution of endodontics, existing restorative materials, and technologies to be achieve for engineering materials with the better design.

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Section: Introductionmentioning

confidence: 99%

Strategies of Bioceramics, Bioactive Glasses in Endodontics: Future Perspectives of Restorative Dentistry

Chitra

Mathew

Jayalakshmi

et al. 2022

BioMed Research International

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“…The filler concentration greatly influences the behavior of the composite material and interrelated to the other factors. Therefore, optimizing one parameter may compromise the others [14].…”

Section: Introductionmentioning

confidence: 99%

Effect of hydroxyapatite filler concentration on mechanical properties of poly (methyl methacrylate) denture base

Aldabib¹,

Ishak

2020

SN Appl. Sci.

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Poly (methyl methacrylate) or PMMA is an acrylic material has been used widely as a denture base material. The denture base is subjected to various stresses during the function, these include tensile and flexural stresses. The current study was aimed to experimentally evaluate the effect of different filler concentrations on physical and mechanical characteristics of PMMA/HA composite. PMMA reinforced with different ratios (i.e. 0, 5, 10, and 15 wt%) of silane treated HA were prepared to study the effect of HA concentration on the mechanical properties of acrylic denture base material. Tensile, flexural and fracture toughness tests were conducted to evaluate the mechanical performance. The fracture surfaces of all the composites were studied using scanning electron microscopy. The hardness of the composite was investigated using Vickers hardness. Independent t-test was also conducted to evaluate the significant difference in the values measured as a function of different filler loading. Data analyses showed a significant improvement (P < 0.05) in the tensile and flexural modulus of the composite 26% and 27.3% respectively, as a result of increasing the HA loading to 15 wt%. However, no significant difference (P > 0.05) was detected in the tensile and flexural strength as function of HA incorporation. A small increment of only 1.63% and 3% in the tensile and flexural strength respectively, was achieved at very low filler loading i.e. 5 wt%. An improvement of only 7.8% in the surface hardness was observed for PMMA loaded with 15 wt% of HA.

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“…Surface smoothness has been viewed as vital property of resin composite. 11,12 Surface properties of resin composite have a crucial role in the clinical success of the restoration; smooth appearance is a result from adequate contouring, proper finishing and polishing which is mandatory for healthy oral tissues and marginal integrity. 13 On the other hand, a rough surface has a negative effect on the esthetics.…”

Section: Resultsmentioning

confidence: 99%

Effect of Finishing/Polishing Techniques on Surface Roughness of Three Different Resin Composite Materials: A laboratory Study

2022

Mansoura Journal of Dentistry

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Objective: To determine the changes in surface roughness of different resin based composite materials having spherical shaped fillers after finishing and polishing with different systems and various application steps either one, two or threesteps. Materials and Methods: A total of 120 disc-shaped specimens (10 mm diameter × 2 mm thickness) were prepared from three different RBC materials (n=40 discs/group): a Nano-fill resin composite (Omnichroma); a Nanoceramic resin composite (Neo Spectra ST) and a Nano-hybrid resin composite (Charisma Topaz). Each group was subdivided into four subgroups (n=10) according to the finishing/polishing (F/P) system: control (without F/P), one-step system (Enhance); two-step system (Super Snap Rainbow); and three-step system (Soflex). The mean Ra was measured using the profilometer. To compare the surface roughness between RBC materials without and after F/P, the collected data were subjected to statistical analysis using two-way analysis of variance (ANOVA), Student's t-test and One-way ANOVA with Tukey's post hoc tests. The level of significance was seated p<0.05. Results: The Nano-fill resin composite showed the lowest mean Ra while the Nano-ceramic resin composite showed the highest value. A statistically significant difference was found in Ra and without and after F/P for the three RBC materials (p<0.001). Conclusions:The various finishing and polishing systems had a noticeable effect on the surface roughness of the RBCs. The Nano-fill resin composite had the lowest surface roughness. The two-step F/P system provided the best F/P protocol of resin based composites evaluated.

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Resin-Based Dental Composite Materials

Cited by 14 publications

References 41 publications

Strategies of Bioceramics, Bioactive Glasses in Endodontics: Future Perspectives of Restorative Dentistry

Strategies of Bioceramics, Bioactive Glasses in Endodontics: Future Perspectives of Restorative Dentistry

Effect of hydroxyapatite filler concentration on mechanical properties of poly (methyl methacrylate) denture base

Effect of Finishing/Polishing Techniques on Surface Roughness of Three Different Resin Composite Materials: A laboratory Study

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