Efectos de aplicación de ácido fosfórico y microarenado en adhesivos autograbadores de uno y dos pasos

Alba Lucía Gómez Carreño; Laura Isabel Prada Espinosa; Henry Alexander Barrios Bastidas; Mauricio Peña Castillo; Edgar Alexander López López; Osnara María Mongruel Gomes; John Alexis Domínguez

doi:10.16925/od.v11i20.763

Effects of Phosphoric Acid and Microsandblasting in One-Step or Two-Step Self-Etching Adhesives

Research Articles

https://doi.org/10.16925/od.v11i20.763

Alba Lucía Gómez Carreño Ver Biografía

Universidad Hispano Guaraní

Laura Isabel Prada Espinosa Ver Biografía

Universidad Hispano Guaraní

Henry Alexander Barrios Bastidas Ver Biografía

Universidad Hispano Guaraní

Mauricio Peña Castillo Ver Biografía

Universidad Hispano Guaraní

Edgar Alexander López López Ver Biografía

Universidad Hispano Guaraní

Osnara María Mongruel Gomes Ver Biografía

Universidad Hispano Guaraní

John Alexis Domínguez Ver Biografía

Universidad Hispano Guaraní

Introduction: the object of this research was to evaluate the microshearing strength of two self-etching adhesives: one-step and two-step on enamel, upon acid and microsandblasting.

Methods: 40 recently pulled human third molars, which were filed down with 600 - 2500 and divided into two groups: 1) one step (n = 20); 2) two steps (n = 20); then they were divided into four subgroups, following the procedures (sa-sm: adhesive application according to the manufacturer; sa-m: upon microsandblasting and adhesive application; ca-sm: 37% phosphoric acid application and adhesive application; ca-m: microsandblasting, 37% phosphoric acid and adhesive). Then, three layers of tygon were applied on each surface. Microshearing test conducted. The data were analyzed with the D’Agostino normality test. Afterwards, the two-criteria Anova analysis was conducted and Bonferrini postest (α = 0.05).

Results: for the two-step adhesive prior application of 37% phosphoric acid and/ or microsandblasting, there is no significant increase in the enamel adhesion strength values (p = 0,678). The application of 37% phosphoric acid on enamel before the one-step adhesive increases the strength values (p = 0,001).

Conclusions: microsandblasting before the adhesive process does not help increase the enamel adhesion strength values; the application of phosphoric acid helps increase the enamel adhesion strength values.

Keywords: adhesion strength, tooth enamel, Microshear, self-etching adhesives

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Effects of Phosphoric Acid and Microsandblasting in One-Step or Two-Step Self-Etching Adhesives. (2015). Revista Nacional De Odontología, 11(20). https://doi.org/10.16925/od.v11i20.763

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