Investigating the effect of incorporating nanosilver/nanohydroxyapatite particles on the shear bond strength of orthodontic adhesives

Akhavan, Azam; Ahmad, Shahzad; Mojtahedzadeh, F; Sodagar, Kosar

doi:10.3109/00016357.2012.741699

Cited by 106 publications

(83 citation statements)

References 15 publications

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“…In the present study, the shear bond strengths ranged from 13.1 to 14.6 MPa. Other previous studies using commercial orthodontic adhesive reported similar shear bond strengths values (Pithon et al 2007; Akhavan et al 2013). Hence, the new antibacterial DMADDM-containing orthodontic bracket cement of the present study with 3% DMADDM appeared to yield an adequate orthodontic bond strength to enamel.…”

Section: Discussionsupporting

confidence: 71%

“…Orthodontic bonding agents are in direct contact with the vulnerable enamel surface and their properties with respect to bacterial adhesion may play a key role on prevention of the starting process of net mineral loss. Preceding reports have suggested the incorporation of antibacterial agents such as nanosilver and nanohydroxyapatite into orthodontic cements to combat cariogenic biofilm (Ahn et al 2009; Akhavan et al 2013). …”

Section: Introductionmentioning

confidence: 99%

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Novel antibacterial orthodontic cement containing quaternary ammonium monomer dimethylaminododecyl methacrylate

Melo

Weir

et al. 2014

Journal of Dentistry

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Demineralized lesions in tooth enamel around orthodontic brackets are caused by acids from cariogenic biofilm. This study aimed to develop a novel antibacterial orthodontic cement by incorporating a quaternary ammonium monomer dimethylaminododecyl methacrylate (DMADDM) into a commercial orthodontic cement, and to investigate the effects on microcosm biofilm response and enamel bond strength. DMADDM, a recently-synthetized antibacterial monomer, was incorporated into orthodontic cement at 0%, 1.5%, 3% and 5% mass fractions. Bond strength of brackets to enamel was measured. A microcosm biofilm model was used to measure metabolic activity, lactic acid production, and colony-forming units (CFU) on orthodontic cements. Shear bond strength was not reduced at 3% DAMDDM (p > 0.1), but was slightly reduced at 5% DMADDM, compared to 0% DMADDM. Biofilm viability was substantially inhibited when in contact with orthodontic cement containing 3% DMADDM. Biofilm metabolic activity, lactic acid production, and CFU were much lower on orthodontic cement containing DMADDM than control cement (p < 0.05). Therefore, the novel antibacterial orthodontic cement containing 3% DMADDM inhibited oral biofilms without compromising the enamel bond strength, and is promising to reduce or eliminate demineralization in enamel around orthodontic brackets.

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Section: Discussionsupporting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Novel antibacterial orthodontic cement containing quaternary ammonium monomer dimethylaminododecyl methacrylate

Melo

Weir

et al. 2014

Journal of Dentistry

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“…Akhavan et al demonstrated that incorporating AgNPs into orthodontic adhesives could increase or maintain the shear bond strength of an orthodontic adhesive while simultaneously increasing its resistance to bacteria [110]. A recent study by Chladek et al found that incorporating AgNPs into dental composites could reduce the microbial colonization of lining materials, enhancing the antifungal efficiency [111].…”

Section: Dentistrymentioning

confidence: 99%

Current Development of Silver Nanoparticle Preparation, Investigation, and Application in the Field of Medicine

Murphy

Ting

Zhang

et al. 2015

Journal of Nanomaterials

143

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The invited review covers different research areas of silver nanoparticles (AgNPs), including the synthesis strategies of AgNPs, antimicrobial and anti-inflammatory properties of AgNPs, osteoconductive and osteoinductive activities of AgNP-based materials, and potential toxicity of AgNPs. The potential mechanisms of AgNP's biological efficacy as well as its potential toxicity are discussed as well. In addition, the current development of AgNP applications, especially in the area of therapeutics, is also summarized.

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“…Various load particles have been added to dental adhesives to strengthen the link of bond strength to the dental structure, diminishing polymerization shrinking and increasing the modulus of elasticity of the adhesive layer [12]. Recently, load nanoparticles [13][14][15][16], especially nanoparticles of ceramic materials [15,16], have been used in the formulation of composites, with the purpose of improving physical and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Characterization and Evaluation of Bond Strength of Dental Polymer Systems Modified with Hydroxyapatite Nanoparticles

Dumont¹,

Menezes-Silva²,

Almeida-Júnior³

et al. 2013

MSCE

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The study Modifies an adhesive system with hydroxyapatite nanoparticles as load, characterizes it and evaluates the effectiveness of its bond to dental structure. The middle thirds of healthy premolar tooth crowns were obtained, and each crown was sectioned vertically, resulting in two sections. The sections were divided into ten groups (n = 15), in which resin composite restorations were simulated: (G1E and G1D) conventional adhesive system (SAC); (G2E and G2D) SAC modified with HAP; (G3E and G3D) Primer modified with HAP; (G4E and G4D) monocomponent adhesive system; (G5E and G5D) self-etching adhesive system. The specimens were submitted to the microshear test and characterization technique. There was statistically significant difference (Kruskal-Wallis) between the groups (p < 0.01). G3 presented the highest bond strength to enamel (64.40 MPa, ±7.36) and dentin (39.59 MPa, ±21.46). The majority of specimens were found adhesive fractures. Bond strength to enamel and dentin of the primer modified with HAP of SAC showed higher values.

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Investigating the effect of incorporating nanosilver/nanohydroxyapatite particles on the shear bond strength of orthodontic adhesives

Abstract: Incorporation of silver/HA nanoparticles containing 5% and 1% silver maintains and increases the SBS of orthodontic adhesives, respectively, whereas increasing the amount of particles to 10% has an undesirable effect when compared to the control group.

Cited by 106 publications

References 15 publications

Novel antibacterial orthodontic cement containing quaternary ammonium monomer dimethylaminododecyl methacrylate

Novel antibacterial orthodontic cement containing quaternary ammonium monomer dimethylaminododecyl methacrylate

Current Development of Silver Nanoparticle Preparation, Investigation, and Application in the Field of Medicine

Characterization and Evaluation of Bond Strength of Dental Polymer Systems Modified with Hydroxyapatite Nanoparticles

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