An<i>in vitro</i>study on the retentive strength of orthodontic bands cemented with CPP-ACP-containing GIC

Heravi, Farzin; Bagheri, Hossein; Rangrazi, Abdolrasoul; Zebarjad, Seyed Mojtaba

doi:10.1088/2053-1591/3/12/125401

Cited by 13 publications

(14 citation statements)

References 31 publications

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“…Additionally, the microleakage decreased, but not significantly. The results of the previous study 7 showed that the modification of GIC with 1.56% (w/w) CPP-ACP had no negative effect on the retentive strength of the bands. The conclusion of these two studies is that the modification of GIC with 1.56% CPP-ACP offers favorable mechanical and microleakage properties.…”

Section: Discussionmentioning

confidence: 87%

“…The current study represents a continuation of our previous work 7 focusing on evaluating the retentive strength of orthodontic bands cemented with casein phosphopeptide-amorphous calcium phosphate (CPP-ACP)-containing glass ionomer cement (GIC). CPP-ACP, a novel caries preventive material, helps in remineralization and prevents caries by stabilizing the amorphous calcium phosphate phase and inhibiting its crystallization to hydroxyapatite.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Microleakage of Orthodontic Bands Cemented With CPP-ACP-Modified Glass Ionomer Cement

Heravi

Bagheri

Rangrazi

2019

Journal of Advanced Oral Research

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Aims and Objectives: In recent years, researchers have focused on finding methods of eliminating caries and white spot lesions under orthodontic bands without requiring patient cooperation. One of the effective and preventive strategies is the addition of antibacterial and remineralizing agents to the band cement. However, modifying the cement should not lead to microleakage and weakening of its mechanical properties. This in vitro study represents a continuation of our previous work of investigating the retentive strength of orthodontic bands cemented with casein phosphopeptide-amorphous calcium phosphate (CPP-ACP)-modified glass ionomer cement (GIC). Material and Methods: 60 extracted human premolars were randomly divided into two groups (n = 30). In group 1, stainless steel bands were cemented with GIC. In group 2, a novel dental caries-preventive material, CPP-ACP, was incorporated into the GIC for cementing. The microleakage of each group was measured by the fluid filtration method. Results: Results showed no statistically significant difference in microleakage of either group (GIC and CPP-ACP-modified GIC). Conclusion: We concluded that 1.56% w/w CPP-ACP can be incorporated with GIC for cementing orthodontic bands without promoting microleakage.

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Section: Discussionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Evaluation of Microleakage of Orthodontic Bands Cemented With CPP-ACP-Modified Glass Ionomer Cement

Heravi

Bagheri

Rangrazi

2019

Journal of Advanced Oral Research

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“…In recent years, researchers have focused on preventive methods that do not require patient cooperation [ 10 ]. Addition of antimicrobial agents to dental materials is one of the effective strategies to enhance the antimicrobial properties of these materials.…”

Section: Introductionmentioning

confidence: 99%

Incorporation of Chitosan Nanoparticles into a Cold-Cure Orthodontic Acrylic Resin: Effects on Mechanical Properties

2021

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Improvement of the antibacterial properties of acrylic resins, used in the construction of removable orthodontic appliances, is an important strategy to reduce the incidence of caries and oral diseases in orthodontic treatments. The addition of antimicrobial agents to acrylic resins is one of the effective methods to enhance the antimicrobial properties of these materials. However, one main concern is that modification of acrylic resin has negative effects on its mechanical properties. Recently, chitosan nanoparticles (NPs), as biocompatible and biodegradable polysaccharides with remarkable antimicrobial properties, have been used in different areas of dentistry and medicine. This study aimed to investigate the effects of adding chitosan NPs on the mechanical properties of a cold-cure orthodontic acrylic resin. The chitosan NPs were added to the acrylic resin in various weight percentages: 0% (control), 0.5%, 1%, 2%, and 4%. The flexural strength, compressive strength, Vickers microhardness, and impact strength measurements were performed for all five groups. The results showed that adding up to 1% (w/w) chitosan NPs to an acrylic resin had no significant negative effects on its flexural strength and compressive strength, while it decreased these parameters at weight percentages of 2% and 4% (w/w). The results also revealed that modification of acrylic resin with chitosan NPs up to 4% had no significant negative effects on the microhardness and impact strength of acrylic resin. In conclusion, the addition of chitosan NPs up to 1% (w/w) had no significant negative effects on the mechanical properties of cold-cure acrylic resin.

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“…In addition, several metal and metal oxide nanoparticles (NPs) have proven effective against cariogenic bacteria, such as silver, zinc oxide, magnesium oxide, titanium dioxides, gold, and copper oxide [13]. On the other hand, non-metallic NPs have been utilized as antibacterial and remineralizing agents; such examples are chitosan [14], hydroxyapatite [15], bioactive glass [16], and casein phosphopeptide-amorphous calcium phosphate [17][18][19][20]. Research development regarding nanomaterials' anticaries properties could result in the discovery of novel, effective agents against dental caries.…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial Activity of Colloidal Selenium Nanoparticles in Chitosan Solution against Streptococcus mutans, Lactobacillus acidophilus, and Candida albicans

Darroudi

Rangrazi

Ghazvini

et al. 2021

Pesqui. Bras. Odontopediatria Clín. Integr.

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Objective: To investigate the antimicrobial activity of colloidal selenium nanoparticles in chitosan solution (Cts-Se-NPs) against Streptococcus mutans, Lactobacillus acidophilus, and Candida albicans. Material and Methods: Cts-Se-NPs solution was prepared using a simple chemical reduction method. The MIC and MBC against S. mutans, L. acidophilus, and C. albicans were determined using the broth dilution assay. Results: The Cts-Se-NPs had remarkable antimicrobial activity against S. mutans, L. acidophilus, and C. albicans. The MIC values of the Cts-Se-NPs were lowest for S. mutans (0.068 mg/ml) compared to L. acidophilus (0.137 mg/ml), and C. albicans (0.274 mg/ml). The MBC values of the Cts-Se-NPs against the microorganisms after one, two, six, and 24 hours indicated that the concentration of 0.274 mg/ml of Cts-Se-NPs completely killed S. mutans, L. acidophilus, and C. albicans after one, two, and six hours, respectively. At the concentration of 0.137 mg/ml, S. mutans and L. acidophilus were killed after six and 24 hours, respectively. Conclusion: These findings encourage the potential use of Cts-Se-NPs in dentistry, while further clinical research is required in this area.

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Anin vitrostudy on the retentive strength of orthodontic bands cemented with CPP-ACP-containing GIC

Cited by 13 publications

References 31 publications

Evaluation of Microleakage of Orthodontic Bands Cemented With CPP-ACP-Modified Glass Ionomer Cement

Evaluation of Microleakage of Orthodontic Bands Cemented With CPP-ACP-Modified Glass Ionomer Cement

Incorporation of Chitosan Nanoparticles into a Cold-Cure Orthodontic Acrylic Resin: Effects on Mechanical Properties

Antimicrobial Activity of Colloidal Selenium Nanoparticles in Chitosan Solution against Streptococcus mutans, Lactobacillus acidophilus, and Candida albicans

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