Effects of the crosslinking of chitosan/DCPA particles in the antimicrobial and mechanical properties of dental restorative composites

Kikuchi, Lucia Nobuco Takamori; Freitas, Selma Regina Muniz; Amorim, Aldo Ferreira; Delechiave, Giovanne; Catalani, Luiz Henrique; Braga, Roberto Ruggiero; Moreira, Maria Stella; Boaro, Letícia Cristina Cidreira; Gonçalves, Flávio de Oliveira

doi:10.1016/j.dental.2022.06.024

Cited by 5 publications

(2 citation statements)

References 45 publications

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“…The data delineated that the presence of Chs decreased the tensile strength of the resin, nevertheless within an acceptable limit compared to Thr, and complied with other studies' findings considering the extent of filler dispersion, size, and aspect ratio [75][76][77]. Moreover, this might be due to reinforcement and the enhanced interfacial bonding effect of Chs dispersed in resin due to their high surface area, producing a network-like structure.…”

Section: Tensile Strengthsupporting

confidence: 88%

The Impact of Adding Chitosan Nanoparticles on Biofilm Formation, Cytotoxicity, and Certain Physical and Mechanical Aspects of Directly Printed Orthodontic Clear Aligners

Taher,

Rasheed

2023

Nanomaterials

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Aligner treatment is associated with bacterial colonization, leading to enamel demineralization. Chitosan nanoparticles have been demonstrated to have antibacterial properties. This in vitro study aims to determine the effect of adding chitosan nanoparticles to directly 3D-printed clear aligner resin with regard to antibiofilm activity, cytotoxicity, degree of conversion, accuracy, deflection force, and tensile strength. Different concentrations (2%, 3%, and 5% w/w) of chitosan nanoparticles were mixed with the clear resin, and the samples were then 3D printed. Additionally, the thermoforming technique for aligner manufacturing was utilized. The obtained specimens were evaluated for antibiofilm activity against Streptococcus mutans bacteria and cytotoxicity against L929 and 3T3 cell lines. Additionally, Fourier transform infrared spectroscopy via attenuated total reflection analysis was used to assess the degree of conversion. Geomagic Control X software was utilized to analyze the accuracy. In addition, the deflection force and tensile strength were evaluated. The results indicated a notable reduction in bacterial colonies when the resin was incorporated with 3 and 5% chitosan nanoparticles. No significant changes in the cytotoxicity or accuracy were detected. In conclusion, integrating biocompatible chitosan nanoparticles into the resin can add an antibiofilm element to an aligner without compromising the material’s certain biological, mechanical, and physical qualities at specific concentrations.

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Section: Tensile Strengthsupporting

confidence: 88%

The Impact of Adding Chitosan Nanoparticles on Biofilm Formation, Cytotoxicity, and Certain Physical and Mechanical Aspects of Directly Printed Orthodontic Clear Aligners

Taher,

Rasheed

2023

Nanomaterials

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“…When acrylic resin was mixed with chitosan only, the tensile strength of the resin decreased, but it was still within an acceptable range when compared to the control group that did not add chitosan. These results were consistent with those of other studies that examined the size, aspect ratio, degree of filler dispersion, and adding other filler or materials to the composite [23][24][25]. This network strengthens the composite material and raises the stress distribution and modulus of elasticity [26] and this might be due to reinforcement and the enhanced interfacial bonding effect of chitosan composites which dispersed in resin CHEMICAL PROBLEMS 2024 no.…”

Section: Introductionsupporting

confidence: 90%

Effects of Addition of Chitosan and Dicarboxylic Acid on Properties of 3d Printable Acrylic Resin Denture Base

Al-Takai,

AL-Nema,

Jabrail

2024

Chemical Problems

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3D-printing has gained popularity in recent years due to the many advantages it offers over the traditional approaches for instance this technology reduces the time a dentist needs to create and fit dentures to just 2–3 sessions. Fumaric, maleic, and adipic acids with the percentage (0.1 wt.%) were added to chitosan solution (2 wt.%) and the final composite was added to the 3D printable acrylic resin. The specimens were examined for several chemical analyses (XRD, SEM, FTIR) and mechanical tests (impact strength and surface hardness tests), where the total number (115) of specimens used in the study was specimens divided into five groups. In chemical analysis, one specimen was constructed for each modified group and one specimen was used as the control group (3d printable resin without addition (non-modified) for each test. For mechanical tests ten specimens were constructed for each modified group and ten specimens were used as the control group (3d printable resin without addition (non-modified) for each test. The results of chemical analysis showed improvement in the properties of modified 3d printable acrylic denture base resin, additionally the mechanical test results showed that the (Fumaric acid and Maliec acid with Chitosan) specimens have the highest properties in comparison with other specimens, while the lowest properties were for specimens of 3D printable acrylic resin with chitosan. The chemical and mechanical properties of the modified 3D-printed denture base are improved when chitosan is modified with dicarboxylic acids. Conversely, if chitosan alone is used to modify the 3D-printed polymers, the mechanical and chemical properties would be decreased.

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Chitosan-Based Biomaterials for Hemostasis and Wound Healing

Araneda Cisternas,

Varaprasad

2024

Advances in Polymer Science

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Effects of the crosslinking of chitosan/DCPA particles in the antimicrobial and mechanical properties of dental restorative composites

Cited by 5 publications

References 45 publications

The Impact of Adding Chitosan Nanoparticles on Biofilm Formation, Cytotoxicity, and Certain Physical and Mechanical Aspects of Directly Printed Orthodontic Clear Aligners

The Impact of Adding Chitosan Nanoparticles on Biofilm Formation, Cytotoxicity, and Certain Physical and Mechanical Aspects of Directly Printed Orthodontic Clear Aligners

Effects of Addition of Chitosan and Dicarboxylic Acid on Properties of 3d Printable Acrylic Resin Denture Base

Chitosan-Based Biomaterials for Hemostasis and Wound Healing

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