Evaluation of the Shear Bond Strength of Chitosan Nanoparticles-Containing Orthodontic Primer: An In Vitro Study

Objectives. The present study was intended to investigate the effect of different concentrations of chitosan nanoparticles mixed with an orthodontic primer on the shear bond strength and bond failure of stainless steel brackets bonded to dental enamel. Methods. Four concentrations of chitosan nanopa...

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Bibliographic Details
Published in:International journal of dentistry 2023, Vol.2023, p.9246297-8
Main Authors: Mohammed, Rawnaq R., Rafeeq, Reem A.
Format: Article
Language:English
Subjects:
Adhesives
Bond strength
Chitosan
Dental enamel
Electron microscopes
Enamel
Investigations
Nanoparticles
Normal distribution
Orthodontics
Premolars
Scanning electron microscopy
Stainless steel
Statistical analysis
Teeth
X-ray diffraction
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Summary:Objectives. The present study was intended to investigate the effect of different concentrations of chitosan nanoparticles mixed with an orthodontic primer on the shear bond strength and bond failure of stainless steel brackets bonded to dental enamel. Methods. Four concentrations of chitosan nanoparticles (0%, 1%, 5%, and 10%) were prepared and mixed with Transbond™ XT primer. Forty-eight extracted maxillary first premolars were bonded under a standardized procedure with stainless steel orthodontic brackets utilizing those different concentrations (12 teeth per each group). After the bonding procedure, the specimens were stored in deionized water (37°C for 24 hr) and then thermocycling 5,000 times before shear bond testing, which was performed using a universal testing device. Bond failure sites were examined under a stereomicroscope. Scanning electron microscopy and X-ray diffraction were also performed to verify and evaluate the phase of the nanopowder. Results. The data were statistically analyzed using one-way analysis of variance) and Kruskal–Wallis H tests, and the findings revealed statistically nonsignificant group differences regarding the shear bond strength and adhesive remnant index (p>0.05). Conclusions. Primers containing varying concentrations of chitosan nanoparticles demonstrated acceptable shear bonding strength and adhesive remnant index.
ISSN:1687-8728
1687-8736
DOI:10.1155/2023/9246297