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Article: Evaluation of an experimental silane primer system in promoting adhesion between orthodontic bracket and ceramic

TitleEvaluation of an experimental silane primer system in promoting adhesion between orthodontic bracket and ceramic
Authors
KeywordsAdhesion
3-Acryloxypropyltrimethoxysilane
Bis-1,2-(triethoxysilyl)Ethane
Surface Roughness
Contact Angle
Issue Date2016
PublisherAmerican Scientific Publishers. The Journal's web site is located at http://www.aspbs.com/jbt.html
Citation
Journal of Biomaterials and Tissue Engineering, 2016, v. 6 n. 3, p. 239-245 How to Cite?
AbstractThe aim of the study was to evaluate in vitro the effect of an experimental silane primer system on the adhesion strength of metallic orthodontic brackets bonded to a ceramic surface. For this purpose, a total of 180 glazed ceramic porcelain fused to metal (PFM) veneer were randomly assigned into 2 groups of 90 specimens, according to the primer used. Each group was further divided into 3 subgroups according to the surface treatment to be received, thus there were 6 study groups; three with 3-acryloxypropyltrimethoxysilane (ACPS) silane primer, namely 1a (pretreatment with hydrofluoric acid, HF), 1b (pretreatment with grit-blasting) and 1c (pretreatment with tribochemical silica-coating) and 3 with a novel silane system (ACPS+bis-1,2(triethoxysilyl) ethane (BTSE)) assigned as 2a (HF), 2b (grit-blast), and 2c (tribochemical silica coating). The samples were evaluated for surface roughness (Ra) before and after surface conditioning. Next, 15 samples from each subgroups were subjected to thermo-cycling and remaining 15 samples served as the baseline (n = 15). Adhesion strength (the shear bond strength, SBS) was recorded using a universal testing machine. Debonding failure types were classified according to the adhesive remnant index (ARI). Contact angles of the primers were measured. Data were analyzed by ANOVA and Tukey’s multiple comparison post hoc analysis. The highest SBS at baseline (26 8+1 7 MPa) and after thermocycling (24 6+1 7 MPa) was observed in group 2c, and the lowest (9 6+1 5 MPa and 4 5+1 1 MPa) was found in group 1a. Specimens pretreated with tribochemical silica-coating exhibited the highest Ra and the lowest Ra was observed in HF treated specimens. The application of experimental silane primer system on specimens pretreated with tribochemical silica-coating demonstrated increased adhesion of orthodontic brackets making it an excellent choice in orthodontic bonding for a relatively long term use.
Persistent Identifierhttp://hdl.handle.net/10722/224943
ISSN
2015 Impact Factor: 1.287
2015 SCImago Journal Rankings: 0.470

 

DC FieldValueLanguage
dc.contributor.authorDurgesh, BH-
dc.contributor.authorAlhijji, S-
dc.contributor.authorHashem, MI-
dc.contributor.authorAl Kheraif, AA-
dc.contributor.authorMalash, AM-
dc.contributor.authorDivakar, DD-
dc.contributor.authorAl Shahrani, OA-
dc.contributor.authorAl Asmari, M-
dc.contributor.authorMatinlinna, JP-
dc.date.accessioned2016-04-18T03:34:38Z-
dc.date.available2016-04-18T03:34:38Z-
dc.date.issued2016-
dc.identifier.citationJournal of Biomaterials and Tissue Engineering, 2016, v. 6 n. 3, p. 239-245-
dc.identifier.issn2157-9083-
dc.identifier.urihttp://hdl.handle.net/10722/224943-
dc.description.abstractThe aim of the study was to evaluate in vitro the effect of an experimental silane primer system on the adhesion strength of metallic orthodontic brackets bonded to a ceramic surface. For this purpose, a total of 180 glazed ceramic porcelain fused to metal (PFM) veneer were randomly assigned into 2 groups of 90 specimens, according to the primer used. Each group was further divided into 3 subgroups according to the surface treatment to be received, thus there were 6 study groups; three with 3-acryloxypropyltrimethoxysilane (ACPS) silane primer, namely 1a (pretreatment with hydrofluoric acid, HF), 1b (pretreatment with grit-blasting) and 1c (pretreatment with tribochemical silica-coating) and 3 with a novel silane system (ACPS+bis-1,2(triethoxysilyl) ethane (BTSE)) assigned as 2a (HF), 2b (grit-blast), and 2c (tribochemical silica coating). The samples were evaluated for surface roughness (Ra) before and after surface conditioning. Next, 15 samples from each subgroups were subjected to thermo-cycling and remaining 15 samples served as the baseline (n = 15). Adhesion strength (the shear bond strength, SBS) was recorded using a universal testing machine. Debonding failure types were classified according to the adhesive remnant index (ARI). Contact angles of the primers were measured. Data were analyzed by ANOVA and Tukey’s multiple comparison post hoc analysis. The highest SBS at baseline (26 8+1 7 MPa) and after thermocycling (24 6+1 7 MPa) was observed in group 2c, and the lowest (9 6+1 5 MPa and 4 5+1 1 MPa) was found in group 1a. Specimens pretreated with tribochemical silica-coating exhibited the highest Ra and the lowest Ra was observed in HF treated specimens. The application of experimental silane primer system on specimens pretreated with tribochemical silica-coating demonstrated increased adhesion of orthodontic brackets making it an excellent choice in orthodontic bonding for a relatively long term use.-
dc.languageeng-
dc.publisherAmerican Scientific Publishers. The Journal's web site is located at http://www.aspbs.com/jbt.html-
dc.relation.ispartofJournal of Biomaterials and Tissue Engineering-
dc.subjectAdhesion-
dc.subject3-Acryloxypropyltrimethoxysilane-
dc.subjectBis-1,2-(triethoxysilyl)Ethane-
dc.subjectSurface Roughness-
dc.subjectContact Angle-
dc.titleEvaluation of an experimental silane primer system in promoting adhesion between orthodontic bracket and ceramic-
dc.typeArticle-
dc.identifier.emailMatinlinna, JP: jpmat@hku.hk-
dc.identifier.authorityMatinlinna, JP=rp00052-
dc.identifier.doi10.1166/jbt.2016.1457-
dc.identifier.hkuros257595-
dc.identifier.volume6-
dc.identifier.issue3-
dc.identifier.spage239-
dc.identifier.epage245-
dc.publisher.placeUnited States-

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