Bond strength of orthodontic brackets using different light and self-curing cements

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RECERCAT Home > Universitat de Barcelona > Odontoestomatologia > Articles publicats en revistes (Odontoestomatologia) > View document

To access the full text documents, please follow this link: http://hdl.handle.net/2445/20728

dc.contributor	Universitat de Barcelona
dc.contributor.author	Toledano, Manuel
dc.contributor.author	Osorio, Raquel
dc.contributor.author	Osorio, Estrella
dc.contributor.author	Romeo García, Alejandro
dc.contributor.author	Higuera, Blanca de la
dc.contributor.author	García-Godoy, Franklin
dc.date	2011-11-15T12:50:43Z
dc.date	2011-11-15T12:50:43Z
dc.date	2003-02-01
dc.identifier.citation	0003-3219
dc.identifier.citation	578796
dc.identifier.uri	http://hdl.handle.net/2445/20728
dc.format	8 p.
dc.format	application/pdf
dc.language.iso	eng
dc.publisher	Allen Press Inc.
dc.relation	Reproducció del document publicat a: http://dx.doi.org/10.1043/0003-3219(2003)073"MJq"0056:BSOOBU"MnQ"2.0.CO;2
dc.relation	The Angle Orthodontist, 2003, vol. 73, núm. 1, pp. 56-63
dc.relation	http://dx.doi.org/10.1043/0003-3219(2003)073"MJq"0056:BSOOBU"MnQ"2.0.CO;2
dc.rights	(c) The E. H. Angle Education and Research Foundation, 2003
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Ortodòncia
dc.subject	Tecnologia dental
dc.subject	Orthodontics
dc.subject	Dental technology
dc.title	Bond strength of orthodontic brackets using different light and self-curing cements
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion
dc.description.abstract	The purpose of the study was to evaluate the shear bond strength of stainless steel orthodontic brackets directly bonded to extracted human premolar teeth. Fifty teeth were randomly divided into ¿ve groups: (1) System One (chemically cured composite resin), (2) Light Bond (light-cured composite resin), (3) Vivaglass Cem (self-curing glass ionomer cement), (4) Fuji Ortho LC (light-cured glass ionomer cement) used after 37% orthophosphoric acid¿etching of enamel (5) Fuji Ortho LC without orthophosphoric acid¿etching. The brackets were placed on the buccal and lingual surfaces of each tooth, and the specimens were stored in distilled water (24 hours) at 378C and thermocycled. Teeth were mounted on acrylic block frames, and brackets were debonded using an Instron machine. Shear bond strength values at fracture (Nw)were recorded. ANOVA and Student-Newman-Keuls multiple comparison tests were performed (P , .05). Bonding failure site was recorded by stereomicroscope and analyzed by Chi-square test, selected specimens of each group were observed by scanning electron microscope. System One attained the highest bond strength. Light Bond and Fuji Ortho LC, when using an acid-etching technique, obtained bond strengths that were within the range of estimated bond strength values for successful clinical bonding. Fuji Ortho LC and Vivaglass Cem left an almost clean enamel surface after debracketing.

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