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Effects of different silanes and acid concentrations on bond strength of brackets to porcelain surfaces.
Eur J Orthod. 2009 Aug; 31(4):402-6.EJ

Abstract

The aim of this study was to determine the optimum silane-coupling agent and the optimum concentration of acid agent when bonding to porcelain surfaces. Eighty deglazed feldspathic porcelain discs with a diameter of 10 mm and a thickness of 2 mm mounted in acrylic resin blocks were randomly divided into four groups. In groups 1 and 2, the porcelain surfaces were etched with 9.6 per cent hydrofluoric (HF) acid and in groups 3 and 4 with 5 per cent HF acid. In groups 1 and 3, the Dynalock maxillary central incisor brackets were bonded with Pulpdent silane and Unite bonding adhesive and in groups 2 and 4 with Reliance silane and Unite. Shear forces were applied to the samples using an Instron universal test machine. The non-parametric Kruskal-Wallis test was used to determine significant differences in bond strengths between the four groups and Dunn's multiple comparison test to compare subgroups. The mean bond strengths and standard deviations of groups 1 to 4 were 5.51 +/- 1.19, 6.54 +/- 0.002, 4.55 +/- 1.93, and 6.39 +/- 0.45 MPa, respectively. Specimens bonded with Reliance showed a statistically significantly higher in vitro bond strength than those bonded with Pulpdent. The concentration of etching gels did not result in any statistically significant difference on the in vitro bond strength when evaluated separately.

Authors+Show Affiliations

Department of Orthodontics, Faculty of Dentistry, Yeditepe University, Turkey. goksu.trakyali@yeditepe.edu.trNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

19339674

Citation

Trakyali, Göksu, et al. "Effects of Different Silanes and Acid Concentrations On Bond Strength of Brackets to Porcelain Surfaces." European Journal of Orthodontics, vol. 31, no. 4, 2009, pp. 402-6.
Trakyali G, Malkondu O, Kazazoğlu E, et al. Effects of different silanes and acid concentrations on bond strength of brackets to porcelain surfaces. Eur J Orthod. 2009;31(4):402-6.
Trakyali, G., Malkondu, O., Kazazoğlu, E., & Arun, T. (2009). Effects of different silanes and acid concentrations on bond strength of brackets to porcelain surfaces. European Journal of Orthodontics, 31(4), 402-6. https://doi.org/10.1093/ejo/cjn118
Trakyali G, et al. Effects of Different Silanes and Acid Concentrations On Bond Strength of Brackets to Porcelain Surfaces. Eur J Orthod. 2009;31(4):402-6. PubMed PMID: 19339674.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of different silanes and acid concentrations on bond strength of brackets to porcelain surfaces. AU - Trakyali,Göksu, AU - Malkondu,Ozlem, AU - Kazazoğlu,Ender, AU - Arun,Tülin, Y1 - 2009/04/01/ PY - 2009/4/3/entrez PY - 2009/4/3/pubmed PY - 2009/10/30/medline SP - 402 EP - 6 JF - European journal of orthodontics JO - Eur J Orthod VL - 31 IS - 4 N2 - The aim of this study was to determine the optimum silane-coupling agent and the optimum concentration of acid agent when bonding to porcelain surfaces. Eighty deglazed feldspathic porcelain discs with a diameter of 10 mm and a thickness of 2 mm mounted in acrylic resin blocks were randomly divided into four groups. In groups 1 and 2, the porcelain surfaces were etched with 9.6 per cent hydrofluoric (HF) acid and in groups 3 and 4 with 5 per cent HF acid. In groups 1 and 3, the Dynalock maxillary central incisor brackets were bonded with Pulpdent silane and Unite bonding adhesive and in groups 2 and 4 with Reliance silane and Unite. Shear forces were applied to the samples using an Instron universal test machine. The non-parametric Kruskal-Wallis test was used to determine significant differences in bond strengths between the four groups and Dunn's multiple comparison test to compare subgroups. The mean bond strengths and standard deviations of groups 1 to 4 were 5.51 +/- 1.19, 6.54 +/- 0.002, 4.55 +/- 1.93, and 6.39 +/- 0.45 MPa, respectively. Specimens bonded with Reliance showed a statistically significantly higher in vitro bond strength than those bonded with Pulpdent. The concentration of etching gels did not result in any statistically significant difference on the in vitro bond strength when evaluated separately. SN - 1460-2210 UR - https://www.unboundmedicine.com/medline/citation/19339674/Effects_of_different_silanes_and_acid_concentrations_on_bond_strength_of_brackets_to_porcelain_surfaces_ L2 - https://academic.oup.com/ejo/article-lookup/doi/10.1093/ejo/cjn118 DB - PRIME DP - Unbound Medicine ER -