Shear Bond Strength and Adhesive Remnant of Three Protocols used for Bonding Orthodontic Brackets
Pesqui. bras. odontopediatria clín. integr
;
16(1): 433-440, jan.-dez. 2016. tab, ilus
Artículo
en Inglés
| LILACS, BBO
| ID: biblio-912895
ABSTRACT
Objective:
To test the shear bond strength and the amount of adhesive remnant on the enamel after debonding of a conventional orthodontic composite system, a flowable composite resin, and a self-adhesive resin cement. Material andMethods:
Thirty extracted bovine incisors were allocated in three groups, according to the type of adhesive Group XT (Transbond XT), Group FL (Flow Z350), and Group RX (RelyX U100). All groups had etching with phosphoric acid. Groups XT and FL received primer before adhesive. Stainless steel metal brackets were bonded using the respective adhesive. Teeth were submitted to shear bond strength (SBS) test, followed by measurement of adhesive remnant. Intergroup comparison of SBS values were performed by one-way Anova and Tukey post-hoc test. Kruskal-Wallis test and the Mann-Whitney U-test were used to compare adhesive remnant.Results:
Transbond XT presented higher bond strength than RelyX U100 and Flow Z350; all adhesives exhibited bond failure within the adhesive. All groups showed bond failure occurring within the adhesive. Transbond XT and RelyX U100 left significantly more adhesive remnant on the tooth surface than Flow Z350.Conclusion:
All three adhesive systems had bond strength above the minimum for clinical routine use. As regards to bond strength, Transbond XT performed better than the resin cement and the flowable resin. Bond failure occurred within the adhesive in all groups.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Ortodoncia
/
Resinas Compuestas
/
Cementos Dentales
/
Resistencia al Corte
Tipo de estudio:
Guía de Práctica Clínica
Límite:
Animales
País/Región como asunto:
America del Sur
/
Brasil
Idioma:
Inglés
Revista:
Pesqui. bras. odontopediatria clín. integr
Asunto de la revista:
Odontología
Año:
2016
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Potiguar University/BR
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