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74368

COMPARISON OF SHEAR BOND STRENGTH OF METAL AND CERAMIC ORTHODONTIC BRACKETS AFTER ADDING NANOPARTICLES OF SILVER

Article

Last updated: 22 Jan 2023

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Abstract

Objective: To evaluate effect of nanoparticles of silver (NAg) added on Nano-Bond adhesive system and its effect on shear bond strength of brackets attached to enamel.
Materials and methods: Thirty extracted premolar teeth for orthodontic reasons were divided into two groups; First group metal brackets and second group the ceramic brackets were bonded by Nano-Bond adhesive system containing (NAg) with concentration 0.05%. Every group was further subdivided into 2subgroups with 5 teeth each; Groups A1, B1 (Teeth not subjected to thermocycling and cyclic loading), Groups A2, B2 [(Teeth subjected to thermocycling (500cycles) and cyclic loading (90N, 0.8-1 cycles/sec. 100,000 cycles)]
Enamel etched then the adhesives were applied to the entire enamel surface according to bonding agent containing (NAg) or not, then light cured for 10 seconds with LED. The base of brackets were filled by nano-filled composite resin and placed on the tooth and cured by LED for 40 seconds. The recorded values of bond strengths in (MPa) were collected, tabulated and statistically analyzed. One way analysis of variance (ANOVA) and Tukey's tests were used for testing the significance between the means of tested groups which are statistically significant when the
P value ≤ 0.05.
Results: shear bond strength of metal brackets bonded by Nano-Bond adhesive containing nanoparticles of silver (NAg) (Group A) was significantly higher than shear bond strength of ceramic brackets (group B).
Conclusions: The adhesive shear strengths are high for metal bracket bonded by Nano-Bond adhesive system containing nanoparticles of silver (NAg) with concentration 0.05% than ceramic bracket.

DOI

10.21608/edj.2017.74368

Authors

First Name

Yousef

Last Name

Althomali

MiddleName

M.

Affiliation

Assistant Professor Department of Orthodontic, Faculty of Dental Medicine, Taif University, Taif, Saudi Arabia.

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Volume

63

Article Issue

Issue 1 - January (Orthodontics, Pediatric & Preventive Dentistry)

Related Issue

11142

Issue Date

2017-01-01

Receive Date

2020-02-27

Publish Date

2017-01-01

Page Start

31

Page End

40

Print ISSN

0070-9484

Online ISSN

2090-2360

Link

https://edj.journals.ekb.eg/article_74368.html

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https://edj.journals.ekb.eg/service?article_code=74368

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4

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Original Article

Type Code

254

Publication Type

Journal

Publication Title

Egyptian Dental Journal

Publication Link

https://edj.journals.ekb.eg/

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Article

Created At

22 Jan 2023