Evaluation of a New Nano-filled Bonding Agent for Bonding Orthodontic Brackets as Compared to a Conventional Bonding Agent: An in vitro Study

Pai, Sandesh S; Nagendra, Amrita; Pai, Vinaya S; Neelima, K; Vishwanath, A.; Vinod, P; Kumar, Sharanya Ajit; Tubaki, Roopa R

doi:10.5005/jp-journals-10021-1115

Cited by 2 publications

(1 citation statement)

References 18 publications

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“…However, there are a number of studies frequently suggesting that the clinically adequate bond strength for a metal orthodontic bracket bonded to enamel should be between 6-8 MPa. us, the bond strength of 6-8 MPa was used as standard bond strength for most researchers and clinicians to refer to their studies and in clinical practice [20]. e result demonstrated that acid etching with 9.5% hydrofluoric acid on ceramic restorative materials enhanced the bond strength for both ceramic bracket and metal bracket bond to ceramic materials for each type of adhesive resin bonding materials.…”

Section: Discussionmentioning

confidence: 99%

Effect of Ceramic Surface Treatment and Adhesive Systems on Bond Strength of Metallic Brackets

Juntavee

Kumchai

Juntavee

et al. 2020

International Journal of Dentistry

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Objective. This study evaluated the effect of ceramic surface treatments on bond strength of metal brackets to machinable ceramics and veneering porcelain using different adhesive resins. Materials and methods. Machined ceramic specimens (10 × 10 × 2 mm) were prepared from Vitablocs mark II (Vita) and IPS e.max® CAD (Ivoclar). Layered porcelain fused to metal (IPS d.Sign®, Ivoclar) was used to fabricate PFM specimens (n = 60/group). Half of specimens were etched (9.6% HF, 15 sec), and the rest were nonetched. Three resin bonding systems were used for attaching metal brackets (Victory series™ APC II, 3M) to each group (n = 10): Transbond™ XT (3M), Light Bond™ (Reliance), or Blugloo™ (Ormco), all cured with LED curing unit (Bluephase G1600, Vivadent) for 50 s each. Specimens were immersed in deionized water at 37°C for 24 hours prior to shear bond testing (Instron) at crosshead speed of 0.5 mm/min. Debond surface of ceramic and bracket base was examined for failure mode (FM), Ceramic Damage Index (CDI), and Adhesive Remnant Index (ARI). ANOVA and post hoc multiple comparisons were used to analyze the differences in bond strength. The chi-squared test was used to determine significance effect of FM, CDI, and ARI. Results. Significant differences in shear bond strength among group were found (p≤0.05) related to ceramic, surface treatment, and resin cement. Conclusion. Bond strength of bracket to ceramic is affected by type of ceramic, resin cement, and ceramic surface conditioning. Etching ceramic surface enhanced ceramic-bracket bond strength. However, bond strengths in nontreated ceramic surface groups were still higher than bond strength required for bonding in orthodontic treatment.

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Section: Discussionmentioning

confidence: 99%

Effect of Ceramic Surface Treatment and Adhesive Systems on Bond Strength of Metallic Brackets

Juntavee

Kumchai

Juntavee

et al. 2020

International Journal of Dentistry

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Nanoparticles in orthodontics, a review of antimicrobial and anti-caries applications

Borzabadi‐Farahani

Borzabadi

Lynch

2013

Acta Odontologica Scandinavica

125

106

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Nanoparticles (NPs) are insoluble particles smaller than 100 nm in size. In order to prevent microbial adhesion or enamel demineralization in orthodontic therapy, two broad strategies have been used. These are incorporating certain NPs into orthodontic adhesives/cements or acrylic resins (nanofillers, silver, TiO2, SiO2, hydroxyapatite, fluorapatite, fluorohydroxyapatite) and coating surfaces of orthodontic appliances with NPs (i.e. coating bracket surfaces with a thin film of nitrogen-doped TiO2). Although the use of NPs in orthodontics can offer new possibilities, previous studies investigated the antimicrobial or physical characteristic over a short time span, i.e. 24 hours to a few weeks, and the limitations of in vitro studies should be recognized. Information on the long-term performance of orthodontic material using nanotechnology is lacking and necessitates further investigation and so do possible safety issues (toxicity), which can be related to the NP sizes.

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Evaluation of a New Nano-filled Bonding Agent for Bonding Orthodontic Brackets as Compared to a Conventional Bonding Agent: An in vitro Study

Cited by 2 publications

References 18 publications

Effect of Ceramic Surface Treatment and Adhesive Systems on Bond Strength of Metallic Brackets

Effect of Ceramic Surface Treatment and Adhesive Systems on Bond Strength of Metallic Brackets

Nanoparticles in orthodontics, a review of antimicrobial and anti-caries applications

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