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Ahmad Akhoundi M, Rahmati Kamel M, Hooshmand T, et al. Assessment of Bond Strength between Metal Brackets and Non-Glazed Ceramic in Different Surface Treatment Methods. J Dent (Tehran). 2010;7(2):64-70
Ahmad Akhoundi, M., Rahmati Kamel, M., Hooshmand, T., Harririan, I., Kharazi Fard, M., & Noroozi, H. (2010). Assessment of Bond Strength between Metal Brackets and Non-Glazed Ceramic in Different Surface Treatment Methods. Journal of dentistry (Tehran, Iran), 7(2), 64-70.
Ahmad Akhoundi, Ms, et al. "Assessment of Bond Strength between Metal Brackets and Non-Glazed Ceramic in Different Surface Treatment Methods." Journal of dentistry (Tehran, Iran) vol. 7,2 (2010): 64-70.
Ahmad Akhoundi M, Rahmati Kamel M, Hooshmand T, Harririan I, Kharazi Fard M, Noroozi H. Assessment of Bond Strength between Metal Brackets and Non-Glazed Ceramic in Different Surface Treatment Methods. J Dent (Tehran). 2010;7(2):64-70. Epub 2010 Jun 30. PMID: 21998777; PMCID: PMC3184746.
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J Dent (Tehran). 2010;7(2):64-70. Epub 2010 Jun 30.

Assessment of Bond Strength between Metal Brackets and Non-Glazed Ceramic in Different Surface Treatment Methods.

Journal of dentistry (Tehran, Iran)

Ms Ahmad Akhoundi, M Rahmati Kamel, T Hooshmand, I Harririan, Mj Kharazi Fard, H Noroozi

Affiliations

  1. Associate Professor, Dental Research Center, Tehran University of Medical Sciences, Tehran, Iran.

PMID: 21998777 PMCID: PMC3184746

Abstract

OBJECTIVE: The aim of this study was to evaluate the bond strength between metal brackets and non-glazed ceramic with three different surface treatment methods.

MATERIALS AND METHODS: Forty-two non-glazed ceramic disks were assigned into three groups. Group I and II specimens were etched with 9.5% hydrofluoric acid. Subsequently in group I, silane and adhesive were applied and in group II, bonding agent was used only. In group III, specimens were treated with 35% phosphoric acid and then silane and adhesive were applied. Brackets were bonded with light-cured composites. The specimens were stored in water in room temperature for 24 hours and then thermocycled 500 times between 5°C and 55°C.

RESULTS: The difference of tensile bond strength between groups I and III was not significant (P=0.999). However, the tensile bond strength of group II was significantly lower than groups I, and III (P<0.001). The adhesive remnant index scores between the three groups had statistically significant differences (P<0.001).

CONCLUSION: With the application of scotch bond multi-purpose plus adhesive, we can use phosphoric acid instead of hydrofluoric acid for bonding brackets to non-glazed ceramic restorations.

Keywords: Dental Porcelain; Orthodontic Brackets; Shear Strength

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